HomeMy Public PortalAboutResolution 21-02 Valley County Multi-Jurisdictional Hazard Mitigation Plan City of McCall
RESOLUTION 21-02
A RESOLUTION OF THE CITY OF MCCALL, IDAHO, ADOPTING THE 2020 VALLEY
COUNTY MULTI-JURISDICTIONAL HAZARD MITIGATION PLAN, PROVIDING FOR
RELATED MATTERS,AND PROVIDING AN EFFECTIVE DATE.
WHEREAS, the 2020 Valley County Multi-Jurisdictional Hazard Mitigation Plan was prepared by the
University of Idaho for Valley County, the Cities of McCall, Donnelly and Cascade, and the area Fire
Districts and the plan will assist the City and the community in preparing for natural hazards and disasters;
and
WHEREAS, the Plan is an update to the previously adopted 2010 Valley County Multi-Jurisdictional
Hazard Mitigation Plan and is intended to be in compliance with Title 44,part 201, section 6 of the Code
of Federal Regulations(44 CFR§201.6)referred to as the Disaster Mitigation Act of 2000; and
WHEREAS, adoption of the Plan allows the City of McCall to apply for federal hazard mitigation grants
for the benefit and future safety of the McCall community, and
WHEREAS, the 2018 McCall Area Comprehensive Plan was adopted by the McCall City Council on
January 11, 2018; states its intent, at Environment Goal, Policy 9.1, to "Conduct a Hazard Mitigation
Master Plan to effectively assess and address hazard risks"; and
WHEREAS, a duly noticed Public Hearing was conducted on January 7,2021;
NOW, THEREFORE, BE IT RESOLVED, by the Mayor and City Council of the City of McCall,
Valley County, Idaho that:
The 2020 Valley County Multi-Jurisdictional Hazard Mitigation Plan is adopted, and a copy of the Plan
is attached hereto as Exhibit 1, and by this reference incorporated herein.
This resolution shall be in full force and effect upon its passage and approval.
Passed and approved this �th day of January 2021.
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Valley County, Idaho
Multi jurisdictional Hazard Mitigation Plan
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Update 2020
The Multi-Jurisdictional Hazard Mitigation Plan
of
Valley County, Idaho
and the Cities of
Cascade, Donnelly and McCall
Prepared for
Valley County Emergency Management
244 W. Roseberry Rd.
Donnelly, Idaho 83615
(208) 325-8619
March 2020
Executive Summary
The Valley County Hazard Multi-Jurisdictional Mitigation Plan (HMP) is an update to the 2011
Valley County Multi-Jurisdictional Hazard Mitigation Plan.Through a collaborative effort between
the county, its jurisdictions, the University of Idaho (UI), and the Idaho Office of Emergency
Management (IOEM), the planning update process took place over 2018-2019 and the plan was
finalized in early 2020. Valley County Emergency Manager Bob West led the Multi-jurisdictional
Planning Committee. The Planning Committee was composed of members from the Valley
County Office of Emergency Management and representatives from the communities, State and
Federal agencies, and other organizations and stakeholders active within the county. As with the
2011 plan, four jurisdictions were actively engaged in the update process, including the cities of
Cascade, Donnelly, McCall, and Valley County. Several other entities were involved as well, such
as the three fire districts within the county and the Payette Lakes Recreation Water and Sewer
District.
Members of the planning committee completed an initial hazard magnitude vs.frequency survey.
The survey was replicated from the former plan to capture changes in the committee's priorities.
Utility outages, winter storms, and wildland fires were ranked highest in both frequency and
magnitude, with thunderstorms and floods following.
The update built on the former plan, but reorganized its structure to enhance the plan's usability.
The update also comprehensively revised all sections of the plan to reflect current hazards,
political and socioeconomic conditions, and incorporate best-available data. Major changes to
the HMP include an updated and rewritten county profile, the inclusion of additional hazards,
more detailed and comprehensive risk and vulnerability assessments for the hazards of focus,
and the addition of new mitigation actions. The 2020 update also builds a strong foundation for
annual review and monitoring of progress, allowing Valley County to maintain the HMP through
the plan's five-year lifecycle.
Mitigation actions were reviewed and updated per feedback from the Planning Committee and
responsible agencies and departments. Additional mitigation actions were included based on
Committee and public input. These actions were scored and ranked to better prioritize efforts
and resources towards the completion of listed mitigation actions.
Finally, under an agreement between IOEM and the Idaho Department of Lands (IDL), the Valley
County Wildfire Mitigation Plan acts as the Wildfire Annex to the Valley County Multi-
Jurisdictional Hazard Mitigation Plan, located in Appendix H.
Valley County Multi-Jurisdictional Hazard Mitigation Plan I iii
Table of Contents
1 Introduction...................................................................................................................1
1.1 Overview...........................................................................................................................1
1.2 Legal Authority..................................................................................................................2
1.3 Hazard Mitigation Plan Update...........................................................................................2
1.4 Plan Organization ..............................................................................................................2
2 Planning Process............................................................................................................ 1
2.1 Overview.................................................................................................................................1
2.1.1 Summary of Revisions.................................................................................................................................1
2.1.2 FEMA Requirements ...................................................................................................................................1
2.2 Plan Preparation &Development..............................................................................................1
2.3 Multi-Jurisdictional Participation &Coordination......................................................................2
2.4 The Planning Team&Stakeholder Participation........................................................................3
2.5 Planning Meetings....................................................................................................................4
2.5.1 January 2017 Kickoff Meeting.....................................................................................................................4
2.5.2 February 2017 Kickoff Meeting...................................................................................................................4
2.5.3 April 2017 Planning Meeting.......................................................................................................................5
2.5.4 July 2017 Planning Meeting........................................................................................................................5
2.5.5 November 2017 Planning Meeting&Conference Call ...............................................................................5
2.5.6 March—August 2018..................................................................................................................................5
2.5.7 November 2019...........................................................................................................................................5
2.6 Public Involvement...................................................................................................................5
2.7 Review&Incorporation of Existing Plans, Reports, Studies, &Technical Information.................6
2.7.1 Valley County Comprehensive Plan............................................................................................................6
2.7.2 Valley County Emergency Operations Plan................................................................................................7
2.7.3 Donnelly Comprehensive Plan ....................................................................................................................7
2.7.4 City of McCall Comprehensive Plan ...........................................................................................................8
2.7.5 West Central Mountains Economic Development Strategy.......................................................................9
3 County& Community Profiles....................................................................................... 10
3.1 Overview.........................................................................................................................10
3.1.1 Summary of Revisions..........................................................................................................................10
3.1.2 FEMA Requirements............................................................................................................................10
3.2 Geographic Setting&Historical Context...........................................................................10
3.3 Climate&Weather..........................................................................................................11
3.4 Demographics..................................................................................................................12
3.5 Economic Profile..............................................................................................................13
3.6 Land Use& Development Trends......................................................................................13
3.7 Vegetative Cover .............................................................................................................14
3.8 Hydrology........................................................................................................................17
Valley County Multi-Jurisdictional Hazard Mitigation Plan I iv
4 Risk Assessment........................................................................................................... 18
4.1 Overview ...............................................................................................................................18
4.1.2 Plan Requirements& Regulations.............................................................................................................18
4.2 Earthquake.............................................................................................................................19
4.2.1 Hazard Vulnerability&Risk Summary.......................................................................................................19
4.2.2 Hazard Description....................................................................................................................................20
4.2.3 Hazard Occurrence, Location&Extent.....................................................................................................23
4.3 Flood......................................................................................................................................24
4.3.1 Hazard Vulnerability& Risk Summary.......................................................................................................24
4.3.2 Hazard Description....................................................................................................................................25
4.3.3 Hazard Occurrence, Location, Extent........................................................................................................28
4.3.4 Future Probability.....................................................................................................................................29
4.4 Severe Weather .....................................................................................................................29
4.4.1 Hazard Vulnerability&Risk Summary.......................................................................................................29
4.4.2 Hazard Description....................................................................................................................................32
4.4.3 Hazard Occurrence, Location&Extent.....................................................................................................34
4.4.4 Future Probability.....................................................................................................................................35
4.5 Landslide................................................................................................................................35
4.5.1 Hazard Vulnerability& Risk Summary.......................................................................................................35
4.5.2 Hazard Description....................................................................................................................................36
4.5.3 Hazard Occurrence, Location&Extent.....................................................................................................37
4.5.4 Future Probability.....................................................................................................................................37
4.6 Wildfire..................................................................................................................................38
4.6.1 Hazard Vulnerability&Risk Summary.......................................................................................................38
4.6.2 Wildfire Annex...........................................................................................................................................39
5 Mitigation Strategy...................................................................................................... 40
5.1 Overview...............................................................................................................................40
5.1.1 Summary of Revisions...............................................................................................................................40
5.1.2 FEMA Requirements .................................................................................................................................40
5.2 Mitigation Strategy Goals.......................................................................................................41
5.3 Valley County Mitigation Actions&Implementation Plan........................................................41
5.3.1 Changes in Mitigation Priorities................................................................................................................47
5.3.2 Completed& Removed Mitigation Actions& Projects.............................................................................47
5.4 City of Cascade Mitigation Actions& Implementation Plan......................................................47
5.4.1 Changes in Mitigation Priorities................................................................................................................50
5.4.2 Completed& Remove Mitigation Actions& Projects...............................................................................50
5.5 City of Donnelly Mitigation Actions& Implementation Plan ....................................................50
5.5.1 Changes in Mitigation Priorities................................................................................................................53
5.5.2 Completed& Removed Mitigation Actions& Projects.............................................................................53
5.6 City of McCall Mitigation Actions& Implementation Plan........................................................53
5.6.1 Changes in Mitigation Priorities................................................................................................................56
5.6.2 Completed& Removed Mitigation Actions& Projects.............................................................................56
5.7 Special Districts Mitigation Actions& Implementation Plan.....................................................56
5.7.1 Changes in Mitigation Priorities................................................................................................................58
Valley County Multi-Jurisdictional Hazard Mitigation Plan I v
5.7.2 Completed& Removed Mitigation Actions&Projects.............................................................................58
6 Mitigation Capabilities................................................................................................. 59
6.1 Overview...............................................................................................................................59
6.1.1 Summary of Revisions...............................................................................................................................59
6.1.2 FEMA Requirements .................................................................................................................................59
6.2 Federal &State Planning&Regulatory Capabilities.................................................................59
6.3 National Flood Insurance Program Compliance .......................................................................60
6.4 Valley County Mitigation Capabilities Assessment...................................................................61
6.5 Cascade City Mitigation Capabilities Assessment.....................................................................64
6.6 City of Donnelly Mitigation Capabilities Assessment................................................................65
6.7 City of McCall Mitigation Capabilities Assessment...................................................................67
6.8 Other Planning Mechanisms..................................................................................................69
7 Plan Maintenance........................................................................................................ 71
7.1 Overview...............................................................................................................................71
7.1.1 Summary of Revisions...............................................................................................................................71
7.1.2 FEMA Requirements .................................................................................................................................71
7.2 Plan Monitoring, Evaluation,& Update...................................................................................71
7.2.1 Monitoring Implementation .....................................................................................................................72
7.2.2 Evaluating Implementation.......................................................................................................................72
7.2.3 Updating the Plan......................................................................................................................................72
7.3 Continued Public Participation................................................................................................73
List of Tables
Table 2.1 Jurisdictional Participation...........................................................................................................2
Table 2.2 Update Planning Team Members.................................................................................................3
Table 2.3 Stakeholders and other partners.................................................................................................4
Table 3.1 McCall Idaho Climate Summary.................................................................................................12
Table 3.2 Selected Demographic Statistics (2018 Census) ........................................................................12
Table 3.3 Vegetative Cover Types..............................................................................................................15
Table 4.1 Modified Mercalli Intensity Scale...............................................................................................23
Table 4.2 Notable Earthquake Occurrences, Valley County(per the 2018 Idaho State HMP)..................23
Table 4.3 NFIP Statistics for Valley County................................................................................................28
Table 4.4 Historic Flood Occurrences ........................................................................................................29
Table 4.5 Historic Landslide,State and Federal Declarations....................................................................37
Table 5.1 Valley County Mitigation Actions and Implementation Plan....................................................41
Table 5.2 Valley County Completed and Removed Mitigation Actions.....................................................47
Table 5.3 City of Cascade Mitigation Actions and Implementation Plan..................................................48
Table 5.4 City of Cascade Completed or Removed Mitigation Actions .....................................................50
Table 5.5 City of Donnelly Mitigation Actions and Implementation Plan..................................................51
Table 5.6 City of Donnelly Completed or Removed Mitigation Actions....................................................53
Valley County Multi-Jurisdictional Hazard Mitigation Plan vi
Table 5.7 City of McCall Mitigation Actions and Implementation Plan.....................................................54
Table 5.8 City of McCall Completed or Removed Mitigation Actions........................................................56
Table 5.9 Payette Lakes Recreation Water and Sewer District Mitigation Actions and Implementation
Plan .............................................................................................................................................................57
Table 5.10 Rural Fire Districts Mitigation Actions and Implementation Plan............................................57
Table6.1 NFIP Statistics.............................................................................................................................60
Table 6.2 Valley County Mitigation-Related Capabilities...........................................................................61
Table 6.3 Cascade City Capabilities Assessment........................................................................................64
Table 6.4 City of Donnelly Capabilities Assessment...................................................................................65
Table 6.5 City of McCall Capabilities Assessment......................................................................................67
Table 6.6 Valley County Comprehensive Plan Planning Mechanism.........................................................69
List of Figures
Figure1.1: Disaster Cycle..............................................................................................................................1
Figure3.1 Valley County, Idaho..................................................................................................................11
Figure 3.2 Land Cover Classification from the 2016 National Land Cover Dataset....................................16
Figure 4.1 Valley Country Earthquake Hazard Map....................................................................................20
Figure4.2 USGS Seismic Forecast...............................................................................................................24
Figure 4.3 Valley County Flood Hazard Map...............................................................................................25
Figure 4.4 Valley County Winter Weather Hazard Map .............................................................................30
Figure 4.5 Valley County Lightening Hazard Map.......................................................................................31
Figure 4.6 Valley County Tornado Hazard Map..........................................................................................32
Figure 4.7 Valley County Landslide Hazard Map.........................................................................................36
Figure 4.8 Valley County Wildfire Hazard Map...........................................................................................38
List of Appendices
Appendix A. Plan Promulgation & Adoption Resolution
Appendix B. Plan Review Tool
Appendix C. Letters of Participation
Appendix D. Prioritization of New Mitigation Strategies (Staplee forms)
Appendix E. Public Involvement & Planning Meeting Documentation
Appendix F. NFIP Compliance Statements
Appendix G. Special Report by ICEM, FEMA and the Idaho Geologic Survey, December 2017: A
Risk Assessment Database Summary for Valley County and the Incorporated Cities of Cascade,
Donnelly and McCall.
Appendix H. Wildland Fire and Flood Assessment for Lewis County, Idaho, 2010, Northwest
Management, Inc.
Valley County Multi-Jurisdictional Hazard Mitigation Plan I vii
Acronyms
Acronym Definition
BLM Bureau of Land Management
CFR Code of Federal Regulations
CRS Community Rating System
DEQ Department of Environmental Quality
DMA Disaster Mitigation Act of 2000
EMS Emergency Medical System
FEMA Federal Emergency Management Agency
GIs Geographic Information System
HIFLD Homeland Infrastructure Foundation-Level Data
HMP Hazard Mitigation Plan
IDL Idaho Department of Lands
IOEM Idaho Office of Emergency Management
ITD Idaho Transportation Department
LEPC Local Emergency Planning Committee
MMI Modified Mercalli Intensity
MOA Memorandum of Agreement
MOU Memorandum of Understanding
NEHRP National Earthquake Hazard Reduction Program
NAP National Flood Insurance Program
PDM Pre-Disaster Mitigation Grant
PGA Peak Ground Acceleration
P&Z Planning & Zoning
USFS U.S. Forest Service
UI University of Idaho
USACE U.S. Army Corps of Engineers
USGS U.S. Geological Survey
WUI Wildland Urban Interface
Valley County Multi-Jurisdictional Hazard Mitigation Plan viii
I Introduction
1.1 Overview
The Valley County Multi-Jurisdictional Hazard Mitigation Plan
(HMP) identifies both short and long-term policies and actions ��S4GATj�N
that help reduce risk and future losses from hazards. The term
hazard is defined as any event with the potential to cause loss
of life or property. Such events include natural hazards (such as
earthquakes, floods, landslides, severe weather, and wildfire)
and anthropogenic hazards (such as civil unrest and hazardous
materials). Hazards then become disasters when communities
are negatively impacted or overwhelmed by such events. To
reduce the risk to disasters, hazard mitigation is implemented 43NOdS3
across the county and its communities. Hazard mitigation Figure 1.1:Disaster Cycle
consists of cost-effective actions that are often divided into
three categories:
• Policies and actions that keep the hazard away from people, property, and structures.
• Policies and actions that keep people, property, and structures away from hazards.
• Policies and actions that reduce the hazard impacts on people, property, and structures.
This plan identifies the vulnerabilities and risks from threats and hazards to the county and its
communities and details the mitigation strategy that will be implemented over a five-year period.
By implementing this plan, resources can more efficiently and effectively be targeted towards
the hazards that pose the greatest risk. Other benefits of this plan include the following:
• Selection of Risk Reduction Actions — Hazard mitigation is a systematic process of
identifying and analyzing the county's risks. By setting clear goals and identifying and
implementing mitigation strategies, the county can reduce losses from future hazards.
• Builds Local, State, & Federal Partnerships —The plan builds partnerships through two-
way communication and collaboration by involving various stakeholders at the local,
State, and Federal levels.
• Facilitates Sustainability — Risk and sustainability are linked, and without identifying and
mitigating risks, the livelihood and continuance of the county and its communities is
threatened. Enhancing resilience to hazards through sound mitigation practices enhances
sustainability.
• Establishes Funding & Resource Priorities — By coordinating and consolidating mitigation
actions undertaken in the county into a unified strategy, the plan helps prioritize and
articulate the county's and its communities' needs to the public, other organizations and
private enterprise, and agencies with stake in the county.
• Increase Hazard Awareness & Education — The hazard mitigation planning process
increases education and awareness of hazards and risks in the county and its
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 1-1
communities. This awareness helps individuals understand their risk, self-mitigate, and
enhance their resilience.This can translate to support of mitigation actions in the county.
1.2 Legal Authority
The legal basis of hazard mitigation plans is the Stafford Act, as amended by the Disaster
Mitigation Act (DMA) of 2000. The DMA emphasizes pre-disaster planning, and Section 322 of
the Act specifically addresses hazard mitigation planning. The DMA requires state and local
governments to prepare and maintain hazard mitigation plans to receive federal hazard
mitigation project grants. This financial assistance can be sought pre- and post-disaster and is
vital in all phases of emergency management. The requirements for an HMP are codified in Title
44, part 201, section 6 of the Code of Federal Regulations(44 CFR §201.6) and include criteria for
six elements. Detailed criteria for each of the requirements can be found in Appendix B, as well
as the relevant sections of the plan (see 1.4 Plan Organization).
1.3 Hazard Mitigation Plan Update
Existing HMPs must be reviewed and updated as required by 44 CFR§201.6(c)(v). The revision
must reflect changes in development, progress made in local mitigation efforts, and changes in
hazard and mitigation priorities. The update then must be resubmitted for approval within five
years to maintain eligibility for FEMA mitigation grant funding.
The former plan was originally completed and adopted in 2011 and expired in 2016. Through a
collaborative effort between the county, its jurisdictions, the University of Idaho (UI), and the
Idaho Office of Emergency Management (IOEM), the plan was updated in 2019. The update built
on the former plan but reorganized its structure to enhance the plan's usability.The update also
comprehensively revised all sections of the plan to reflect current hazards, political and
socioeconomic conditions, and incorporate best-available data. Each section summarizes the
revisions made in the 2020 update.
1.4 Plan Organization
The plan is organized to be operational in nature:
1. Introduction—Provides an overview of mitigation, hazards, and the basis of HMPs.
2. Planning Process—Details the process undertaken for the 2019 plan update. This section
identifies and details the planning committee, participating jurisdictions, and
stakeholders.
3. County & Community Profiles — Provides an overview of the socioeconomic,
demographic, and geographical character of the county and its communities.
4. Risk Assessment — Details identified hazards and risks facing the county. Hazard profiles
include hazard descriptions; hazard extents, magnitudes, and past occurrences;
population, structure, and structure value exposure; socioeconomic vulnerability
assessments; loss estimates; and land use and future developments in relation to hazards.
5. Mitigation Strategy — Details the goals and actions to be implemented to reduce loss of
life and property from hazards and risks identified in the risk assessment.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 1-2
6. Mitigation Capabilities —This section details and describes the capabilities and resources
the participating jurisdictions and organizations can leverage to implement hazard
mitigation. This includes funding avenues and detailed National Flood Insurance Program
(NFIP) information.
7. Plan Maintenance — Details the county's commitment to maintaining the 2019 plan
through the five-year lifecycle. The county will monitor, evaluate, and update the plan on
a bi-annual basis, and engage the public throughout the process.This section also includes
recommended updates for future plans.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 1-3
2 Planning Process
2.1 Overview
The planning process is vital to the development and completion of a comprehensive HMP that
best fits a county and its communities.As with almost all planning efforts,the plan is only as good
as the process itself.A major component of the planning process is involvement and participation
from representatives and stakeholders from the county, local communities, State and Federal
agencies, and other organizations. Through the process, perspectives on hazards and risks,
community assets, and mitigation needs are discussed and incorporated into the plan.
2.1.1 Summary of Revisions
Major revisions include:
• Moved and reorganized the planning process section within the plan;
• Moved and revised the former plan's Introduction, Plan Organization, Plan Use, Purpose,
and Scope sections to Section I. Introduction;
• Moved and revised the former plan's Mission Statement and Goals sections to Section II.
Mitigation Strategy;
• Updated the planning committee to the 2019 participants;
• Revised the former plan's Planning Process section to reflect the 2020 update; and
• Moved the former plan's Plan Maintenance section to Section IV. Plan Maintenance.
2.1.2 FEMA Requirements
This section adheres to and fulfills the following regulations:
• 44 CFR §201.6(b) — An open public involvement process is essential to the development of an
effective plan. In order to develop a more comprehensive approach to reducing the effects of
natural disasters,the planning process shall include:
o (i) —An opportunity for the public to comment on the plan during the drafting stage and
prior to plan approval;
o (ii)—An opportunity for neighboring communities, local and regional agencies involved in
hazard mitigation activities, and agencies that have the authority to regulate
development, as well as businesses, academia and other private and nonprofit interests
to be involved in the planning process; and
o (iii) — Review and incorporation, if appropriate, of existing plans, studies, reports, and
technical information.
• 44 CFR §201.6(c)—The plan shall include the following:
o (i) — Documentation of the planning process used to develop the plan, including how it
was prepared, who was involved in the process, and how the public was involved.
2.2 Plan Preparation & Development
The planning process consisted of the following phases:
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-1
• Plan Update Kick-Off— Plan development for the 2020 update began in January 2017. A
kick-off meeting was held with the planning team to cover FEMA requirements and to
propose a work plan.
• Plan Review& Evaluation—The former plan was reviewed and evaluated according to the
FEMA Local Mitigation Review Tool (2011) and a more stringent and comprehensive
evaluation matrix developed by Frazier et al. (2013). The review and evaluation results
guided the risk assessment and mitigation strategy for the 2019 plan update by identifying
the strengths and weaknesses of the former plan.
• Risk Assessment—Hazard occurrences and hazard impacts were collected for the county.
Hazard profiles were updated to reflect current science around risk and vulnerability.
• Mitigation Strategy Review — The mitigation actions listed in the former plan were
reviewed and their status determined by the responsible jurisdictions and organizations.
• Mitigation Strategy Update — New and additional mitigation actions were detailed and
scored by the planning committee for inclusion into the 2019 plan update. Each
jurisdiction was provided the opportunity to put forth mitigation actions for discussion
and approval. Mitigation goals and objectives were likewise visited and updated as
necessary.
• Public Involvement & Outreach —The public was engaged through news releases to local
media, a mitigation-specific survey distributed online and in-person, and a formal public
meeting. The draft plan was posted to the webpage developed for the 2020 update to
provide opportunity for public comment and feedback.
• Plan Completion & Adoption — Following the compilation of all information, data, and
analyses conducted throughout the planning process, drafts were distributed to the
planning team and the public for review. Feedback and comments were incorporated in
subsequent drafts. After the review and edit period, the plan was formally submitted to
IEOM and FEMA for approval prior to formal adoption by the county, its communities,
and other organizations.
2.3 Multi-Jurisdictional Participation & Coordination
The hazard mitigation planning process was built on the participation of each jurisdiction. All
incorporated communities were invited to participate in the 2020 update through email and
personal outreach by the UI planning team and Valley County Emergency Manager Juan Bonilla.
Table 7.1 summarizes the participation of the jurisdictions with authority to adopt the plan
following IOEM and FEMA review and approval.
Table 2.1 Jurisdictional Participation
Jurisdiction 2011 Participation &Adoption 2019 Participation & Adoption
Valley County Yes Yes
City of Cascade Yes Yes
City of Donnelly Yes Yes
City of McCall Yes Yes
Valley County Multi-Jurisdictional Hazard Mitigation Plan II-2
2.4 The Planning Team & Stakeholder Participation
The planning team is the core group of individuals responsible for the development and update
the plan. Comprised of local officials and subject matter experts, these individuals represent
jurisdictions and organizations with the authority to implement the mitigation strategy over the
plan's five-year life. These individuals and entities bring local knowledge and perspectives to the
table that are vital in developing a comprehensive and cohesive HMP, although they might not
have the authority to implement the mitigation strategy.The 2019 planning team was headed by
Valley County Emergency Manager Juan Bonilla, and is detailed in Table 2.2.
Table 2.2 Update Planning Team Members
Jurisdiction Name Title & Department Former Participation
Juan Bonilla Fire Chief,Emergency Manager Yes
John Coombs Sheriff's Office,Captain Yes
Anne Guarino Building Official Yes
David Crawford Valley County Information Technology
Elt Hasbrouck Commissioner
Valley County Cynda Herrick Planning&Zoning,Floodplain Manager
John Lillehang Fire Working Group, Member Yes
Jeff McFadden Valley County Road Superintendent
Jason Speer Sheriff's Office,Operations Lieutenant
Bill Willey Commissioner
Randy Freeman Police Dept.,Chief
City of Cascade Steve Hull Fire Chief
Rob Terry,Julie Crosby
and Judith Nissula Mayors
Jayme Berheim Donnelly Fire&EMS,EMS Coordinator
Cami Hedges(early
City of Donnelly stages),then Lori City Clerk Yes(Hedges)
Clemens(later stages)
Susan Dorris Mayor _
Franklin Yates Donnelly Fire Dept.,Assistant Fire Chief
Jackie Aymon Mayor Yes
Nate Coyle(early
stages),then Anette City Managers Yes(Coyle)
Spickard(later stages)
City of McCall Garrett deJong McCall Fire Dept.,Assistant Chief
Erin Greaves Communication Manager
Jay Scherer Airport Manager
Justin Williams Chief of Police
SITPA Tim Tevebaugh Assistant Fire Warden
Ken Stump Fire Warden
WPA/FireWise Stephanie Nelson
Additionally, input was sought and provided by the three rural fire districts within the County
(Cascade, McCall and Donnelly)as well as the Payette Lakes Recreation Water and Sewer District.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-3
Table 2.3 Stakeholders and other partners
Jurisdiction Name Title & Department Former Participation
Susan Cleverley Mitigation Division Chief
Idaho Office of Dale Nalder Area Field Officer
Emergency
Management Lorrie Pahl State Mitigation Planner
Ben Roeber Division Chief
St.Luke's McCall Nancy Romero Emergency Management
University of Idaho
Alexander Peterson Mitigation Planner
---- - ---- -- --
Elizabeth Boyden Mitigation Planner
US Bureau of Mike Wissenbach
Reclamation
James Bishop Cascade National Forest,Fuels Specialist
Sean Johnson Payette National Forest,Fire Staff
US Forest Service David Vining Payette National Forest,Fire Mitigation Officer
Josh Warden Boise&Cascade National Forest,Fire Mitigation
Officer
2.5 Planning Meetings
Several meetings were convened throughout the planning process to facilitate discussion
amongst the planning team and other stakeholders with regards to hazards and mitigation. The
following sections summarize these meetings. See Appendix E for sign-in sheets, agendas, and
presentations.
2.5.1 January 2017 Kickoff Meeting
The kickoff meeting for the plan update was held on January 23, 2017 at the Donnelly Fire Station
in Donnelly. The meeting was facilitated by Alexander Peterson, mitigation planner with the
University of Idaho, and Chief Juan Bonilla, the county emergency manager. The meeting was
attended by 18 members of the planning team. The meeting focused on introducing hazard
mitigation, hazard mitigation plans, and the planning process. The requirements of HMPs as
codified in the Code of Federal Regulations (CFR) were presented, and cost share requirements
of the Pre-Disaster Mitigation grant discussed. A brief review of the former plan included which
jurisdictions and agencies participated and adopted the former plan and which hazards were
profiled. A summary of the comprehensive evaluation conducted to identify the former plan's
limitations was presented and discussed, followed by the participation and adoption
requirements for communities and agencies in the 2017 update process.
2.5.2 February 2017 Kickoff Meeting
The planning meeting held on February 22, 2017 focused on initializing the Phase I Risk
Assessment and public outreach.The attending 24 planning team members completed the Phase
I Risk Assessment survey and initial draft of the public opinion survey. The Phase I Risk
Assessment carried forward the frequency-magnitude scoring system of the former plan,
providing a baseline to conduct a comparative analysis on changes in hazard priorities and
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-4
perceptions,while feedback on the public opinion survey provided guidance on revisions prior to
distributing to the public.
2.5.3 April 2017 Planning Meeting
A planning meeting was held on April 17, 2017 and attended by 15 members of the planning
team. The planning meeting focused on reviewing the former mitigation strategy, including any
progress made towards completing or implementing the actions, challenges that arose in
implementing mitigation following the adoption of the former plan, and removing any actions
that were no longer necessary. For those actions carried forward, the planning team discussed
new estimated costs, timelines, and potential funding resources.
2.5.4 July 2017 Planning Meeting
The July 2017 planning meeting was held from 9:00 AM to 12:00 PM on July 26th in Donnelly, and
was attended by six members of the planning team. Discussion and activities revolved around
match to date, public outreach, reviewing and revising the goals of the former mitigation
strategy, as well as aligning the mitigation strategy with the risk assessment.
2.5.5 November 2017 Planning Meeting & Conference Call
A conference call was held from 9:00 AM to 11:00 AM on Wednesday, November 29th. The call
focused on a new timeline to complete the plan update, a review of the cost share documented,
as well as jurisdictional participation to date. Progress to date was discussed, as was the need for
continued public outreach and participation by additional jurisdictions and stakeholders. Also
reviewed and discussed was how the planning team and the adopting jurisdictions will maintain,
evaluate, and update the plan throughout its five-year lifecycle following approval and adoption,
then planned for late 2019.
2.5.6 March —August 2018
In March 2018, Dr.Tim Frazier visited Valley County to meet with the planning committee and
provided a presentation to assist EM Juan Bonilla with the process of working with Valley
County jurisdictions to review prior mitigation strategies and complete capabilities
assessments. On March 21, a planning meeting was held in the City of McCall to discuss these
inputs. The planning committee met again in June 2018 and August 2018.
2.5.7 November 2019
In November 2019, the Valley LEPC met to develop and prioritize new mitigation actions.
2.6 Public Involvement
Public involvement was integral to the 2019 plan update. Appendix E contains press releases,
survey templates, and documentation of the public meetings.
Several press releases were distributed to local media to inform citizens of the update process,
to solicit public review and comments on the draft plan, and to inform citizens of the date, time,
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-5
and location of the public meeting held to discuss the mitigation strategues. Press releases were
distributed at the following times:
• June 20, 2017 —Update announcement with details on the Pre-Disaster Mitigation grant
funding the update, jurisdictional participation, a summary of the planning process and
proposed revisions, and a link to the online opinion survey.
• February 2020 — inform public about availability of the draft plan for further public
comment
2.7 Review & Incorporation of Existing Plans, Reports, Studies, & Technical Information
Several plans, policies, reports, and other documents were reviewed and incorporated into the
2011 plan. The 2020 update process revisited these documents to review and evaluate their
applicability in 2019. Additional documents were also reviewed and incorporated in the 2019
plan update.
2.7.1 Valley County Comprehensive Plan
The Valley County Comprehensive Plan references hazards in Chapter 5 with three goals and
objectives to work towards mitigating against the hazards in which Valley County is at risk.
Goal I: To protect the health and safety of Valley County residents and visitors from the impacts
of natural hazards.
Goal I Objectives:
1. Encourage appropriate agencies to disseminate information about radon gas with
measures to reduce the risk to human health.
2. Continue Valley County's participation in the Federal Emergency Management Agency's
(FEMA) flood insurance program.
a) Promote the program by providing information to the public, realtors, title
companies, and lending institutions.
b) Promote consideration by the Army Corps of Engineers to certify the dam on
Lake Cascade for flood protection.
3. Retain existing regulations that prohibit or control construction, development, and filling
in designated flood prone areas.
4. Encourage uses in floodplains which will incur or cause minimal damage if there is
flooding.
5. Participate with Avalanche Forecast Center.
6. Continue to require engineering for all structures, except utility buildings, to protect
against damage from earthquakes.
Goal Il: To protect the health and safety of Valley County residents and visitors, structural and
infrastructure assets, and wildlife/natural resources from wildfires and the aftermath of wildfires.
Goal II Objectives:
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-6
1. Recognize the Wildland-Urban Interface Wildfire Mitigation Plan portion of the All Hazard
Mitigation Plan — commonly referred to as the County Wildfire Protection Plan (CWPP),
an annually updated plan which includes a Wildfire Risk Assessment Map.
2. Utilize the Wildland Urban Interface Fire Protection Plan portion of the Subdivision
Regulations to guide new and renewed applications toward recognizing wildland fire risk.
3. Encourage property owners to review the Wildfire Section of the All Hazard Mitigation
Plan and reduce the wildland fire risk in their communities and areas of risk.
4. Encourage property owners in the WUI to be proactive and learn how to prepare and
protect their homes and businesses from the threat of uncontrolled wildland fire. Each
and every homeowner is personally responsible for creating and maintaining effective
defensible space.
Goal III: To mitigate effects of disasters on Valley County residents and visitors, structural and
infrastructure assets, and wildlife/natural resources from all hazards.
Goal III Objectives:
1. Participate with other communities in the West Central Mountains in developing the All
Hazard Mitigation Plan.
2. Educate residents and visitors of potential hazards. Enlist first contact professions such as
realtors, title companies, financial institutions, etc.
2.7.2 Valley County Emergency Operations Plan
The Valley County Emergency Operations Plan is currently in the process of being revised. See
Section 6.10 for more information on its consideration in the HMP planning process.
2.7.3 Donnelly Comprehensive Plan
The Donnelly Comprehensive Plan states goals, objectives, and policies to provide guidance to
city decision makers, planners, and project approvals.
Goal: Protect human life, health,and property from the impact of natural and manmade hazards.
Objective I Mitigate losses due to severe weather.
Policy 1 The Planning and Zoning Commission and City Council shall consider the risks
associated with severe weather events when reviewing projects.
Policy 2 Inspect schools and other public buildings for snow-load resistance and retrofit
when necessary.
Policy 3 Collaborate with neighboring cities,Valley County and Adams County to establish
an east-west emergency transportation route.
Policy 4 Prioritize surfacing of secondary and access roads for all weather use.
Objective II Continue to participate in the National Flood Insurance Program.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-7
Policy 5 Maintain current FEMA issued flood hazard maps for the city and surrounding
Area of Impact.
Policy 6 The City shall discourage development in the 100-year floodplain.
Policy 7 Where possible, protect and restore wetland functionality and stabilize stream
and river banks.
Objective III Reduce potential damage to community infrastructure and structures through
implementation of earthquake mitigation techniques
Policy 8 Apply International Building Standards to all new public buildings to prevent
damage from earthquakes.
Policy 9 Where feasible, retrofit public health and safety buildings to be compliant with
International Building Standards to prevent damage from earthquakes.
The Implementation chapter of the plan lists the following actions to mitigate against hazards in
the City of Donnelly:
Action 36 Identify and assess for safety at least one public building as a refugee center in
the event of displacement of city residents due to a severe weather event.
Action 37 Update building codes for new and rebuilt public buildings consistent with
International Building Standards for earthquake design.
Action 38 Assess seismic hazards for public buildings within the city.
Action 39 Where feasible, retrofit public buildings to be compliant with International
Building Standards to prevent damage from earthquakes.
Action 40 Continue to participate in FEMA's National Flood Insurance Program and
maintain accurate flood plain mapping for the city.
Action 41 Inspect schools and other public buildings for snow-load resistance and retrofit
if necessary.
Action 42 Identify and pursue funding to implement the City of Donnelly and Valley
County hazard mitigation activities as described in the Valley County Multi-Jurisdictional
All Hazards Mitigation Plan (2010).
2.7.4 City of McCall Comprehensive Plan
The City of McCall Comprehensive Plan was updated in January 2018. Under the section on
Environment and Natural Resources (page 115), the following goals and policies are directly
related to hazards mitigation planning:
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-8
Goal 9: Encourage approaches to development that will enhance the ability of people, wildlife,
natural systems, and property to withstand and recover from natural disasters and other major
disturbances.
Policy 9.1 Facilitate effective disaster mitigation by providing recommended updates to policies,
programs and regulations as warranted, in preparation for natural disasters.
Additionally, Action Project E21 (page 158) is to conduct a hazard mitigation master plan to
effectively assess and address hazard risks, in coordination with Valley County.
2.7.5 West Central Mountains Economic Development Strategy
The West Central Mountains Economic Development Strategy does not mention hazards;
however, the plan does set out the strategy for jobs, housing, transportation, infrastructure,
education,and regional communication goals and strategies. In order to meet those goals a series
of objectives and tactics are listed to lay out how goal will be accomplished.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-9
3 County & Community Profiles
3.1 Overview
Hazard mitigation within the county needs to be localized to maximize the reduction of losses to
both life and property; therefore, it is pertinent to understand the characteristics of the county
and its communities.
3.1.1 Summary of Revisions
Major revisions made to this section in the 2020 update include:
• Reorganized and restructured into a discrete section
• Updated statistics and data where necessary
• Incorporated new and additional maps and figures where appropriate
• Value of critical infrastructure facilities adjusted per inflation and moved to risk
assessment
• Public Safety section updated and moved to capabilities section
3.1.2 FEMA Requirements
There are no CFR elements specific to this section.
3.2 Geographic Setting & Historical Context
Valley County is a rural county located in the west-central mountains of Idaho. The County is
bounded by Idaho County on the north, Adams and Gem Counties on the west, Boise County on
the south, and Custer and Lemhi Counties on the east. The County was established in February
1917 with Cascade as the county seat. The county contains the North Fork of the Payette River
which extends thirty miles from Payette Lake south to Cascade.The Cascade Dam was completed
on the Payette River in 1948; the Cascade Reservoir covers much of the north-eastern part of the
County.
Valley County covers a huge area in central Idaho,from Long Valley and McCall east to the Middle
Fork of the Salmon River. The South Fork of the Salmon divides the county in two, flowing north
toward the main Salmon river, which is north across the border in Idaho County. The Payette
River drains southward in the western part of the county.
On the extreme northwest are accreted terrane rocks west of the Idaho suture zone. East of the
suture are Cretaceous tonalities and orthogenesis of the Idaho batholith,which pass eastward to
granodiorite that underlies the bulk of the county. A few inliers of Proterozoic and Paleozoic
sedimentary rocks remain, as roof pendants to the batholith.
On the northeast is a down dropped block, the Thunder Mountain caldera, filled with Eocene
Challis volcanic group rocks. North of this block of volcanic rocks is a northwest trending
belt along Big Creek that exposes Mesoproterozoic Belt Supergroup strata and unique
Neoproterozoic intrusive rocks.
Miocene and younger north-striking faults, part of the Basin and Range system, cut the batholith
of the central part of the county, and form the Long Valley graben near Cascade Reservoir and
Payette Lake.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-10
Three major rock groups are exposed near McCall, Idaho. These include: The Cretaceous Idaho
batholith, the Triassic-Jurassic metamorphosed island-arc sedimentary and volcanic rocks of the
Seven Devils Group and the Miocene flood-basalt flows of the Columbia River Basalt Group.
Figure 3.1 Valley County,Idaho
Valley County 1
Idaho
J
J r
W F
5
1 j _
0 10 20 Miles
Legend Waterways&Waterbodies
Projection:NAD 1983 State Plane
[7 County Boundary County Roads Idaho West
—Primary Roads State or Federally Managed Land Source:US Census;ESRI;
Railroad Incorporated Place US Geological Survey;Inside Idaho
3.3 Climate & Weather
Temperatures in Valley County normally reach into the 80's in the summer and drop as low as 0
in the winter. Temperatures are much cooler in the mountains. Precipitation in the mountains
occurs year-round with a deep snowpack accumulating in the winter. Valley precipitation in the
summer is seen with rain showers and thunderstorms.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-11
The average snowfall in the Cascade area is approximately 12.5 inches from January through April
and from October through December. Average precipitation in Cascade areas is 23.0 inches year-
round. Humidity is higher in the morning hours than the afternoon hours in Valley County. McCall
has snowy winters and mild summers. The average temperatures, precipitation, and snowfall for
McCall, Idaho are listed in Table 3.1.
Table 3.1 McCall Idaho Climate Summary
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average Max 31 36 43 51 61 70 80 80 70 57 39 30 54
_Temp(F)
Average Min 13 13 20 27 34 40 43 41 34 27 21 13 27.2
Temp(F)
Average Total p2.91 2.4 2.48 2.01 2.52 2.24 0.83 0.83 1.22 1.81 3.15 3.35 25.75
Pre_cip.(in)
vAverage Total 37 23 16 6 1 0 0 0 0 2 20 33 138
Snowfall(in)
3.4 Demographics
The three incorporated cities within Valley County are Cascade, Donnelly, and McCall. McCall has
the largest population of the three cities with a total population of 2,991. Cascade has a total
population of 939, while Donnelly maintains a smaller total population of 152. The county's
population grew an astounding 32 percent from 7,651 in 2000 to 10,060 in 2008, as Tamarack
Resort—featuring a ski area, a golf course, stores, and large housing developments—was built
and the construction sector boomed. Then, Tamarack's financial problems and the national
recession led to a collapse of construction. The population fell to 9,515 by 2012. In the last few
years, population again is growing and now exceeds the 2008 peak. Between 2006 and 2016,the
county grew 11 percent from 9,480 to 10,496.Table 2.2 summarizes some relevant demographic
statistics for Valley County.
Recreation and tourism are important components of the local economy. At various times of the
year the amount of people in the county increases due to tourists and residents of nearby
counties seeking recreational opportunities.
Table 3.2 Selected Demographic Statistics(2018 Census)
Subject Number Percent
Total Population 10,401 100.00
Sex and Age
Male 5,486 52.7
Female 4,915 47.3
_Median Age(Years) 48.7 -
Relationship
In Households 3,461
Households By Type
Households 3,461
Family Households(Families) 2,370 -
With Own Children Under 18 Years - 21.6
Valley County Multi-Jurisdictional Hazard Mitigation Plan II-12
With People Over 60 Years 51.0
Husband-Wife Family 1,952 -
Average Household Size 2.95
Average Family Size 3.59
3.5 Economic Profile
Valley County's economy once revolved around logging and mills, but over time those industries
have declined. The county's last mill, the Cascade Sawmill, closed in 2002. Today, about 40
individuals work in the logging industry; 25 years ago, about 100 did.
Today, tourism drives the economy. Leisure and hospitably sector provide 23 percent of total
nonfarm employment. Tourism amenities—Payette Lake, rivers, Kelly's Whitewater Park, ski
areas, and fishing and hunting—attract retirees and other people to move into the area. The
leisure and hospitality sectors employ about 1,700 people; 25 years ago, it employed 600.
Between 2000 and 2008, building at Tamarack Resort and throughout the county caused
construction employment to double from 340 to 680.The financial crisis caused construction jobs
to fall to 257 by 2013. In the last few years, construction activity has risen to about 370, near its
2000 level.
Valley County's major employers include Cascade Hospital, Cascade School District, City of
McCall, Franklin Building Supply, McCall-Donnelly School District, McCall Memorial Hospital,
Ridley's Family Market, Tamarack Resort, US Forest Service, and Valley County. Government
employment—including schools and the US Forest Service (USFS)—is approximately 31 percent.
Valley County's per capita income in 2016 was $46,130, which was 117 percent of the state's
average and 94 percent of the national average. The relatively high number of retirees that
moved into the county in recent years is a driver for the high per capita income despite the
relatively low wages earned in the tourism sector.
3.6 Land Use & Development Trends
There are four basic designations for land use in Valley County, including Rural, Cities and City
Areas of Impact, Villages (unincorporated communities), and Tourist Hubs.
The rural designation applies to all real property in the unincorporated areas of Valley County
unless designated otherwise. Commercial and industrial uses are allowed in rural areas but are
encouraged to locate in cities and city areas of impact, villages, and tourist hubs.
Cities and City Areas of Impact applies to all real property within incorporated city limits or within
adopted areas of impact. Most commercial and industrial uses and multi-family residential uses
may locate within this designation.
Villages applies to all real property within the small unincorporated communities known as
Yellow Pine and Lake Fork. Commercial and industrial uses may be allowed in the villages in
locations found to be compatible with nearby uses and with the existing village character.
Tourist Hubs applies to all real property for the tourist services located in the areas known as
Tamarack Ski Resort, Smith's Ferry, Clear Creek,West Mountain Lodge,Tamarack Falls Store, Big
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-13
Creek, Roseberry, Deadwood, Goldfork Hotsprings, Silver Creek Plunge, and Warm Lake.
Expansion of services should be encouraged to locate in the tourist hubs.
According to the Valley County Comprehensive Plan, land use patterns have radically altered
during the past decades away from the traditional agricultural-use pattern to one of recreation
home and subdivision development. This rapidly evolving pattern, which places more demands
on the environment and community and the former one, creates the need for a thoughtful
response from the community to prevent future damages to the environment and community
which attracted development here in the beginning. The plan also lists various objectives related
to future development including, but not limited to:
• Discourage scattered, sprawling, haphazard suburban development by:
• Controlling suburban development on open foothills.
• Continuing to implement land use planning in order to avoid conflicts with
noncompatible uses.
• Encouraging development in timbered areas and in compact subdivisions thus
facilitating better use of utilities, road maintenance, police, and fire protection.
• Emphasize natural beauty when designing projects, such as bridges, roadways,
commercial buildings, subdivisions, and homes.
• Relate future county development to natural site advantages and limitations such as soil,
slope, water table, view, flood hazards, and wind direction. Recognition of such factors
will produce optimum development and prevent hazardous and costly conditions from
developing.
• Local Officials Narrative on Development Trends for Valley County.
• Recent development includes Tamarack Ski Resort, new homes, roads, etc.
• Potential development includes several active conditional use permits.
Conditions that may affect the risks and vulnerabilities of Valley County include economic
recession due to being reliant on the tourism industry. There is also a large number of second
home ownership (78%).Therefore, making a large issue,the safety and security of those who are
renting short-term rentals. Other issues include new roads to subdivisions and natural drainages
being diverted or filled causing water issues.
3.7 Vegetative Cover
Vegetation in Valley County is a mix of both forestland and rangeland. The largest percentage of
vegetation is forestland; including Douglas Fir, Lodgepole Pine, Subalpine species, Ponderosa
Pine, Warm Mesic Shrub, Herbaceous Burn, Mountain Big Sagebrush, Basin and Wyoming Big
Sagebrush,as well as various other forest species of trees and shrubs. Douglas-Fir is the dominant
tree species with 23.2%of the trees being from the Douglas-Fir species.
Ample precipitation and soil conditions result in a relatively well vegetated ecosystem. As the
areas of ample precipitation increase so does the abundance of conifer species, subalpine forest
areas are seen in the highest elevations where precipitation and elevation provide more moisture
during the growing season.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-14
Much of Valley County's vegetation and forestland is used in their local economy through timber
production, livestock grazing, wildlife habitat, recreation, and watershed protection.
Table 3.3 Vegetative Cover Types
Cover Type Acres Percent of Area
Open Water 37219 1.55
Perennial Snow/Ice 21 >0.01
Developed,Open Space 7745 0.324
Developed,Low Intensity 2365 0.098
Developed,Medium Intensity 475 0.019
Developed,High Intensity 68 0.002
Barren Land 2669 0.111
_Deciduous Forest 3986 0.166
Evergreen Forest 1118195 46.7
Mixed Forest 3041 0.127
Shrub/Scrub 701632 29.3
Herbaceous 452474 18.9
Hay/Pasture 10954 0.458
Cultivated Crops 1162 0.048
Woody Wetlands 35856 1.50
The County has a total area of 3,734 square miles of which about 1.5%, or 56 square miles, of the
county is water. The federal government owns nearly 88% of the land in the County. Included in
the federally owned and protected lands are three national forests; Boise National Forest,
Payette National Forest, and Salmon National Forest. Recreation and tourism are important
components of the local economy. At various times of the year the amount of people in the
County increases due to tourists and residents of nearby counties seeking recreational
opportunities.
The majority of private lands in the County are situated along Long Valley, Round Valley, and High
Valley on the western edge of the County. Another smaller portion of private land is located in
the back-country areas around Yellow Pine and the South Fork of the Salmon River.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-15
Figure 3.2 Land Cover Classification from the 2016 National Land Cover Dotoset
V.
i < Vallee Connty, Idaho Land Cover Classification / "ell
.y it .y- t Vli i .A f
1 n.
Land Cover Classifications
y =open Water
f ei .r J •'y' : �1i C —7 rerenrual snownce
Developed,open spa«
' - • • '.. Developed,Low Intensity.
- •aR �" -Developed,Medium Intensity
1V
Developed,High Intensity
. Barren Land
y � ' `t 1— i� T}�' •Pf '� �.` -Deciduous Forest
t
-1
_x _Evergreen Farm
,.n
Mixed Forest �tk
Shrub/Scrub
Herbaceous
Hay/Pasture
yr'- � i'+yw,4 �; I" _Cultivated Crops
7 t i 7 Woody Wetlands
• ' 1 1. ®F—g—llcrbaccuu.Wcdand,.
Source:Mulit-Resolution Land Characteristics Consortium,U.S.Census Bureau) ~ to
Projection:NAD 1983 State Plane Idaho West �.
Elevations in Valley County range from 2,811 feet above sea level to 9,692 feet in the north
central portion of the County. Ten percent of the population works in the agricultural, fishing,
and hunting/forestry industry, with five percent working in wood products. Recreation,
accommodations, and food services make up seven percent of the work force.
From the 1900's to 2001 logging was a major part of the economy. Numerous private mills sprang
up in the 1900's. Boise Cascade Corporation's sawmill was the last to close; it ran its last log
through the mill in October of 1977 and finally closed the mill in May of 2001.
In 1948 Cascade Dam was completed on the Payette River for retention of water for irrigation
and flood control. The building of this dam covered some of the best farming and ranch land in
the valley, thus reducing the amount of agricultural land available. The reservoir was renamed
Lake Cascade and has become a renowned fishing and recreational lake in the County. The city
of McCall, situated north of Lake Cascade along the Payette River, is now an all-season tourist
destination for outdoor recreation. Especially popular is the Winter Carnival held in McCall each
winter.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-16
There are four basic designations for land use in Valley County, they are; rural, city/town, village
(unincorporated communities), and tourist hubs.
3.8 Hydrology
Surface Water in Valley County consists of streams, rivers, and lakes. There are numerous lakes
in Valley County, which are fed by the Payette River and the North and Middle Forks of the
Salmon River, as well as various streams. Both the Middle Fork and the South Fork of the Salmon
River also run through the County, as well as the Johnson River.
In the Cascade area the recharge of surface water is mainly through precipitation and spring
snowmelt. Spring temperatures remain cool and this normally leads to small evapotranspiration
rates which also lead to infiltrating waters that recharge the aquifers.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-17
4 Risk Assessment
4.1 Overview
Risk assessments are key in aiding mitigation. A risk assessment identifies and characterizes
hazards and the potential impacts to the county and its jurisdictions should a disaster occur. By
undertaking a comprehensive risk assessment, local officials and decision makers can compare,
evaluate, and prioritize mitigation actions to most effectively and efficiently reduce loss of life
and property. The risk assessment also provides for more effective land use through zoning and
planning, ultimately allowing for resilient growth across the jurisdictions.
Hazards that pose a risk to the county and its jurisdictions are many and varied, and this plan
attempts to profile those that pose the most significant threat to the populations, infrastructure,
and built environment. In Valley County, these hazards include: earthquakes, floods, severe
weather, landslides, and wildfire. Note, however, that this is not an exhaustive list, and that
additional hazard profiles should be drafted and appended to the plan when necessary.
Specifically, the Idaho Office of Emergency Management, together with FEMA Region 10 and the
Idaho Geologic Survey, developed a special report for Valley County in December 2017 entitled
"A Risk Assessment Database Summary for Valley County and the Incorporated Cities of Cascade,
Donnelly and McCall". This report is provided in Appendix G.
4.1.2 Plan Requirements & Regulations
The 2019 plan update developed the risk assessment consistent with the process and
requirements detailed by FEMA. This section satisfies the following requirements:
• 44 CFR §201.6(c) —The plan shall include the following:
• (2) -A risk assessment that provides the factual basis for activities proposed in the
strategy to reduce losses from identified hazards. Local risk assessments must
provide sufficient information to enable the jurisdiction to identify and prioritize
appropriate mitigation actions to reduce losses from identified hazards. The risk
assessment shall include:
• (i) — A description of the type, location, and extent of all-natural hazards
that can affect the jurisdiction. The plan shall include information on
previous occurrences of hazard events and on the probability of future
hazard events.
• (ii) — A description of the jurisdiction's vulnerability to the hazards
described in paragraph (c)(2)(i) of this section. This description shall
include an overall summary of each hazard and its impact on the
community. All plans approved after October 1, 2008 must also address
NFIP insured structures that have been repetitively damaged by floods.
The plan should describe vulnerability in terms of:
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-18
(A) The types and numbers of existing and future buildings,
infrastructure, and critical facilities located in the identified hazard
areas;
(B) An estimate of the potential dollar losses to vulnerable
structures identified in paragraph (c)(2)(ii)(A) this section and a
description of the methodology used to prepare the estimate.
(C) Providing a general description of land uses and development
trends within the community so that mitigation options can be
considered in future land use decisions.
• (iii)—For multi-jurisdictional plans,the risk assessment section must assess
each jurisdiction's risks where they vary from the risks facing the entire
planning area.
4.2 Earthquake
4.2.1 Hazard Vulnerability& Risk Summary
Using the estimates derived from FEMA's HAZUS model, a standardized methodology for
estimating potential losses from earthquakes, an estimated 58 buildings would be at least
moderately damaged and the total economic loss estimated for an earthquake equivalent to a
100-year event would cost Valley County$9,575,027. According to the 2018 Idaho State hazard
Mitigation Plan (HMP), Valley County has 314 Critical facilities but less than 1% of those are in
the Earthquake Area. The total number of building in 2018 in Valley County was 11,335 with a
replacement cost value (RCV) of$3,764,632,000.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-19
Figure 4.1 Valley Country Earthquake Hazard Map
Earthquake Hazard
A
0 5 10 20 Miles
16 B
EM Valley County
Earthquake
g Acceleration
Value
0-9:Low
9-17:Medium
0 >17:High
l�Places
I
I
4.2.2 Hazard Description
An earthquake is the trembling of the ground resulting from the sudden shifting of rock beneath
the earth's crust. Earthquakes are caused by a sudden slip on a fault, or the breaks and fractures
where the earth's crust on either side has moved relative to the other. Such events cause waves
of energy to radiate from the point of release, and cause the movement, shaking, and rolling felt
during an earthquake event.The durations of earthquakes are normally limited to a few seconds
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-20
but can last for minutes in length.The resultant waves can travel hundreds to thousands of miles,
causing damage to locations far from the epicenter.
Movements associated with earthquakes are classified as a foreshock, main shock, or aftershock.
Foreshocks occur before the main shock, which is defined as the actual onset of the earthquake,
while aftershocks occur after the onset of the main shock. Main shocks can occur immediately
following foreshocks or can occur days to months after. Likewise, aftershocks can occur
immediately following the main shock or much later. Aftershocks can be large, damaging events
that further impact an area.
Earthquakes can be particularly damaging in Idaho. Geological and seismological studies show
that earthquakes are likely in several active zones in Idaho and adjacent states.The state itself is
ranked fifth in the nation for earthquake hazard, with only California, Nevada, Utah, and Alaska
ranked higher. Idaho has experienced several damaging earthquakes over the past 100 years,
with two notable events occurring in 1959 (Hebgen lake earthquake) and 1983 (Borah Peak
earthquake). Both caused fatalities and millions in dollars in damage across the state.
Earthquakes can cause significant damage to structures, and can cause injury, loss of life, and
impact the socioeconomic functioning of affected communities.The following influence damages
associated with earthquakes:
• Seismic Activity — Varying between earthquake events, seismic activity ranges from
localized, small points of energy release to widespread, large, and destructive releases.
The length of earthquakes ranges from brief (a few seconds) to more than a minute.
Earthquake epicenters can be shallow or deep, with depth influencing the type of seismic
waves felt and their destructive potential.
• Geology & Soil Types — The underlying geology and soil type of an area influences the
propagation of the seismic waves and their impact. Stable geologic types (such as solid
bedrock)are less prone to destructive shaking than geologic types that are more unstable,
such as fill soils. The siting of structures and communities strongly influences the nature
and extent of earthquake damages.
• Development & Development Quality —The type and quality of development is vital in
considering earthquake damages to a county or community. Isolated, small earthquakes
in densely populated areas or areas with unreinforced masonry can be more devastating
than a high-magnitude earthquake in a remote location or in an area with earthquake-
appropriate building codes.
• Time of Day —Time of day determines the distribution of the population, and therefore
the distribution of injuries and fatalities. Residences house more people in the evening
and night, whereas business centers, schools, and other day-use locations house more
people in the morning and afternoon. Day of the week is also important to consider, as
people's work, travel, and activities vary between weekdays and weekends.
Secondary impacts,such as landslides,can also result from shaking.The following describes some
of the types of damage stemming from an earthquake:
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-21
• Shaking—Ranging from minor to severe, minor shaking can cause objects to fall and other
minimal damage, while severe shaking causing large structures to collapse and extensive
damages. Unreinforced masonry and wood frame structures are most prone to
earthquake damage. Non-structural falling hazards include loose or poorly secured
objects,and include objects such as bookcases,wall hangings, and building facades.These
objects can cause additional structural damage, and injury or fatality. Shaking can also
rupture dams, destroy power and telephone lines, gas, sewer, or water mains, and can
cause fires or other hazards that impair response and recovery efforts.
• Ground Displacement — The most dramatic visual evidence of an earthquake, ground
displacement often occurs along a fault line. Ground can be thrust upward, subside, or
move laterally given a severe enough earthquake. Damages from ground displacement is
normally limited to utility lines and transportation infrastructure, though structures
situated on fault lines can also be impacted.
• Landslides &Avalanches —Earthquakes often cause cascading hazards. Given conducive
meteorological conditions (such as in-place snowpack or recent rain events), earthquakes
can cause rock falls, landslides, or debris flows.
• Liquefaction & Subsidence — Liquefaction occurs when the energy released from an
earthquake weakens the strength and stiffness of a soil, while subsidence is the caving in
or sinking of an area. Fill and saturated soils are notably at risk of liquefaction, which can
result in widespread structural damage. Liquefaction and subsidence can also impact
surface and subsurface water flow, which can impair individual or community wells as
well as cause flash flood-like water flow. These impacts can likewise impact septic
systems, which create additional health risks.
• Seiches — Oscillating waves in an enclosed body of water caused by an earthquake are
termed seiches. Although not commonly damaging given their rarity, Seiches can
resemble tsunami characteristics and destructive potential. Shoreline development along
a lake in earthquake-prone areas are at risk of damage,as well as dams or flood mitigation
structures such as levees. Seiches can also cause hydrothermal explosions.
Earthquakes are measured in both magnitude and intensity, where magnitude refers to the
energy released at the source of the earthquake, and intensity refers to the strength of shaking
produced by the earthquake at a discrete location. Where magnitude is derived from
seismograph measurements, the effects on people, structure, and the environment determine
intensity.
The most common measure of magnitude is the Richter scale. The Richter scale measures
magnitude as a function of the amplitude of waves recorded by seismographs, with adjustments
to account for variations in distances between recording stations and the epicenter. Magnitude
is expressed in whole numbers and decimals,and is measured logarithmically;that is, each whole
number step corresponds to the release of about 31 times more energy than the preceding whole
number.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-22
The most common measure of intensity is the Modified Mercalli Intensity(MMI) Scale.The scale,
composed of increasing levels of intensity that range from imperceptible shaking to catastrophic
destruction, is designated by Roman numerals. The scale does not have a mathematical basis;
instead, it is an arbitrary ranking based on observed effects.
Table 4.1 Modified Mercalli Intensity Scale
Intensity Description Approximate Magnitude
Not felt except by a very few under especially favorable conditions. 1 to 2
II Felt only by a few persons at rest, especially on upper floors of 2 to 3
buildings.
Felt quite noticeably by persons indoors,especially on upper floors of
III buildings.Many people do not recognize it as an earthquake.Standing 3 to 4
motor cars may rock slightly. Vibrations similar to the passing of a
truck. Duration estimated.
Felt indoors by many,outdoors by few during the day.At night,some
IV awakened. Dishes, windows, doors disturbed; walls make cracking 4
sound. Sensation like heavy truck striking building. Standing motor
cars rocked noticeably.
Felt by nearly everyone; many awakened. Some dishes, windows
V 4 to 5
broken. Unstable objects overturned. Pendulum clocks may stop.
VI Felt by all, many frightened. Some heavy furniture moved; a few S to 6
instances of fallen plaster. Damage slight.
Damage negligible in buildings of good design and construction;slight
VII to moderate in well-built ordinary structures;considerable damage in 6
poorly built or badly designed structures;some chimneys broken.
Damage slight in specially designed structures; considerable damage
VIII in ordinary substantial buildings with partial collapse. Damage great 6 to 7
in poorly built structures. Fall of chimneys, factory stacks, columns,
monuments,walls. Heavy furniture overturned.
Damage considerable in specially designed structures; well-designed
ix frame structures thrown out of plumb. Damage great in substantial 7
buildings,with partial collapse. Buildings shifted off foundations.
4.2.3 Hazard Occurrence, Location & Extent
The severity or magnitude of an earthquake is measured on the Richter Scale (generally ranging
from 2 to 10) with significant damage expected from seismic activity registering a 5.0 or higher.
From 1900 to 1985 there were 18 earthquakes with a magnitude of 4.5 or higher. The 2018 Idaho
State HMP identifies three of the larger earthquakes impacting Valley County as occurring in
1927, 1977, and 2005 (See Table 3.2 for an expanded description).
Table 4.2 Notable Earthquake Occurrences, Valley County(per the 2018 Idaho State HMP)
Date Magnitude Description Epicenter
1927 5 On Idaho-Oregon border,west of Cascade Connor Creek
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-23
1977 4.5 Drywall,foundations cracked;ceiling beams separated Cascade
2005 4 Between September and December 2005,thousands of small,very shallow Alpha Swarm
earthquakes occurred
4.2.3.1 City of Cascade
City of Cascade is exposed to similar earthquake threat as the greater planning area.
4.2.3.2 City of Donnelly
City of Donnelly is exposed to similar earthquake threat as the greater planning area.
4.2.3.3 City of McCall
City of McCall is exposed to similar earthquake threat as the greater planning area.
4.2.4 Future Probability Figure 4.2 USGS Seismic Forecast
Although predicting exact future occurrences
of earthquakes is impossible, all of Valley N
County is characterized by a two percent
chance over the next 50 years to exceed a VI
on the MMI Scale (shown above). Should any
of the participating jurisdictions experience ? - f m
- Chance of daage
shaking from an earthquake, it will likely be a '" j -T —__ L
O�nva 10%—12%
result of a regional event. Furthermore, the , , /------- _ 2%-5%
,%-2%
USGS now produces one-year seismic hazard
forecasts for both shaking intensity and
damage. -
4.3 Flood "~
Ba.,d o„the presotoptioo
4.3.1 Hazard Vulnerability & Risk Summary a 1hgoak-occur mat-1h
Valley County's population and structures are exposed moderate to high flood risk.The majority
of the planning area's overall risk to floods is low as is the unincorporated area. Flooding within
Valley County occurs on an annual basis and is considered the "most serious and costly natural
hazard" affecting the area. Some common causes of flooding include heavy rainfall, urban storm
water overflow, rapid snowmelt, rising ground-water, riverine ice jams, fluctuating lake levels,
and alluvial fan flooding. However,the three main flooding concerns for Valley County stem from
flash flooding, river flooding, and dam failures. New FEMA FIRM maps were completed and
adopted by the jurisdictions in 2019, but this was after the risk assessment for this report was
completed. Thus, this risk assessment is based on the best available data just prior to that. The
University of Idaho and our Georgetown University affiliates will work with the county and the
IOEM to provide an updated flood risk assessment separate from this HMP. Each jurisdiction has
an updated floodplain ordinance, adopted just prior to or after the new FIRM maps that controls
development within the floodplain zones delineated in the new FIRM maps.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-24
Figure 4.3 Valley County Flood Hazard Map
Flood Hazard
0 5 10 20 Miles
F _}__....
I
Yellow Pine
4
all
Y V A L L E Y
nnelly
O Places
0 Valley County
Flood
1%annual chance of flooding:High
0.2%annual chance of flooding:Medium
arcade Below 0.2%annual chance of flooding:Low
I
j
I
l
miths Ferry
LI
4.3.2 Hazard Description
Thousands of floods occur each year, making it one of the most common hazards in all 50 states.
Flooding is often a natural process where excess water overflows a waterway and inundates
adjacent land (termed the floodplain). Flooding results from several different causes, including
significant precipitation or snowmelt events, ice and debris jams on waterways, and structural
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-25
failures or breakages. An understanding of the role of atmospheric systems, the natural
environment, and the built environment is key to understanding and mitigating flood-related
losses.
Floods kill an average of 150 people per year nationwide, with most injuries and deaths occurring
when people are swept away by flood currents. Floods also cause significant economic losses,
with most damage resulting from the inundation of property by sediment-laden water. Faster
moving floodwater can wash buildings off their foundations and sweep vehicles downstream.
Pipelines, bridges, and other infrastructure are also at risk, and high water combined with flood
debris can result in infrastructure damage and loss of use. Effects from flooding can also include
floating fuel tanks, inundation of subdivisions, road washouts, and basement flooding—all of
which can result in extensive damage. These damages predominately occur in the floodplain,
which are those areas the excess water inundates.
Floodplains range from narrow and confined channels to wide and flat areas depending on the
topographical features near the waterway. Floodplain characteristics contribute to the speed and
characteristics of flooding. In narrow and confined channels, flooding is normally rapid but short
duration, with deep and rapid floodwaters. In contrast, flooding can be relatively slow, shallow,
and last for long periods in flat floodplains. Many factors influence the size of a flood, such as the
size of the catchment area or watershed,topographic characteristics such as mountainous slopes
and elevation changes, land-use characteristics or structural modifications, and the
characteristics of meteorological events.
Natural flood events are often classified into the following:
• Riverine Flood — Perceived as the classic 'flood' event, riverine flooding occurs when the
floodplain (the lowland areas adjacent to rivers and lakes)is inundated with water, usually
caused by a weather system with prolonged or intense rainfall. Large-scale weather
systems can cause both large and small rivers and streams to flood, notably if prolonged
or intense rainfall is distributed over a wide area. Localized weather systems can also
produce flooding, though normally such systems impact smaller rivers and streams.
Riverine flooding can also result from snowmelt, which in turn can be a result of above-
freezing temperatures and rain-on-snow events.
• Flash Flood—Characterized by a rapid rise in surface water levels,flash floods often have
a high flow velocity and are capable of carrying large amounts of debris, such as trees and
boulders, making flash flood events capable of extensive damage. Intense rainfall events
in areas with steep watershed or stream gradients often results in flash floods, notable in
the steep mountainous terrain found across Idaho. Dam or levee failure, wildfire, debris
or ice jam breakage, and rapid snowmelt can cause flash floods, as all can release large
volumes of stored water in a short period. Urban development also drives flash floods
due to an increase of impervious surfaces, inadequate or failing drainage systems, and
the channelization of rivers and streams.
• Alluvial Fan Flood —This type of flood occurs most commonly in the alluvial fans created
by the meandering of streams and rivers and are the most prevalent flood type in arid
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-26
regions. Alluvial fans pose a significant flood risk due to active erosion, sedimentation,
deposition, and unpredictability of flow paths. As the floodway fills with deposited
sediment, the river or stream can quickly reach overbank flood stages and channelize a
new floodway. Human activities often exacerbate flooding and erosion on alluvial fans by
altering flow patterns and constructing impervious surfaces with the potential to carry
high-velocity flows to lower portions of the fan.
• Ice & Debris Jam Flood —Similar in characteristics to riverine floods and flash floods, ice
jams or debris can accumulate at obstruction points on a stream or river and restrict water
flow upstream,causing the banks behind the obstruction to inundate.These jams can also
break, resulting in a sudden large discharge of stored water to the downstream reaches.
The formation of these jams is dependent on meteorological and other physical
conditions, often occurring at natural channel constrictions and shallow points along the
channel, where water is able to freeze. Human-built structures such as bridges can also
act as obstruction points. Ice and debris jam flooding most often occurs in the fall,winter,
and spring due to the formation and loss of ice. Flood damages from ice and debris jam
breakages often exceed that caused by riverine flooding, as water elevations are higher
and more unpredictable and floodwaters can carry debris.
Given the climatological characteristics of spring snowmelt, stream channels are defined by the
long-term average spring high flow. Small flow peaks exceeding this level and the stream's
occupation of the floodplain are relatively common events; however, above-average snowpack
or above-average early-year temperatures regimes (e.g., prolonged warmth)can generate runoff
volumes significantly greater than the conveyance ability of stream channels. Such events can
result in widespread damages and losses, as snowmelt-driven floods tend to last for longer
periods than other meteorologically-driven floods (from a period of several days to several
weeks).
However, floods resulting from rainfall on frozen ground or rainfall associated with warm,
regional frontal system that melts low and intermediate-altitude snow can be the most severe
flood events. Rain-on-snow events quickly introduce large quantities of water into the stream
channel system, overloading its capacity. These events can cause a swift rise in floodwaters,
which can damage property and interrupt socioeconomic activity in downstream floodplains. In
general, these flood events can be predicted 24 to 72 hours in advance.
The most commonly reported flood magnitude is the "base flood", or the flood magnitude with
a one-percent chance of being equaled or exceeded in any given year (it was previously
commonly referred to as the 100-year flood). It is important to note that this flood magnitude is
statistically independent and can occur in consecutive years or within the same year. The
floodplain pertaining to the base flood is often delineated and mapped to identify areas with
significant flood risk; other statistical frequencies can also notate flood probabilities
corresponding to a certain degree of risk (e.g., the 0.2 percent annual chance flood, also known
as the 500-year flood). The base flood is often referred to as the regulatory flood, and the
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-27
corresponding floodplain is often termed the regulatory floodplain given the state and federal
policies (e.g., the National Flood Insurance Program (NFIP) that regulate development within its
area.
It is important to note the difference between the regulatory floodplain and the physical
floodplain. The regulatory floodplain corresponds to an area delineated by FEMA where specific
regulations apply. The regulatory floodplain is more limited than the physical floodplain, as the
regulatory floodplain is delineated through surveys and modeling that cannot account for all
waterways and waterbodies in the county. FEMA-mapped floodplain shows three regulatory
flood zones:
• Zone X — Areas identified in a community's Flood Insurance Study (FIS) as areas of
moderate or minimal hazard from the principal source of flood in the area. However,
buildings in these zones are at risk of flooding if severe, concentrated rainfall is coupled
with inadequate local drainage systems. Flood insurance is available in participating
communities but is not required by regulation in these zones.
• Zone A — Areas at risk to inundation by the one-percent annual chance flood event.
Mandatory flood insurance purchase requirements apply. However, detailed hydraulic
analyses have not been performed, and no base flood elevations (BFEs) or flood depths
are shown.
• Zone AE — Areas subject to inundation by the one-percent annual chance flood event
determined by detailed methods. Mandatory flood insurance purchase requirements
apply. BFEs are shown within these zones.
4.3.3 Hazard Occurrence, Location, Extent
Per the 2018 Idaho State HMP, participation in the NFIP is based on an agreement between a
local government and the Federal Government that states if a community will adopt and enforce
a floodplain management ordinance to reduce future flood risks to construction and other
ground disturbing activities in mapped Special Flood Hazard Areas (SFHA), the Federal
Government will make flood insurance available within the community as a financial protection
against flood losses. While Valley County has only 2.0% of its total area (land and water)
susceptible to a 1% rated flooding event, it does maintain more than 3%of its population within
SFHA. Valley County also carries a state replacement cost value (RCV)of facilities within the SFHA
at $3,764,632,000.
Valley County had 48 National Flood Insurance Program (NFIP) policies with 1 claims and total
loss payment of$0. As defined by NFIP standards, Valley County had a total of 0 repetitive loss
(RL) designated properties.
Table 4.3 NFIP Statistics for Valley County
Community NFIP CRS Flood Claims Repetitive Loss Policies Insurance In- Written Premium
Name Status Status Claims Paid Properties In-force force Whole In-force
Valley County Active NA 1 0 0 48
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-28
Table 4.4 Historic Flood Occurrences
Date Type Declaration Location Casualties Losses(Total for Idaho)
Jan. 1997 Flood Northern and Valley $19,404,105 in public
Central Floods(DR- County, assistance,
1154) Statewide
Apr. 14,2002 Flash Flood - Valley&Boise
Counties
Jun.2010 Flood& Northern State Valley and Preliminary damage
Brown's Pond Flooding(DR-1927) other counties estimates to roads over
Dam Failure $5 million
Mar.2017 Severe Severe Storms, Valley and $10.5 million in damages
weather, Flooding, Landslides other counties
flood and Mudslides(DR-
4313)
4.3.3.1 City of Cascade
City of Cascade is exposed to a higher flooding threat than the greater planning area.
4.3.3.2 City of Donnelly
City of Donnelly is exposed to a higher flooding threat than the greater planning area.
4.3.3.3 City of McCall
City of McCall is exposed to higher flooding threat than the greater planning area.
4.3.4 Future Probability
The probability of future floods across the multi-jurisdictional planning area is low to moderate.
Low-magnitude flood events are expected to occur multiple times per year. The impacts of these
events are slight and will likely amount to minor property damage or temporary traffic
issues. This needs to be reevaluated periodically due to erratic national weather patterns taking
place in the last five years likely due to climate change.
4.4 Severe Weather
4.4.1 Hazard Vulnerability & Risk Summary
The plan update did not identify any specific jurisdictions or special districts with significant
deviation from the planning area's overall risk to severe weather. Valley County and its
jurisdictions are vulnerable to severe weather (such as winter storms, lightning, or tornados) in
a range of low to high in magnitude (see Figures below). The overall State HMP designation for
Valley County exposure to severe weather is high.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-29
Figure 4.4 Valley County Winter Weather Hazard Map
Winter Weather Hazard
0 5 10 20 Mdes
loYellow Pine
ia'McCall
V A L L E Y
: Donnelly
O Vatley County
Winter Weather Score
Value
0-145 Low
145.245:Medium
1245:HqI
0 Places
Cascade
miths Ferry
Valley County Multi-Jurisdictional Hazard Mitigation Plan II-30
Figure 4.5 Valley County Lightening Hazard Mop
Lightning Hazard
A
0 5 10 20 fv6les
OYellow Pine
1'J�MCcall
`1 ,4 L L E Y
_flannelly
Valley County
Lightning Score
Value
0-25:Low
25-45:Medium
>45:High
tCascade Places
miths Ferry Ir
_ i
Valley County Multi-Jurisdictional Hazard Mitigation Plan II-31
Figure 4.6 Valley County Tornado Hazard Map
Tornado Hazard
A
0 5 10 20 Mies
fir'/Yellow Pine
A L L E Y
4bonneiIv
0 Valley County
Tornado Score
Value
0-39:Low
39-73:Medium
>73:High
tyCascade Places
t
1
t {
f miths Ferry
4.4.2 Hazard Description
Severe weather is a serious hazard across Idaho,occurring with regular frequency and oftentimes
damaging or disrupting intensity. Although the term "severe weather' is nebulous, the plan
defines severe weather as any meteorological phenomenon with the potential to cause harm or
injury to individuals, the built environment, or economic sectors. Such phenomena include (but
are not limited to) high winds, lightning, tornados, winter storms, extreme heat and cold
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-32
temperatures, hydrometeorological events (e.g., hail and heavy rain), and thunderstorms. Often
these events are coincidental, making delineation difficult.
• Extreme Temperature —Commonly referred to as a heat wave, extreme heat is a period
of significant above-normal temperatures in a locality. Urban development amplifies
extreme heat effects due the heat island effect. Extreme heat impacts human health
through heat exhaustion, sunstroke, and heat cramps. Opposite extreme heat is extreme
cold, which is classified as a period of significant below-normal temperatures in a locality.
Winds of 10 mph or greater can amplify extreme cold impacts.Advisories are issued when
wind chill temperatures reach -20 degrees F or lower with winds of 10 mph or higher for
one hour or more. Similar to extreme heat, extreme cold is of greatest concern under
persistence over an extended period. Extreme cold can be associated with the formation
of ice and freezing which can result in flooding.
• Hail — Defined as precipitation in the form of irregular pellets or balls of ice more than 5
mm in diameter falling from a cumulonimbus cloud.Created by the vertical cycle of a wind
and water in a storm mass (or cell), the ice accumulation that forms hail can reach sizes
up to four inches in diameter (though hail of three-fourths of an inch or greater is
sufficient to classify a thunderstorm as severe). Nationally, hail causes approximately $1
billion in property and crop damage annually, as peak activity coincides with peak
agricultural seasons. Severe hailstorms also cause considerable damage to buildings and
automobiles, but rarely result in loss of life.
• Lightning — A product of the violent movement of air within a thunderstorm, the NWS
defines lightning as "visible electrical discharge produced by a thunderstorm." The
discharge can occur within or between clouds, between clouds and air, between clouds
and the earth's surface, and between the earth's surface and clouds. Lightning can be
over five miles in length, generate temperatures above 50,000 degrees F, and carry
50,000 volts of electrical potential. Lightning strikes can be deadly, notably direct strikes
where the person or structure is the direct path for lightning conduction to the ground.
Side strikes are like a direct strike but diverts to an alternate path from the initial
grounding point. Conducted strikes occur when the electrical current from the initial
grounding point through a conductive material (such as electrical and electronic
equipment). Lightning can also induce secondary discharges by altering the electrical
potential between adjacent structures, through the earth's surface, and in electrical
equipment.
• Straight-Line Wind—A term used to distinguish between non-rotating and rotating winds
(i.e., tornados). Generated by thunderstorms, straight-line winds reach speeds more than
100 miles per hour (mph). The NWS defines 'high winds' as sustained wind speeds of 40
mph or greater over a one-hour period or longer, or winds of 58 mph or greater over any
period.Windstorms affect areas with significant tree stands,as well as areas with exposed
property, major infrastructure, and aboveground utility lines. Of note are downbursts
(also known as microbursts), which are a straight-line wind and are small areas of rapidly
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-33
descending rain and rain-cooled air beneath a thunderstorm with potential wind
velocities equal to that of a strong tornado.
• Thunderstorms — Produced when unstable atmospheric conditions exist, and warm,
moist air forced upward condenses to form cumulonimbus clouds. Most common in the
spring and summer months during the afternoon and evening hours, thunderstorms
persist an average of 10 to 20 minutes (though can persist much longer), during which
they can produce heavy rain, hail, lightning, strong winds, and tornadoes. Thunderstorm
types include dry thunderstorms, pulse severe thunderstorms, severe thunderstorms,
and supercell thunderstorms. Dry thunderstorms are characterized by 'dry lightning',
where lightning is observed but little to no precipitation reaches the earth's surface due
to evaporation into the dry air beneath the storm cell. Pulse severe thunderstorms are
single-cell thunderstorms that produce brief periods of severe weather, such as a
tornado, winds of at least 58 mph, and/or at least three-fourths of an inch hail size. A
severe thunderstorm is one in which winds reach at least 40 mph and/or hail of at least
one-half inch in size. Finally, a supercell thunderstorm is the most dangerous. These
storms produce downbursts, large hail, and long-lived violent tornados.
• Tornadoes —The most concentrated and violent storms produced by the atmosphere. A
tornado is a column (also known as a vortex) of air composed of rotating wind and strong
vertical motion. Wind speeds within the vortex range between 40 and 300 mph, and the
vortex itself can travel at speeds up to 70 mph over a distance between 10 and 200 miles
(although shorter distances have been reported).Though damages are generally confined
to a narrow path, tornadoes can devastate a large distance, and a single storm can
produce multiple tornados.
• Winter Storms—Characterized by low/freezing temperatures, blowing snow,and ice. Like
all severe storms, winter storms range in size, duration, and intensity, with potential to
impact both large and localized areas. Severe winter storms deposit four or more inches
of snow during a 12-hour period, or six inches during a 24-hour period.To be classified as
a blizzard, winds must exceed 35 mph with temperatures below 20 degrees F. Particularly
damaging are ice storms, characterized by cold rain freezing immediately on contact with
a surface. In general, the principal hazards associated with severe winter storms are
snow/ice accumulation, extreme cold, and reduction of visibility. Such storms can also
disrupt transportation, power and communication lines, and halt everyday activities.
4.4.3 Hazard Occurrence, Location & Extent
According to the 2018 Idaho State HMP,Valley County has 0%of population located in the Severe
Storm Hazard Area. However,the same plan identifies Valley county risk exposure to this hazard
as high.
4.4.3.1 City of Cascade
City of Cascade is exposed to similar severe weather threat as the greater planning area.
4.4.3.2 City of Donnelly
City of Donnelly is exposed to similar severe weather as the greater planning area.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-34
4.4.3.2 City of McCall
City of McCall is exposed to similar severe weather the greater planning area.
4.4.4 Future Probability
All of jurisdictions included in this plan are at risk to severe weather, and there is a certain high
probability of continued severe weather occurrence within the planning area. Future climate
change impacts could lead to more severe weather in the area which could force-multiply the
primary hazards as well as potential secondary and tertiary ones. As mentioned in the flooding
section of this document, increasing temperatures will lead to the melting of snow and ice in the
mountain areas which will contribute to increased flooding disasters. According to the EPA, if
there is less frequency of storms then drought conditions could occur which can lead to wildfires
as well as failed agriculture.
4.5 Landslide
4.5.1 Hazard Vulnerability & Risk Summary
Valley County and its jurisdictions' entire population and structures have a high risk of exposure
to landslides. The plan update did not identify any specific jurisdictions or special districts with
significant deviation from the planning area's overall risk to landslides.The backcountry of Valley
County, which is susceptible to landslides and mudslides, hosts all the geological factors
necessary to also induce chronic snow avalanches.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-35
Figure 4.7 Valley County Landslide Hazard Map
Landslide Hazard
A
0 5 10 20 Wes
0 Valley County
Landslide Score
VALUE
77 0-24: Low
24-60:Medium
>60:High
f Cascade Places
L�rFl19Ci'1i Ferry
4.5.2 Hazard Description
Defined by the U.S. Geological Survey as "movement of a mass of rock, debris, or earth down a
slope, landslides are a type of mass wasting, which denotes any down-slope movement of soil
and rock under the direct influence of gravity." Landslides and mudslides are often triggered by
preceding meteorological or human caused events such as heavy rainfall or excavation, mining
and deforestation. Landslides occur on an annual basis in Valley County but are often in remote
areas limiting the damage to service roads and utility infrastructure; however, these mass waste
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-36
sites have a significant ecological impact and are estimated to cost tens of thousands of dollars
in damages every year.Although gravity acting on an over-steepened slope is the primary reason
for a landslide, there are other contributing factors:
Erosion by rivers, glaciers, or ocean waves create over steepened slopes;
Rock and soil slopes are weakened through saturation by snowmelt or heavy rains;
Earthquakes create stresses that make weak slopes fail;
• Earthquakes of magnitude 4.0 and greater have been known to trigger landslides;
Volcanic eruptions produce loose ash deposits, heavy rain, and debris flows;
Excess weight from accumulation of rain or snow, stockpiling of rock or ore, from waste;
Piles, or from man-made structures may stress weak slopes to failure and other
structures; and
Unsustainable deforestation or other loss of vegetative cover can contribute to landslides.
4.5.3 Hazard Occurrence, Location & Extent
Table 4.5 Historic Landslide,State and Federal Declarations
Date Type Declaration Location Casualties Losses
Nov. 1997 Landslide Federal DR-1177 Valley and statewide -
Mar.6, 2017 Landslide, State Disaster Valley - $9 million+
Severe Storms, Proclamation ID-03-2017 County and others
Floods and Federal DR-4313
4.5.3.1 City of Cascade
City of Cascade is exposed to similar landslide threat as the greater planning area.
4.5.3.2 City of Donnelly
City of Donnelly is exposed to similar landslide threat as the greater planning area.
4.5.3.2 City of McCall
City of McCall is exposed to similar landslide threat as the greater planning area.
4.5.4 Future Probability
Long-term climate change may result in an increase in precipitation and ground saturation and a
rise in ground-water level, reducing the shear strength and increasing the weight of the soil.
Additionally, erosion of streams and riverbanks as well as increases seismic activity could
exacerbate the occurrence of landslides. It is advisable to include a hazard overlay in future
ordinance and zoning map updates that put forth specific development standards and criteria for
more specific hazards like landslides as the factors that contribute to landslides are tending to
increase and intensify in the next decade.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-37
4.6 Wildfire
4.6.1 Hazard Vulnerability & Risk Summary
The 2018 Idaho State HMP notes that the hazard of wildfire is one that is significant not only in
Idaho but in many areas of the United States. Wildfires can increase the probability of other
natural disasters, specifically floods and mudflows. Valley County's overall population and
structures are exposed to a range of low to high wildfire risk across the county (See Figure 3.8).
Figure 4.8 Valley County Wildfire Hazard Map
Wildfire Hazard
0 5 10 20 Miles
702
i i e .,'1 ,�► F
s
q ;
sly wai ,} ♦+� {`
i
Fire Regime Group
%3 w• �P _ A
,7 t.1wi,
404,
Ferry yir
Valley County Multi-Jurisdictional Hazard Mitigation Plan II-38
With wildfires growing in severity and intensity throughout the west, this hazard is quickly
becoming one of the costliest types of disasters in terms of damage to property and lives lost,
reaching totals that had previously only been seen from damage associated with flooding, severe
storms, and tropical storms. According to the National Interagency Fire Center, a clear trend has
emerged over the last 30 years showing an increase in the number of wildfires, number of acres
burned, and costs associated with fire suppression all rising, and in some categories,
exponentially. Historically, wildfires were an integral part of regrowth and rejuvenation in
western forest but due encroachment from expanding urban areas, deforestation, a warming
climate, and a shift in federal policy to extinguish every fire, the risks presented from modern-
day wildfires is much greater than it has ever been.
• Wildland-Urban Interface: Within Valley County, over 1.2 million acres have burned from
1948 to 2000 with the average number of fires per year around 200 and the average fire
size around 800 acres, according to the 2004 Valley County Wildland-Urban Interface
Wildfire Mitigation Plan. The distinction of a wildfire being categorized as a natural
occurrence instead of a natural disaster lies in the areas where wildland vegetation meets
urban developments, known as the wildland-urban interface. In addition to the homes
and other structures that lie inside the wildland-urban interface, several utilities have
placed their infrastructure within these boundaries, subsequently increasing the risk and
cost associated with damage from wildfires.
4.6.2 Wildfire Annex
Under agreement, the 2018 Valley County Wildfire Protection Plan acts as the Wildfire Annex to
the Valley County Multi-Jurisdictional Hazard Mitigation Plan. The plan can be found in Appendix
H.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-39
5 Mitigation Strategy
5.1 Overview
The mitigation strategy is a comprehensive effort to reduce or eliminate potential losses from
the hazards identified by the planning team and detailed in the risk assessment (see Risk
Assessment). The goals, objectives, and actions that comprise the strategy were carried forward
from the former plan (with revisions where necessary), with additional goals, objectives, and
actions developed through collaborative effort across the county that included its communities,
various State and Federal agencies, and through public engagement.
5.1.1 Summary of Revisions
Major revisions include:
• Moved the mitigation strategy forward in the plan organization;
• Reviewed and revised goals and objectives;
• Reviewed and revised all mitigation actions to reflect progress to date;
• Updated all mitigation actions with estimated cost, timelines, and potential funding
avenues where possible/applicable;
• Removed mitigation actions no longer relevant or necessary; and
• Included additional mitigation actions.
5.1.2 FEMA Requirements
This section adheres to and fulfills the following regulations:
• 44 CFR §201.6(c)(3) — A mitigation strategy that provides the jurisdiction's blueprint for
reducing the potential losses identified in the risk assessment, based on existing
authorities, policies, programs, and resources, and its ability to expand on and improve
these existing tools.
o (i) —A description of mitigation goals to reduce or avoid long-term vulnerabilities
to the identified hazards.
o (ii) — A section that identifies and analyzes a comprehensive range of specific
mitigation actions and projects being considered to reduce the effects of each
hazard, with emphasis on new and existing buildings and infrastructure. All plans
approved by FEMA after October 1,2008, must also address the jurisdiction's
participation in the NFIP, and continued compliance with NFIP requirements, as
appropriate.
o (iii)—An action plan, describing how the action identified in paragraph (c)(3)(ii) of
this section will be prioritized, implemented, and administered by the local
jurisdiction. Prioritization shall include a special emphasis on the extent to which
benefits are maximized according to cost benefit review of the proposed projects
and their associated costs.
o (iv) —For multijurisdictional plans, there must be identifiable action items specific
to the jurisdiction requesting FEMA approval or credit of the plan.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-40
5.2 Mitigation Strategy Goals
Goals and objectives frame the mitigation strategy and are put forward and adopted by the
planning team at the outset of the planning process. The 2020 plan update revisited and revised
the goals included in the former plan to enhance their cogency and applicability to Valley County
and its incorporated cities. The following seven goals guided the planning process and update of
the mitigation strategy:
1. To minimize the area of land damaged and losses experienced because of hazards where
these risks threaten communities in the county.
2. Prioritize the protection of people, structures, infrastructure,and unique ecosystems that
contribute to our way of life and the sustainability of the local and regional economy.
3. Educate communities about the unique opportunities and challenges of pre- and post-
disaster hazard mitigation, disaster response, and post-disaster recovery.
4. Establish mitigation priorities and develop mitigation strategies.
5. Strategically locate, plan, coordinate, and implement hazard reduction projects with
emphasis on those projects to reduce exposure to multiple hazards.
6. Continue and enhance cooperation, coordination, and capabilities of agencies and
partners within the county.
7. Ensure long-term viability of the county to support successful mitigation, response, and
recovery through human resources.
5.3 Valley County Mitigation Actions & Implementation Plan
The following table shows the specific actions and projects to be implemented over the plan's
five-year life.
Table S.1 Valley County Mitigation Actions and Implementation Plan
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-41
Agency,Valley County Action Items Goals Lead
Cost, & Resources Priority Type
General
Timeline:1 year from completion Planning&
1 Update Emergency Operating 5 6 7 Valley County EM and Cost:$5 of AHMP 000 New Regulatory
Plan ,
Stakeholder agencies Priority:High
Funding and/or Resources:IOEM Preparedness&
Planning section,SHSP Response
Valley County EM and Timeline:2023 New Preparedness&
2 Provide signage for all hazards 5,6 Stakeholder agencies Cost:$5,000 Priority:Med Response
Funding and/or Resources:SHSP
Valley County Economic Timeline:2025 Planning&
Survey and review current committee,Infrastructure Cost:Unknown New Regulatory
3 housing requirements for 7
agencies,County and City Funding and/or Resources: Priority:High
employee housing Preparedness&
officials Unknown
Response
Valley County Economic Timeline:2025 Planning&
Survey and review staffing Regulatory
4 shortages throughout county 3,5,6,7 committee,Infrastructure Cost:Unknown New
employment agencies,County and City Funding and/or Resources: Priority:High preparedness&
officials Unknown
Response
Survey and review staffing Emergency Manager,First Timeline:2025
5 shortages throughout first 7 responder agencies,County and Cost:Unknown New Preparedness&
responder employment City officials Funding and/or Resources: Priority:High Response
Unknown
Extended Power Outage
Lease or build fiber optic
Timeline:5 years
connection out of valley and Valley County,private sector Cost:Not provided
6 within County to augment 5,6,7 partners include Frontier Funding and/or Resources: New
existing WAN services provided Communications,CenturyLink Grant opportunities exist for Priority:Moderate
by third parties. and Spark. critical infrastructure or possible
levy option or fee and bond
Severe Weather
Plan Goals: 1,2,4 Timeline:2022
Inspect Schools and other public Cost:$35,000
Specific:Valley County will Valley County Building
buildings for snow-load Funding and/or Resources: Ongoing Structure&
7 resistance and retrofit when develop methods to mitigate Department,Emergency Apply for a HMA Planning Grant Priority:Low Infrastructure
necessary. the losses due to severe Management to update the seismic section of
weather in the County.
the AHMP.
Plan Goals:1,2,4
Specific:Valley County will
Timeline:2025
$ Surfacing of secondary access develop methods to mitigate Valley County Road&Bridge, Cost:$750,000 Ongoing Structure&
routes for all weather use. Emergency Management Funding and/or Resources: Priority:Moderate Infrastructure
the losses due to severe
Apply for LHTAC Funding
weather in the County.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-42
Plan Goals:2,6,7 Timeline:2030 Planning&
Work with Adams County to Specific:Valley County will Cost:$1 Million Ongoing Regulatory
9 establish an east/west develop methods to mitigate Emergency Management Funding and/or Resources: Priority:Low
emergency evacuation route. the losses due to severe Apply for Federal Highway Preparedness&
weather in the County. Funding Response
Install Portable Digital Message Plan Goals: 1,2,3 Timeline:2025
Specific:Valley County will Cost:$50,000
Boards at the entrance to the Emergency Management,Valley Ongoing Preparedness&
10 develop methods to mitigate Funding and/or Resources:Apply
canyons to warn of hazardous the losses due to severe County Sheriff's Office for LHTAC funding Priority:Moderate Response
conditions.
weather in the County.
Plan Goals: 2,S,6
Timeline:Unknown
Keep Smith Ferry Road open
Specific:Valley County will
Cost:Unknown Ongoing Preparedness&
11 develop methods to mitigate Valley County Road Department
during the winter Funding and/or Resources: Priority:Low Response
the losses due to severe
weather in the County.
Flooding
Plan Goals:1,2,3,6
Specific:Valley County will
continue to participate in the Timeline:
12 Continue participation in the NFIP
National Flood Insurance Valley County Floodplain Cost:No cost Ongoing Planning&
Program and develop actions Administrator Funding and/or Resources: Priority:High Regulatory
that will reduce the damage to
County infrastructure due to
flash and stream flooding.
Plan Goals: 1,2,4,5 Timeline:2025
Identify all surface water Specific:Valley County will Cost:$50,000
13 drainage obstructions develop actions that will reduce Valley County Funding and/or Resources: Ongoing Structure&
the damage to County Road&Bridge Department Apply for LHTAC funds to update Priority:High Infrastructure
(bridges/culverts)in the county. infrastructure due to flash and Transportation Plan and create
stream flooding. inventory
Plan Goals:1,2,3,4,6
Specific:Valley County will
continue to participate in the Timeline:2023
14 Establish a Flood Hazard Advisory National Flood Insurance Valley County Cost:No cost Ongoing Planning&
Commission. Program and develop actions Commissioners Funding and/or Resources: Priority:Low Regulatory
that will reduce the damage to Unknown
County infrastructure due to
flash and stream flooding.
Plan Goals:1,2,5,6 Ongoing,continuing
Encourage development of Timeline:2023
Specific: effort,did update Comp
acquisition and management conti Valley County will nue to participate in the Cost:$50,000 ePlan.Adopted new Planning&
15 strategies of floodplains for flood Valley County Commissioners Funding and/or Resources:
mitigation,water quality,and National Flood Insurance Unknown Flood Maps(FIRM)and Regulatory
wildlife. Program and develop actions ordinances.
that will reduce the damage to Priority:Low
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-43
County infrastructure due to
flash and stream flooding.
Geological
Plan Goal: 1,2,4
Timeline:Unknown
Collect a HAZUS GIs inventory of Specific:Valley County will
Cost:$10,000
critical facilities and assess the reduce potential damage to Emergency Management,Valley Ongoing Structure&
16 seismic risk to those facilities County infrastructure and County Building Department Funding and/or Resources:Apply Priority:High Infrastructure
with HAZUS structures through for Cl/KR Funds under the sHSP
Investment
implementation of earthquake
mitigation techniques.
Plan Goals:1,2,4
Valley County will reduce Structure&
Inspect buildings, articular) Timeline:Unknown
p g particularly potential damage to County Infrastructure
17 unreinforced masonry,for infrastructure and structures Valley County Building Cost:No cost Ongoing
earthquake stability. through implementation of Department Funding and/or Resources:HMA Priority:High Planning&
earthquake mitigation Funding Regulatory
techniques.
Plan goals:1,2,4
Specific:Valley County will Timeline:2022
reduce potential damage to Cost:$35,000
Assess seismic hazard on public Valley County Building Ongoing Structure&
18 buildings. County infrastructure and Department Funding and/or Resources: Priority:High Infrastructure
structures through HMA Planning Grant to redo
implementation of earthquake Seismic Section of AHMP
mitigation techniques.
Plan goals:1,2,4,6
Specific:Valley County will Structure&
Establish a special task force to Timeline:Unknown Infrastructure
19 help schools reduce structural County infrastructure and reduce potential damage to Valley County Commissioners, Cost:No cost Ongoing
and nonstructural seismic School districts Funding and/or Resources: Priority:Low Planning&
hazards. structures through Unknown Regulatory
implementation of earthquake
mitigation techniques.
Plan Goals:1,2,6
Specific:Valley County will Planning&
Timeline:2023
Inspect schools and other public reduce potential damage to Regulatory
20 buildings for snow-load County infrastructure and Valley County Commissioners Cost: 0 Ongoing
Fundinngg and/or Resources: Priority:Low
resistance and retrofit necessary. structures through HMA Funding Structure&
implementation of earthquake Infrastructure
mitigation techniques.
Plan Goals:1,2,4,6 Timeline:Unknown Ongoing.
Specific: Valley County will Cost:$10,000 Adopted IRC and IBC at
21 Develop a landslide hazard reduce the potential damage to Emergency Management,Idaho Funding and/or Resources: county levels.Need to Planning&
identification study. property from landslides by Geologic Survey,IOEM grant and/or work with do an assessment of Regulatory
adopting the International universities or Idaho Geologic landslide areas.
Building Code and standards for Survey Priority:High
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-44
construction in landslide prone
areas.
Plan Goals:1,2,7
Specific:Valley County will
reduce the potential damage to Timeline:Unknown
Standardize practices for Planning&
property from landslides by Valley County Commissioners, Cost:$25,000 Ongoing
22 excavation,construction,and Regulatory
grading of roads. adopting the International Valley Road Department Funding and/or Resources: Priority:High
Building Code and standards for Unknown
construction in landslide prone
areas.
Biological
Plan Goal: 1,2,3
Timeline:Continuous
Maintain an active"fight the
Specific:Valley County will seek
Health District and Emergency Cost:No Cost Ongoing Education
23 to reduce the exposure of
bite"public education program. Services Funding and/or Resources: Priority:Low Programs
humans and animals to the
Unknown
West Nile Virus.
Structure Fire
Encouraging private property Plan Goals: 1,2,3 Timeline:2023
owners to install and maintain Specific: Valley County will seek Cost:$65,000 Ongoing Education
24 smoke detectors on all levels of to reduce losses from structure Fire Districts Funding and/or Resources: Priority:High Programs
residences and to place detectors fires through working with Assistance to Fire Fighters Safety
in all bedrooms. private property owners. Grant Program
Plan Goals:1,2,7
Timeline:2021
Improve water supplies for fire- Specific Goal:Valley County will
25 fighting countywide using existing seek to reduce losses from Fire Districts Cost:
bodies of water. structure fires through working Fundinngg 0 Ongoing Structure&
and/or Resources: Priority:High Infrastructure
Unknown
with private property owners.
Hazardous Material
6 4 2, ,
Conduct a hazardous materials Plan Goals: 1, Timeline:Unknown
Specific:Valley County will seek
flow study for US and State Valley County Emergency Cost:$8,000 Ongoing Preparedness&
26 to reduce losses from structure
Highways running through the fires through working with Services,IOEM Funding and/or Resources: Priority:Low Response
County. HMEP grant and conduct study
private property owners.
Riot/Demonstrations/Civil Disorder
Conduct a public education Plan Goals: 2,3
program to assist the citizens of Specific:Valley County will Timeline: 024
Cost:$10,000
the County in recognizing and develop methods to identify and Valley County Ongoing Education
27 Funding and/or Resources:
reporting civil disobedience report civil disobedience Sheriff's Office law enforcement grants to Priority:Moderate Programs
events to county law activities.
conduct public education.
enforcement.
Terrorism
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-45
Plan Goals:1,2,4
Specific:Valley County will
Timeline:2020
Conduct a County Terrorism
identify measures to protect
Cost:$100,000 Ongoing Planning&
28 critical County infrastructure Emergency Services
Assessment. Funding and/or Resources: Priority:High Regulatory
and facilities from potential
terror incidents. Unknown
Other
Plan Goals:2,3 Timeline:Unknown Preparedness&
Develop a program to promote Specific:Improve safety in Cost:No Cost Ongoing Response
29 "72 Hour"personal emergency Valley County Emergency Management Funding and/or Resources: Priority:Low
kits. Unknown Education
Plan Goals:1,4,6,7 Planning&
Specific:Improve safety in Timeline:Continuous Regulatory
30 Develop a County GIs Valley County Valley County Cost:$7S,000/year Ongoing
department. Commissioners Funding and/or Resources: Priority:High Preparedness&
Unknown Response
Plan Goals: 7 Timeline:Unknown
Develop a NIMS Resource Typing Specific:Improve safety in Cost:$2,S00 Ongoing Preparedness&
31 list of all emergency equipment Valley County Emergency Management Funding and/or Resources:
and vehicles Include as a NIMS investment Priority:Low Response
task in SHSP grant
Plan Goals: 2,S,6,7 Timeline:2020
Formalize agreements to utilize Specific: Improve safety in Cost:No Cost Ongoing Planning&
32 County-owned snow groomers Valley County Valley County Commissioners Funding and/or Resources: Priority:High Regulatory
for rescue operations.
Unknown
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-46
5.3.1 Changes in Mitigation Priorities
The economy and development pattern of Valley County is dominated by tourism and is thus
impacted by the general state of the U.S. economy. They have a high degree of second home
ownership (78%). There have been a number of developments in Valley County since the last
plan was approved, but most of these were already in the approval or beginning stages of
development during the last planning process, and were thus already considered in the last plan.
Completion of these slowed down for some years due to the 2008 recession, and they were
completed later than originally expected. Thus priorities for prior mitigation strategies have not
shifted significantly since the last plan. However, with the economy picking up again, there is
pressure on home prices that makes affordable housing for county workers a challenge, which
makes it difficult to recruit and retain experienced employees. These types of factors influenced
the development of several new mitigation priorities. Priorities for new mitigation actions were
set using the Staplee method. Worksheets used for this are included in Appendix D.
5.3.2 Completed & Removed Mitigation Actions & Projects
The following actions were completed prior to the 2020 update or were removed from the
strategy during the 2020 update:
Table 5.2 Valley County Completed and Removed Mitigation Actions
Mitigation Action Status Notes
Request local power companies to take a more The West Central Mountains Electrical Plan was
active role in connecting electrical power grids in Completed developed by Idaho Power 2013/2014. Work
the county. with Idaho Power to Implement.
5.4 City of Cascade Mitigation Actions & Implementation Plan
The following table shows the specific actions and projects to be implemented over the plan's
five-year life.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-47
Table 5.3 City of Cascade Mitigation Actions and Implementation Plan
City Lead Agency, Estimated Timeline,
of •e Action Item Goals1Priority Mitigation
Partners Cost, • •
Flood
Seek Floodplain Manager Certification Timeline:2011—Complete Changed action from
(prior);for this plan update this action is CFM Requirements Floodplain Manager
Certification to Floodplain Planning&
1 changed to providing continuing education 7 City Building Inspector Cost:No cost Manager (City Building Regulatory
for floodplain manager Funding and/or Resources:
Unknown Inspector)Continuing
Education
Timeline:Ongoing
Review and Redraw City Floodplain Maps Cost:$50,000 Ongoing Planning&
2 as necessary 1,2,7 Building Inspector Funding and/or Resources: Regulatory
2012—Seek Funding from FEMA
2013—Conduct Mapping
Timeline:2021
3 Establish a Flood Hazard Advisory 1,2,3,7 City Council Cost:No cost Ongoing Planning&
Commission Funding and/or Resources:2011 Regulatory
—Establish Commission
Timeline:2022
Increase the size of the culverts under ITD and City Council Cost:$500,000 Ongoing Structure&
4 Highway 55 1,2,6 Funding and/or Resources:2011 Infrastructure
—Apply for HMA Funding
2012—Replace Culverts
Timeline:Recurring&Ongoing
5 Protect the City Sewer System or remove 1,2,5 Wastewater Cost: $1M Ongoing Structure&
from floodplain Department Funding and/or Resources: Infrastructure
2011-Conduct Flood Analysis
Stormwater infrastructure needs to be
TBD
improved to prevent current and future Timeline:Cost: $611250
,
flooding.Cascade's existing stormwater
Funding and/or Resources:City's
6 system is disconnected and undersized 112,517 Cascade Public Works General Fund,Highway User New,HIGH priority Structure&
with the final outlet elevation too high. and DEQ Fees,Hazard Mitigation Grant Infrastructure
Deficiencies cause routine flooding in
areas such as Pine St,Idaho St,Mill St,and Programs,
DEQ Grant Programs
SH-55.
Severe Weather
Timeline:2021
Identify Evacuation 2 Cost:-$10,000.00 Ongoing Preparedness&
Shelters Equip with Emergency Generators. ,7 Mayor/Public Works Funding and/or Resources: Response
Unknown
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-48
ActionCity of Cascade Lead
Estimated Timeline,
Priority
Partners Cost, & Resources •
Timeline:2021
Request local power companies to take a Cost:Unknown Ongoing Structure&
8 more active role in connecting electrical 2,6 City Council
power grids in the county. Funding and/or Resources:with Infrastructure
Power Company
Geological
Timeline:Ongoing
Cost:No cost
Inspect buildings, Funding and/or Resources:2011
Building Departments Ongoing Planning&
9 Particularly unreinforced masonry,for 1,2,3 —Conduct Surveys Regulatory
earthquake stability. 2012—Select Projects and
Engineer Solutions
2013—Apply for HMA Funding
Timeline:Ongoing
Planning&
000
Building Departments Cost:$35, Ongoing Regulatory
10 Assess seismic hazard on public buildings 1,2,4 Funding and/or Resources:2011
—Apply for HMA funds to
conduct Seismic Update of AHMP
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-49
5.4.1 Changes in Mitigation Priorities
The City of Cascade did not experience significant development since the last plan and thus
priorities for the implementation of prior mitigation strategies were not changed. However, due
to recent economic conditions, there has been significant movement recently on purchases of
undeveloped land and there is a large new development currently in the application process.
This was considered by both the City of Cascade and the Cascade Rural Fire District in their
consideration of mitigation strategies. There was one new mitigation action (stormwater
infrastructure) identified at this time and was prioritized as a high, immediate priority for the
City.
5.4.2 Completed & Remove Mitigation Actions & Projects
The following actions were completed prior to the 2020 update or were removed from the
strategy during the 2020 update:
Table 5.4 City of Cascade Completed or Removed Mitigation Actions
Mitigation Action Status Notes
Inspect schools and other public buildings for snow-load resistance
and retrofit necessary Completed N/A
5.5 City of Donnelly Mitigation Actions & Implementation Plan
The following table shows the specific actions and projects to be implemented over the plan's
five-year life.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-50
Table 5.5 City of Donnelly Mitigation Actions and Implementation Plan
City Lead Agency, Estimated Timeline, Cost,
of Donnelly Action • . Priority
Partners & Resources •
Flood
Timeline:Ongoing Ongoing Planning&
Implement Recommendation of US Army Cost:Unknown Regulatory
1 Corps of Engineers project 2-04-081 report 1,2 City Council Funding and/or Resources:2011— Successful in continuing to
for the City of Donnelly. Begin Planning with Power participate in the NFIP Structure&
Company Priority: High Infrastructure
Timeline:Ongoing
Establish a Flood Hazard Advisory Cost:No cost Ongoing Planning&
2 Commission 1,2,4 City Council Funding and/or Resources: 2011— Priority:Low Regulatory
Establish
Commission
Severe Weather
Timeline:2022 Structure&
Identify Evacuation Shelters Equip with Cost:Not provided Ongoing Infrastructure
3 1,2,6 Mayor/Public Works Funding and/or Resources:2011—
Emergency Generators. Priority: High
Work with City Council,Church, Response and
and Volunteer organizations Preparedness
Ongoing
Inspect schools and other public buildings for Timeline:2022
4 snow-load 1,2,6 Building Departments, Cost:Not provided City does not have a building Structure&
resistance and retrofit necessary. School Distric Funding and/or Resources:2011— inspector. Valley County does Infrastructure
Conduct Analysis our inspections as needed
Priority:Low
Completed
Timeline:Not provided West Central Mountains
Request local power companies to take a Cost:Not provided Electrical Plan was developed
City Council,utility Structure&
5 more active role in connecting electrical 1,2,5,6 Funding and/or Resources:2011— by Idaho Power 2013/2014.
providers Infrastructure
power grids in the county. Begin Planning with Power Work with Idaho Power to
Company implement
Priority:Low
Geological
Timeline:2022
Cost:No Cost Ongoing
Funding and/or Resources:2011— City does not have a building
Inspect buildings,Particularly unreinforced Structure&
6 masonry,for earthquake stability. 1,2,4 Building Departments Conduct Surveys inspector. Valley County does Infrastructure
2012—Select Projects and our inspections as needed
Engineer Solutions Priority:High
2013—Apply for HMA Funding
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-51
City of Donnelly Action Item Goals Lead Agency, Estimated Timeline, Cost, 2019 Status & Priority Mitigation
Partners & Resources Type
Timeline:2022 Ongoing/Partially Completed
New Well Supply Installed
7 Harden and Protect the City Water Supply 1,2,5 City Water Department Cost:Funding ng million and/or Resources:2010— Working on other water Structure&
infrastructure Infrastructure
Apply for HMA and DEQ Funding
Priority:Low
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-52
5.5.1 Changes in Mitigation Priorities
The City of Donnelly has not been impacted by the growth and development seen in some other
areas of Valley County. Overall mitigation priorities did not change for the City of Donnelly
between plan updates and there were no new actions added.
5.5.2 Completed & Removed Mitigation Actions & Projects
The following actions were completed prior to the 2020 update or were removed from the
strategy during the 2020 update:
Table 5.6 City of Donnelly Completed or Removed Mitigation Actions
Mitigation Action Status Notes
Review and Redraw City Floodplain Maps as necessary Completed N/A
5.6 City of McCall Mitigation Actions & Implementation Plan
The following table shows the specific actions and projects to be implemented over the plan's
five-year life.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-53
Table S.7 City of McCall Mitigation Actions and Implementation Plan
City
of • •als Lead Agency, Estimated Timeline, Cost, & 2019 Status & Priority
Partners Resources •
General
Implement City of McCall City of McCall,McCall
2017 Area Comprehensive Fire,McCall Donnelly Timeline:2024
Plan Policy E 9.1:Create School District, Cost:$75,000-100,000
an All Hazards Mitigation Homeowner Funding and/or Resources:City General New Planning&
1 Master Plan for City of 4,6,7 Associations, Funds,Hazard Mitigation Planning Priority:Moderate Regulatory
McCall to assess and Community&Civic Grants,Water User Rates,Sewer User
address Groups,Payette Lakes Rates,other partner contributions
hazard risks. Recreational Water
and Sewer District
Geological
Inspect buildings, Timeline:2023
Z particularly unreinforced 1,2,4 Building Departments Cost:$5,000 Ongoing Structure&
masonry,for earthquake Funding and/or Resources: Infrastructure
stability. Search for grants&State and County aid
Wildland Fire
Upgrade water storage and
fire flow capacity in City of Timeline:2028
McCall water pressure 9 Million.Cost:$9
City of McCall Public New Structure&
3 zones with deficiencies as 1,2,5 Funding and/or Resources:
identified in the 2017 City Works Water User Rates,Municipal Bond, Priority:High Infrastructure
of McCall Water Master Hazard Mitigation Grants
Plan
Severe Weather
Timeline:Unknown
Identify Evacuation Cost:No Cost
4 Shelters Equip with 1,2,5 Mayor and Public Funding and/or Resources: Ongoing Preparedness&
Emergency Generators. Works Work with City Council,Church,and Response
volunteer organizations.
A licensed structural engineer
is needed to perform these
Timeline:Unknown evaluations and make retrofit
Inspect schools and other Building Cost:No Cost recommendations.No budget
5 public buildings for snow- 1,2,4,6 Departments, Funding and/or Resources: was allocated to procure the Structure&
load resistance and retrofit School Districts Capital Improvement Plan(CIP)2019- engineering analysis and no Infrastructure
necessary. 2023.School District Buildings are the budget was allocated to make
responsibility of the district. the retrofits during the 2011-
2016 plan period.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-54
City of McCall Action Item Goals Lead Agency, Estimated Timeline, Cost, & 2019 Status&Priorlb., —Mitigation
Partners Resources Type
Request local power
companies Timeline:Unknown
6 to take a more active role 1,2,6,7 City Council Cost:No Cost Ongoing Preparedness&
in connecting Funding and/or Resources: Response
electrical power grids in Begin Planning with Power Company
the county.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-55
5.6.1 Changes in Mitigation Priorities
Similarly to the county as a whole, dependence on the tourism tends to drive development in
the City of McCall. Thus in the early years since the last plan there was a not a lot of new
activity but in recent years there as been an increase in housing construction, but no new major
shifts in land use or zoning. In coming years there is the potential for redevelopment of
downtown area streets. Priorities for prior mitigation strategies did not change, however, two
new mitigation actions were added. The priorities for these were assigned based on the
Staplee method, with documentation of this provided in Appendix D.
5.6.2 Completed & Removed Mitigation Actions & Projects
The following actions were completed prior to the 2020 update or were removed from the
strategy during the 2020 update:
Table 5.8 City of McCall Completed or Removed Mitigation Actions
Mitigation Action Status Notes
Review and Redraw City Floodplain Maps as necessary. Completed Completed in 2013
Commission was not
established.Instead City
Council adopted Flood
Control Regulations
Modified since Ordinance 822 effective 3-
Establish a Flood Hazard Advisory Commission last plan and 16-2006 including adoption
of1989 FIRM maps.City
Removed Engineer is certified Flood
Plain Manager and reviews
all development
applications.
5.7 Special Districts Mitigation Actions & Implementation Plan
The following two tables table show the specific actions and projects to be implemented over
the plan's five-year life.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 II-56
Table 5.9 Payette Lakes Recreation Water and Sewer District Mitigation Actions and Implementation Plan
Payette Lakes
- . •
GoalsRecreation Water and
Estimated Timeline,
119 Status & Priority Mitigation •
ActionSewer District • Resources
Partners
Items
Severe Weather
Timeline:Unknown
Identify Evacuation
1 Shelters Equip with 1,2,7 Superintendent Cost:No Cost Ongoing Preparedness&
Emergency Generators. Funding and/or Resources:HMA Priority:High Response
Funding
Geological
Timeline:Unknown
Inspect water and sewer
2 systems for Earthquake 1,2,4 Superintendent Cost:No Cost Ongoing Structure&
stability Funding and/or Resources:HMA Infrastructure
Funding
Table 5.10 Rural Fire Districts Mitigation Actions and Implementation Plan
CascadeLead
•
ActionDistricts Goals
• Resources
Partners
Fire
Backup generator for Timeline:2020-202S
Cascade Rural Fire District. Cascade Rural Preparedness&
Cost:$50,000 New
1 At this time there is no 1,2,7 Fire District and Response
backup power established Valley County Funding and/or Resources: Priority:High
Unknown
for this fire station.
Valley County Multi-Jurisdictional Hazard Mitigation Plan II-57
5.7.1 Changes in Mitigation Priorities
Mitigation priorities as detailed in the strategy did not change between plan updates for Payette
Lakes Recreation Water and Sewer District and no new mitigation actions were identified. The
Cascade Fire District identified a new urgent need, which is a high priority even under current
conditions but will be an even more pressing need if potential developments currently being
discussed are approved and built out.
5.7.2 Completed & Removed Mitigation Actions & Projects
These districts did not complete or remove any mitigation actions from the strategy prior to or
during the 2020 update.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-58
6 Mitigation Capabilities
6.1 Overview
Each community has a unique set of capabilities, including authorities, policies, programs, staff,
funding, and other resources available to accomplish mitigation and reduce long-term
vulnerability. This section provides an overview of these capabilities, including state and federal
capabilities that local officials can utilize in hazard mitigation, the National Flood Insurance
Program (NFIP), and an assessment of the capability types completed by adopting jurisdictions.
6.1.1 Summary of Revisions
The 2020 update incorporated this section into the plan. Points to note:
• Incorporated the former plan's Floodplain Management section;
• Reviewed and summarized relevant Federal and State planning and regulatory
capabilities related to hazard mitigation;
• Reviewed and summarized county and community planning and regulatory capabilities
related to hazard mitigation; and
• Incorporated National Flood Insurance Program (NFIP) statistics and discussion on
jurisdictional participation and future compliance.
6.1.2 FEMA Requirements
This section adheres to and fulfills the following regulations:
• 44 CFR §201.6(c)(3) — A mitigation strategy that provides the jurisdiction's blueprint for
reducing the potential losses identified in the risk assessment, based on existing
authorities, policies, programs, and resources, and its ability to expand on and improve
these existing tools.
o (ii) — A section that identifies and analyzes a comprehensive range of specific
mitigation actions and projects being considered to reduce the effects of each
hazard, with emphasis on new and existing buildings and infrastructure. All plans
approved by FEMA after October 1, 2008, must also address the jurisdiction's
participation in the NFIP, and continued compliance with NFIP requirements, as
appropriate.
• 44 CFR §201.6(c)(4) —The plan shall include the following:
o (ii) —A process by which local governments incorporate the requirements of the
mitigation plan into other planning mechanisms such as comprehensive or capital
improvement plans, where appropriate.
6.2 Federal & State Planning & Regulatory Capabilities
Several federal and state regulations and policies form the legal framework in which to
implement Valley County's hazard mitigation goals and projects. A list of these regulations and
plans is presented below:
• Federal
o The Federal Civil Defense Act of 1950
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-59
o Public Law 96-342, The Improved Civil Defense Act of 1980
o Public Law 91-606, Disaster Relief Act
o Public Law 93-288, The Robert T. Stafford Disaster Relief Act of 1974.
o Presidential Executive Order 11988, Floodplain Management
o Presidential Executive Order 11990, Protection of Wetlands
• State of Idaho
o Idaho State Code Title 46, Chapter 10, State Disaster Preparedness Act
o Idaho State Code Title 39, Chapter 71, Hazardous Material Act
o Idaho State Title 67, Chapter 65, Local Land Use Planning Act
o Governor's Executive Order 2000-04, April 20, 2000
6.3 National Flood Insurance Program Compliance
In response to the mounting flood-related losses over the 20th century, Congress passed the
National Flood Insurance Act (NFIA) of 1968, which instituted the National Flood Insurance
Program (NFIP). The NFIP made flood insurance available to communities that agreed to adopt
and enforce floodplain management ordinances, through hazard mitigation planning, site design
and construction standards, and land use regulations. The NFIP was based on the premise that
populations located in flood-prone areas should bear a substantial portion of the cost to reduce
community vulnerability and bear responsibility for a majority of losses should the community
experience a flood disaster. The table below details the county's and cities' participation and
policies in the NFIP.
Table 6.1 NFIP Statistics'
Community NFIP CRS Flood Claims Repetitive Policies Insurance ln- Written
Name Status Status Claims Paid Loss In-force force Whole Premium
Properties In-force
Valley County Yes 10 30 $8,882,000.00
City of Cascade Yes - 1 $522,100.00
City of Donnelly Yes
City of McCall Yes 3 $980,000.00
The county and each of these jurisdictions adopted new FEMA floodplain maps in 2019.
Valley County is in full compliance with the requirements of the NFIP.They strive to remain
in compliance with the NFIP and promote continuing education for the Planning and
Zoning Administrator who is also a Certified Floodplain Manager. In the City of Cascade,
the City's Building Inspector serves as the Flood Plain Administrator and continues to work
with FEMA and the Idaho Department of Water Resources to stay current on regulations
required by NFIP Program and attends regular continuing education. The City of Donnelly
is also in full compliance with the requirements of the NFIP. The City of McCall maintains
compliance by maintaining current FEMA floodplain maps and ensuring that their zoning
' Policy&Claim Statistics for Flood Insurance, Policy Statistics as of 05/31/2019, retrieved from
https://www.fema.gov/policy-claim-statistics-flood-insurance
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-60
ordinance contains floodplain regulations required by the NFIP. The city engineer is a
certified floodplain manager and our city planner attends annual floodplain training
conferences. All development applications are reviewed for compliance with the floodplain
overlay zone.
Concurrently with the development of this HMP,Valley County and several of its
jurisdictions were also active in adopting new floodplain ordinances. Valley County also
adopted the model Flood Damage Prevention Ordinance as recommended by the State of
Idaho on January 7, 2019. In addition to this ordinance,Valley County has more restrictive
standards that prevents most development, fill, and excavation in a floodplain. The City of
Cascade adopted its Flood Damage Prevention Regulations Ordinance in January, 2019,
Ordinance No. 696.The City of Donnelly also adopted the Flood Damage Prevention
Ordinance as recommended by the State of Idaho on December 17, 2018.
6.4 Valley County Mitigation Capabilities Assessment
The tables below were compiled from a questionnaire completed by county representatives.The
tables detail the county's mitigation-related capabilities that reduce hazard impacts or that can
be used to implement hazard mitigation activities.
Table 6.2 Valley County Mitigation-Related Capabilities
Synopsis
Administrative&Technical
Yes.The Valley County P&Z Commission(P&Z)has five
members appointed by the Board of County
Commissioners.The Commissioners are chosen from
throughout Valley County(VC)for a geographic
representation.The P&Z is responsible from proposing
amendments to the long-range Comprehensive Plan and
Dedicated planning commission making decisions on current land use applications.The
P&Z recommends goals,objectives and implementation
tactics in the Comprehensive Plan.A large part of the
plan is to identify hazards and avoid them entirely.Many
of the tactics are for mitigation of impacts or awareness
Administration of impacts.In making land use decisions,their job is to
mitigate impacts.
Local Emergency Planning
Committee
Yes,VC Building and Grounds maintains the VC campus in
Cascade(shop and courthouse),road department facilities
on Gold Dust,Lakefork Road Dept.shop,Materials
Dedicated maintenance Recovery Facility on Paddy Flat,and other facilities.VC
programs to reduce risk Parks and Recreation department maintains the recreation
facilities at snowmobile parking lots,campgrounds,
groomer sheds,etc.Each of these departments maintain
as needed to prevent harm to capital improvements.
Valley County Multi-Jurisdictional Hazard Mitigation Plan III-61
Specific programs,such as a Capital Improvement
Program should be developed for these various facilities.
The VC Road Department has a maintenance program for
all county and backcountry roads,bridges,etc.This
program includes culvert replacement and pavement.
With the lack of funding in recent years it is more of an
as needed maintenance program.
A Capital Improvement Program would identify
maintenance and improvements in a timely manner so
that grants could be sought and awarded.
The Road Department has a Master Transportation Plan.
Mutual aid agreements(MAAs)
and/or memorandums of Yes,through the Sheriff's office
understanding(MOUs)
Yes,The Building Official is new.She has been trained on
Chief Building Official International Building Codes.She attends various
trainings as offered on things such as fire resistant
structures and seismic codes.
Yes,The Floodplain Administrator is a Certified Floodplain
Manager.VC does not allow development in the
Floodplain Administrator floodplain,so identification of the floodplain and ability
to interpret maps guarantees that there will be very little
Staff risk of flooding of assets in the future.
Emergency Manager Yes
Yes,The Planning&Zoning Administrator is a Community
Planner.Staff is trained on hazards and mitigations and
can identify potential risks and hazards.VC does not
Community Planner allow development in the floodplain,so identification of
the floodplain and ability to interpret maps guarantees
that there will be very little risk of flooding of assets in
the future.
Warning systems and/or services Yes,Code Red alert
Technical Hazard data&information Yes,The VC Road Department has historical information on roads
that have been destroyed in the past.
Education&Outreach
Valley County Fire Working Group(interagency)and Payette Lake
Active local citizen groups or Watershed Advisory Group.The Valley Country Fire Working
non-profit organizations Group is an all jurisdiction membership that actively pursues
education for property owners and agencies;and,on-site fuel
Education
reduction mitigation efforts.
Ongoing public education or Yes,the Fire Working Group has regular public education
information programs sessions.They are going to do a'Living with Fire in Valley County'
series.
Natural disaster or safety related
school programs Yes,Fire
Financial
Funding for capital improvement
No
projects
Authority to levy taxes for Yes,they levy a fee for solid waste,but have never taxed for
specific purposes hazard mitigation.There is a fee for building in a Wildland Urban
Funding Resources Interface
Funding through other federal Yes,Road&Bridge Department
funding programs
Funding through any state
Yes,Road&Bridge Department
funding programs
Planning&Regulatory
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-62
The Valley County Comprehensive Plan(2010)is currently being
Comprehensive Plan updated by the VC Planning and Zoning.Hazards are addressed in
Chapter 5 with various hazard mitigation and implementation.
Yes,The West Central Mountains Economic Development
Economic Development Plan Strategy(2016)
Planning&Plans Local Emergency Operations Plan The Valley County Emergency Operations Plan(2010)
Transportation Plan Yes,the Valley County Master Transportation Plan,March 2008
Stormwater Management Plan No
Community Wildfire Protection
Yes
Plan
State of Idaho building Codes 2016
International Building Code,2015 edition,published by the
International Code Council.
International Residential Code,parts I through IV and IX,
including appendices G,1,and L,2012;and,appendix Q-Tiny
Houses,2017 published by the International Code Council.
International Energy Conservation Code,2015 with 2012
amendments for residential portion,a copyrighted work owned
by the International Code Council,Inc.(Ord.18-01,12-4-2017,
eff.1-1-2018)
Idaho Code title 44,chapter 22 and section 44-2501 et seq.,
relating to manufactured homes.
Uniform Code for Abatement of Dangerous Buildings,1997,
Building Codes, published by the International Conference of Building Officials.
Permitting,& Building codes American Standard Specifications for Making Buildings and
Facilities Accessible to,and Usable by,the Physically
Inspections Handicapped,ANSI A117.1-1992(R 1971),published by the
American National Standards Institute.
University of Idaho publication"Ground and Roof Snow Loads for
Idaho", 1986.
8Elevators,Dumbwaiters,Escalators and Moving Walks,ANSI
A17.1-1996,and ANSI A17.1b-1973,published by the American
National Standards Institute.(Ord.11-2,4-11-2011)
International Fire Code,2015,published by the Building Officials
and Code Administrators International,Inc.,adopted by the
Idaho Fire Marshal.(Ord.18-01, 12-4-2017,eff.1-1-2018)
"Technical Guidance Manual for Individual and Subsurface
Sewage Disposal",published by the State of Idaho Department of
Health and Welfare,dated May 6,1993,only as it relates to the
construction of privy buildings.
Yes,Title 9 of the Valley County Code 1982 to Present where it
states No development in a floodplain—Title 9 and Title it and
Zoning ordinance No floodplain development,perhaps some FireWise landscaping
requirements.
Land Use Planning Yes,from 1971 to present which allows 120'run to a cul-de-sac
&Ordinances Subdivision ordinance and two access points if possible.Roads can only cross
floodplains on a direct route,no development in a floodplain.
Yes,Title 9 and Title 11 of the Valley County Code.Title 9
Floodplain ordinance contains an overlay prohibiting development in floodplains and
Title 11 is the ordinance required to comply with NFIP(2017).
There is a need to fully adopt the new FIRM maps.
Overall, members of the planning team identified funding and human resources as primary gaps
and constraints in implementing hazard mitigation. New mitigation strategies focus on human
resources to bridge the identified gap.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-63
6.5 Cascade City Mitigation Capabilities Assessment
The tables below were compiled from a questionnaire completed by the city personnel. The
tables detail the city's mitigation-related capabilities that reduce hazard impacts or that can be
used to implement hazard mitigation activities.
Table 6.3 Cascade City Capabilities Assessment
Synopsis
Administrative&Technical
Yes,The City has a P&Z Commission,as identified in the City
Dedicated planning commission Ordinance,that meets monthly.
Local Emergency Planning
Unknown
Committee
Yes, The City's Public Works crew consists of four (4) full time
Administration Dedicated maintenance employees that oversee the City as a whole, including clearing
programs to reduce risk stormwater drains, tree maintenance, water and wastewater
systems. The City also has a Building Inspector/Code Enforcement
Officer that continues to enforce City Codes.
Mutual aid agreements(MAAs) No,The City does have an Contract with the Valley County Sheriff's
and/or memorandums of Department for additional law enforcement coverage.
understanding(MOUs)
Chief Building Official Yes;receive hazard mitigation-related education and training
Floodplain Administrator Yes;receive hazard mitigation-related education and training
Emergency Manager Yes;receive hazard mitigation-related education and training
Community Planner Yes;receive hazard mitigation-related education and training
Yes,the City contracts with certified engineer. The City also
Staff Civil Engineer contracts with other engineering services as required for specialty
projects
Yes,the City contracts with a certified engineer and/or IRWA for
GIS Coordinator GIs services. The City also works directly with Valley County's GIS
department.
Yes, via services provided by Cascade Rural Fire District, Valley
Warning systems and/or services County Sheriff Department and the Red Alert System...
Hazard data&information Yes,via services provided by Cascade Rural Fire District and Valley
County Sheriff Department.
Technical Yes, The City, School and Cascade Medical Center share in the
services of a full-time grant writer. The Grant Writer works directly
Grant-writing expertise with the City Engineer and other city staff to assess current and
future needs of the City.
Hazus expertise Unknown
Education&Outreach
Active local citizen groups or Cascade Schools Safety Committee, Cascade Rural Fire Protection
non-profit organizations District,Fire District,The Valley County Fire Working Group
Ongoing public education or School District has ongoing effort to try to keep parents/families
information programs informed as it pertains to the children
VCFWG provides a variety of educational opportunities throughout
Natural disaster or safety the Community. The initiatives directly support and encourage
Education related school programs public awareness and positive social change that helps future
mitigation actions.
No;However,Valley County participates in Code Red system
Storm Ready certification which provides a voluntary sign up to receive notifications of
emergency situations or critical community alerts.
FireWise Community An assessment of the FireWise Community Certification
certification requirements and benefits would be appropriate.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-64
Public-private partnerships VCFWG with homeowner groups,and the City follows Valley County
EOP
Financial
Funding for capital City just started to allocate funding for capital improvement
improvement projects projects in the FY18/19 Budget. Funding mitigation would lessen
the impact of repairing/replacing infrastructure.
Authority to levy taxes for Exists,but has not been implemented in hazard mitigation
specific purposes
Funding through other federal N/A
funding programs
Impacts fees for new
No
development
Storm water utility fee No
Funding Resources Incur debt through general
obligation bonds and/or special Yes
tax bonds
Incur debt through private
No
activities
Funding through a Community N/A
Development Block Grant
Other federal funding programs N/A
Funding through any state
Yes,through various foundations
funding programs
Planning&Regulatory
Comprehensive Plan Yes,2018
Capital Improvements Plan Yes,2019
Economic Development Plan Yes,see WCMEDC
Local Emergency Operations
Yes
Planning&Plans Plan
Transportation Plan Yes 2020
Stormwater Management Plan Yes,see Transportation Plan
Community Wildfire Protection
Yes,there is a county wide wildfire protection plan
Plan
Building Codes, Building codes Yes,The City follows the Idaho Division of Building Safety and has
Permitting,& adopted codes pursuant to them.
Inspections ISO-rated fire dept. Yes,5
Land Use Planning Zoning ordinance Yes
&Ordinances Subdivision ordinance Yes
Floodplain ordinance Yes
6.6 City of Donnelly Mitigation Capabilities Assessment
Table 6.4 City of Donnelly Capabilities Assessment
Synopsis
Administrative&Technical
Yes,The City has a P&Z Commission,as identified in the City
Dedicated planning commission Code 18.130
Local Emergency Planning
Participates in Valley County LEPC
Committee
Administration Dedicated maintenance programs to Yes,The City's Public Works Dept oversees City maintenance
reduce risk in these areas.
Mutual aid agreements(MAAs) No, The City does not Contract with the Valley County
and/or memorandums of Sheriff's Department for additional law enforcement
understanding(MOUs) coverage.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-65
Chief Building Official No
Floodplain Administrator No
Emergency Manager No
Community Planner No
Staff Yes,the City contracts with certified engineer. The City also
Civil Engineer contracts with other engineering services as required for
specialty projects
No.the City works directly with Valley County's GIS
GIS Coordinator department.
Warning systems and/or services Yes, via services provided by Donnelly Rural Fire District,
Valley County Sheriff Department and the Red Alert System...
Technical Hazard data&information Yes,via services provided by Donnelly Rural Fire District and
Valley County Sheriff Department.
Grant-writing expertise Yes,The City contracts with a grant-writer when necessary
Hazus expertise No
Education&Outreach
Active local citizen groups or non- N/A
profit organizations
Ongoing public education or N/A
information programs
VCFWG provides a variety of educational opportunities
Natural disaster or safety related throughout the Community. The initiatives directly support
school programs and encourage public awareness and positive social change
Education that helps future mitigation actions.
No;However,Valley County participates in Code Red system
Storm Ready certification which provides a voluntary sign up to receive notifications of
emergency situations or critical community alerts.
FireWise Community certification An assessment of the FireWise Community Certification
requirements and benefits would be appropriate.
Public-private partnerships VCFWG with homeowner groups,and the City follows Valley
County EDP
Financial
Funding for capital improvement City allocates funding for capital improvement projects in the
projects annual city budget.
Authority to levy taxes for specific N/A
purposes
Funding through other federal N/A
funding programs
Impacts fees for new development N/A
Storm water utility fee No
Funding Resources Incur debt through general
obligation bonds and/or special tax Yes
bonds
Incur debt through private activities No
Funding through a Community
Yes
Development Block Grant
Other federal funding programs N/A
Funding through any state funding
Yes
programs
Planning&Regulatory
Comprehensive Plan Yes,2014
Capital Improvements Plan
Planning&Plans Economic Development Plan Yes,see WCMEDC
Local Emergency Operations Plan Yes
Transportation Plan Yes 2006(new one anticipated to be complete in July 2020)
Stormwater Management Plan Yes
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-66
Community Wildfire Protection Plan Yes,there is a county wide wildfire protection plan
Building Codes, Building codes Yes
Permitting,&
ISO rated fire dept. Yes,4
Inspections
Land Use Planning& Zoning ordinance Yes
Ordinances Subdivision ordinance Yes
Floodplain ordinance Yes
6.7 City of McCall Mitigation Capabilities Assessment
The tables below were compiled from a questionnaire completed by the city personnel. The
tables detail the city's mitigation-related capabilities that reduce hazard impacts or that can be
used to implement hazard mitigation activities.
Table 6.5 City of McCall Capabilities Assessment
Synopsis
Administrative&Technical
Dedicated planning commission Yes
Local Emergency Planning
No
Committee
Administration Dedicated maintenance Yes
programs to reduce risk
Mutual aid agreements(MAAs) Yes.We have agreements for law enforcement and agreements for
and/or memorandums of public
understanding(MOUs) works.
Chief Building Official Yes
Floodplain Administrator Yes,city engineer
No,the city budget is too small to create a stand-alone position,we
Emergency Manager rely on the Police Chief and the County's Emergency Manager to
Staff fulfill this role.
Community Planner Yes,Planner reviews applications for compliance with city codes that
address fire hazard mitigation,water supply,fire access,etc.
Civil Engineer Yes,PW Director and City Engineer are both licensed PE
GIs Coordinator Yes
Warning systems and/or No
services
Technical Hazard data&information Yes,floodplain data
Grant-writing expertise Yes
Hazus expertise Yes
Education&Outreach
Active local citizen groups or Yes,Valley County Fire Working Group for continue education and
non-profit organizations promotion of FireWise practices;continue support of
the free woody debris disposal program
Ongoing public education or Yes; Snow and ice removal; FireWise promotion; Woody Debris
information programs disposal; Noxious Weed removal; Raise public awareness of action
items they can take to mitigate hazards on private property.
Education Yes, Police department trains McCall Donnelly School District
Natural disaster or safety employees on prevention and response to active shooters, help
related school programs public schools prevent and respond to threats,terrorism
Storm Ready certification No
FireWise Community
Yes
certification
Public-private partnerships Yes,Valley County Fire Working Group
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-67
Financial
The 5-year CIP budget incorporates identified projects from the
Funding for capital City's various adopted master plans. The recently adopted plans
improvement projects contain specific mitigation actions which will be included in the 5-
year CIP.
Authority to levy taxes for Yes, Hazard Mitigation is not a specific category for taxation so any
specific purposes taxes used for those efforts will come from
unrestricted general property tax funds and/or sales taxes.
Fees for water,sewer,gas,or Yes — water only, Water infrastructure upgrades to support fire
electric services suppression
Impacts fees for new
Yes-water meter connections only
development
Storm water utility fee No,the city is not large enough to require an EPA
Funding Resources MS4 Permit
Incur debt through general Yes,If the Council decides to
use debt instead of water user fees to finance the identified projects
obligation bonds and/or special in the 2018 Water
tax bonds
Master Plan.
Incur debt through private
activities No
Funding through a Community Yes, council would need to prioritize these kinds of projects above
Development Block Grant their current priority for affordable housing.
Other federal funding programs No,but absolutely will apply for federal funds to help us
implement out mitigation strategies.
Funding through any state
funding programs Yes
Planning&Regulatory
Comprehensive Plan(1997) Yes, McCall In Motion—McCall Area Comprehensive Plan.Adopted
January 2018.
Yes,City of McCall Capital Improvement Plan.Adopted annually with
each fiscal year budget that starts each October 1.We also have a
Capital Improvements Plan separately adopted 20-year City of McCall Water System Master
Plan that identifies capital improvements for the Water System.
Adopted in December 2017 and approved by Idaho DEQ in March
2018.
Planning&Plans Economic Development Plan Yes,McCall In Motion—McCall Area Comprehensive Plan.Adopted
January 2018.
Local Emergency Operations
Plan(2010) No,we rely on County EDP
Transportation Plan Yes, McCall In Motion — McCall Area Transportation Master Plan.
Adopted January 2018.
Stormwater Management Plan No
Community Wildfire Protection
Unknown
Plan
Building Codes, Building codes Yes,McCall City Code Title 2 and the IBC
Permitting,&
Inspections ISO rated fire dept. Yes,rated 3
Yes,Zoning Ordinance for the City of McCall adopted by Ordinance
Zoning ordinance 821 on February 23, 2006. This is also referred to as Title 3 of the
McCall City Code.
Land Use Planning Yes,Subdivision and Development Ordinance for the City of McCall
&Ordinances Subdivision ordinance adopted by Ordinance 822 on February 23,2006. It is also referred
to as Title 9 of the McCall City Code.
Yes,versions/years?Flood Control Regulations(Overlay Zone)
Floodplain ordinance as adopted by Ordinance 822 on February 23,2006. It is referred to
as Title 8 of the McCall City Code.
Valley County Multi-Jurisdictional Hazard Mitigation Plan 1 III-68
6.8 Other Planning Mechanisms
As noted in the Planning and Regulatory sections of the tables presented in Sections 6.4 - 6.8,
various mechanisms exist for Valley County and the adopting jurisdictions to incorporate
elements of the mitigation plan and/or mitigation actions items.The following table assesses one
of the major planning mechanisms for the county as it relates to hazard mitigation:
Table 6.6 Valley County Comprehensive Plan Planning Mechanism
Valley County, Idaho Comprehensive Plan
Date of Last Revision 2018
Author/Owner Valley County, Idaho
Description
Through the preparation of a Comprehensive Plan, residents can give some direction to
the development("building")of their community.
The plan includes objectives in the Public Works, Housing,Land Use,Transportation,and
Community Design sections related to natural hazard mitigation planning.The Hazardous
Area section describes an extensive number of hazards that impact the County including
Relationship to flood, severe weather, landslides, and more. Additionally, in the Land Use section the
Hazard Mitigation County aims to continue the enforcement of the IBC 2000 which is also directly correlated
Planning to hazard mitigation. The County lists several ways to implement these objectives
including adopting and administering zoning and subdivision ordinances, coordinating
agency partnerships, requiring reviews of significant development proposals, and
coordinating county programs.
Thoughts for Future The County could include tactics in how to accomplish the objectives along with what
Hazard Mitigation offices or partnerships are working collaboratively toward the goal or objective.
Incorporation
Incorporation into Plan content used for the capability assessment, county profile, and risk assessment.
Hazard Mitigation 'Thoughts for Future Hazard Mitigation Incorporation' may be used for the creation of
Plan new mitigation actions in this HMP update or future updates.
Other planning and regulatory mechanisms within the county and its jurisdictions that relate to
hazards mitigation in Valley county and its jurisdictions are noted below. In each case, the
mechanisms were considered in plans to maintain or prior mitigation strategies, and in some
cases, the development of new strategies. The current and planned revisions to these
mechanisms will also assist the county in implementing and maintaining the HMP.
• The Emergency Operations Plan (EOP) informed several of the mitigation strategies
updated or added in this HMP, such as the need for updated communications networks
and more personnel involved in emergency operations, as well as affordable housing for
these personnel. One of the mitigation actions in this HMP is to revise the EOP
• The City of Donnelly Comprehensive Plan, the goals of which are summarized in Section
2.7.3.
• The City of Donnelly Floodplain Ordinance, adopted in 2019.
• City of McCall Comprehensive Plan, adopted in January 2018, the goals of which that
relate directly to hazard mitigation planning are described in Section 2.7.4. An action
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project in that plan is to develop a hazard mitigation plan for the city, in coordination
with Valley County. This action is also listed among the mitigation strategies in this plan
(Table 5.7)
• City of Cascade Comprehensive Plan, adopted in 2018.
• City of Cascade Floodplain Ordiance, adopted in 2019.
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7 Plan Maintenance
7.1 Overview
The HMP is a living document that guides action over time, and it is vital the plan is actively
engaged and maintained throughout its five-year lifecycle. As conditions change, new
information becomes available, or actions are successfully implemented or challenged, plan
adjustments may be necessary to maintain relevance and operationality. This section describes
the procedures to monitor, evaluate, and update the HMP in addition to continued public
involvement in hazard mitigation.
7.1.1 Summary of Revisions
Major revisions made to this section in the 2020 update include:
• Section IV. was reorganized into a discrete section;
• The procedures to monitor, evaluate, and update the plan were reviewed and revised; and
• The procedures for continued public participation were reviewed and revised.
7.1.2 FEMA Requirements
This section adheres to and fulfills the following regulations:
• 44 CFR§201.6(c)(4)—The plan shall include the following:
o (i) — A section describing the method and schedule of monitoring, evaluating, and
updating the mitigation plan within a five-year cycle.
o (iii) —A discussion on how the community will continue public participation in the plan
maintenance process.
7.2 Plan Monitoring, Evaluation, & Update
Plan maintenance is the process the planning committee establishes to track the progress of the
plan's implementation and to inform future plan updates within a five-year cycle. These
procedures help ensure the mitigation strategy is implemented according to the plan; provide a
foundation for ongoing hazard mitigation across all participating jurisdictions; standardize long-
term monitoring of hazard and risk-related activities; help integrate mitigation into department
roles; and maintain momentum through continued engagement and accountability.
Plan maintenance will primarily be coordinated and led by Valley County Emergency
Management (or an official designee), and will be accomplished through annual meetings in
addition to a five-year evaluation. Valley County Emergency Management (or an official
designee) will schedule, publicize, and lead the annual meetings and the five-year evaluation,
with additional coordination undertaken by the official designee of the adopting jurisdictions:
• Valley County— Floodplain Administrator, Road Dept representative
• City of McCall —City Manager
• City of Donnelly—Mayor
• City of Cascade —Mayor
• Representatives of each fire district (Cascade, Donnelly, McCall)
All meeting minutes, press releases, and other documentation of revisions should be kept on
record by Valley County Emergency Management.
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7.2.1 Monitoring Implementation
Plan monitoring refers to charting and tracking the implementation of the plan over time. During
the annual meetings, the entities responsible for the mitigation strategy will report on the
progress of implementation of actions (see Section II), noting both successes and challenges
encountered or foreseen. Monitoring will be captured by the Valley County Emergency Manager
and compiled into a report to be used in plan updates.
7.2.2 Evaluating Implementation
Evaluating means assessing the effectiveness of the plan at achieving its stated purpose and
goals. During the annual meetings and the five-year plan evaluation and update, the planning
committee in addition to all participating stakeholders will evaluate progress of the following
items:
• The number of actions listed in the mitigation strategy completed (see Section Il.
Mitigation Strategy);
• Integration of hazard mitigation into other planning mechanisms; and
• Opportunities for new and additional mitigation actions.
The annual evaluation will be captured by the Valley County Emergency Manager and compiled
into a report to be used in plan updates.
7.2.3 Updating the Plan
The plan must be reviewed and revised least once every five years to reflect changes in
development, progress in local mitigation efforts, and changes in priorities. The Valley County
Emergency Manager will be responsible for the five-year update. Prior to the five-year
anniversary of plan adoption, the Emergency Manager will seek local, state, and/or federal
funding to update the plan (if necessary), will initiate the plan update by convening the planning
committee, and coordinate across the adopting jurisdictions and stakeholders to ensure
participation and engagement. During the update process, the planning committee will revisit
and update the following information:
• Local, state, and/or federal policy related to emergency management, with focus paid to
hazard mitigation;
• Completed mitigation actions, identify new actions, and conduct a comprehensive
evaluation of mitigation priorities and programs;
• Identify avenues for successful mitigation implementation, challenges and limitations
encountered, and methods to overcome challenges;
• Review and update mitigation-related capabilities and resources specific to each adopting
jurisdiction and participating stakeholder with roles in emergency management;
• Incorporate additional or updated demographic and socioeconomic data of the county
and its jurisdictions;
• Review and incorporate any new planning documents, ordinances, codes,and regulations
that have been developed by the county and its jurisdictions;
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• Update the hazard profiles—specifically the risk and vulnerability assessments of each
hazard and jurisdiction—noting any major changes to the hazard type, location, and
extent, or mitigation projects that have altered vulnerability to the hazard;
• Local and regional hazard occurrences, specifically those with associated direct and/or
indirect losses and repetitive/recurring losses to people, structures, and infrastructure;
and
• Update and/or incorporate additional risk analysis models and data, such as an updated
parcel data, new construction projects, development trends, population vulnerabilities,
changing risk potential, etc.
7.3 Continued Public Participation
The Valley County Commissioners and Valley County Emergency Manager are jointly responsible
for continued public involvement in hazard mitigation. Additionally, an official designee from
each jurisdiction is responsible for coordinating continued public engagement over the five-year
lifecycle of the plan:
• City of McCall —City Manager
• City of Donnelly—Mayor
• City of Cascade —Mayor
The designees will hold a public meeting as part of each annual monitoring/evaluation or when
deemed necessary by the planning committee. The meetings will provide the public a forum for
which they can express concerns, opinions, or ideas about the plan. The County Commissioner's
Offices will be responsible for using county resources to publicize the annual meetings and
maintain public involvement through the county's webpage and local newspapers.The public will
have the opportunity to provide feedback about the plan at meetings of the County Board of
Commissioners. In additional, copies of the plan will be kept at the County Courthouse.The plan
includes contact information for Valley County Emergency Management,which is responsible for
keeping track of public comments and incorporating public feedback into the plan when
necessary.
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