HomeMy Public PortalAbout20230404 - Agenda Packet - Planning and Natural Resources (PNR)
MIDPENINSULA REGIONAL OPEN SPACE DISTRICT
PLANNING AND NATURAL RESOURCES COMMITTEE
Tuesday, April 4, 2023
2:00 PM
A G E N D A
Midpeninsula Regional Open Space District Committee meetings are held in person at the
District’s Administrative Office, and by teleconference pursuant to Government Code Section
54953. Members of the public can attend and participate in the meeting using the following
methods:
1. In-person at the Midpen Administrative Office – 5050 El Camino Real, Los Altos, CA 94022.
2. Viewing the meeting in real-time at https://openspace.zoom.us/j/83370510357 or listening to the
meeting by dialing (669) 900-6833 or (346) 248-7799 (Meeting ID 833 7051 0357).
Members of the public may submit written comments to be provided to the Committee, or register to make
oral comments, as follows:
• Written comments may be submitted via the public comment form at: https://www.openspace.org/public-
comment.
• Requests to provide oral comment must be submitted prior to the time public comment on the agenda
item is closed. Requests to provide oral comments may be made by:
o Submitting a request through the public comment form at: https://www.openspace.org/public-
comment for those attending via Zoom.
o Submitting a request via the paper-based public comment form at the meeting for those attending
in-person.
• Any comments received after the deadline will be provided to the Board after the meeting.
MIDPENINSULA REGIONAL OPEN SPACE DISTRICT PLANNING AND NATURAL RESOURCES
COMMITTEE
ROLL CALL
COMMITTEE MEMBERS: CYR, GLEASON, HOLMAN
ADOPTION OF AGENDA
ORAL COMMUNICATIONS
This portion of the agenda is for members of the public to comment on items not on the agenda; however,
the Brown Act (Open Meeting Law) does not allow action by the Committee on items not on the agenda.
Individuals are limited to one comment during this section.
1. Approve the March 21, 2023 Planning and Natural Resources Committee Meeting Minutes
2. Highway 35 Multi-Use Trail Crossing and Parking Feasibility Study located at and near the North
Ridge Parking Area of Purisima Creek Redwoods Open Space Preserve – Review of Project Goals
and Existing Conditions/Site Opportunities and Constraints Analysis (R-23-38)
Staff Contact: Brittany Wheatman, Planner II, Planning Department
General Manager’s Recommendations:
1. Receive a presentation on the Highway 35 Multi-use Trail Crossing and Parking Feasibility Study,
including Project Goals and the Existing Conditions/Site Opportunity and Constraints Analysis.
2. Provide feedback on parking capacity and multimodal access elements to evaluate through the next
phase of Project work as part of the development of parking area conceptual design alternatives.
ADJOURNMENT
In compliance with the Americans with Disabilities Act, if you need assistance to participate in this meeting,
please contact the District Clerk at (650) 691-1200. Notification 48 hours prior to the meeting will enable the
District to make reasonable arrangements to ensure accessibility to this meeting.
Written materials relating to an item on this Agenda that are considered to be a public record and are distributed
to Committee members less than 72 hours prior to the meeting, will be available for public inspection on the
District’s website at http://www.openspace.org.
CERTIFICATION OF POSTING OF AGENDA
I, Maria Soria, District Clerk for the Midpeninsula Regional Open Space District (MROSD), declare that the
foregoing agenda for the meeting of the Planning and Natural Resources Committee was posted and available for
review on March 30, 2023, at the Administrative Offices of MROSD, 5050 El Camino Real, Los Altos
California, 94022. The agenda and any additional written materials are also available on the District’s website at
http://www.openspace.org.
Maria Soria, MMC, CPMC
District Clerk
MIDPENINSULA REGIONAL OPEN SPACE DISTRICT
PLANNING AND NATURAL RESOURCES COMMITTEE
Administrative Office
5050 El Camino Real
Los Altos, CA 94022
Tuesday, March 21, 2023
DRAFT MINUTES
CALL TO ORDER
Director Cyr called the meeting of the Planning and Natural Resources Committee to order at
1:00 p.m.
ROLL CALL
Members present: Jed Cyr, Craig Gleason
Members absent: Karen Holman
Staff present: General Manager Ana M. Ruiz, General Counsel Hilary Stevenson,
Assistant General Manager Susanna Chan, Assistant General Manager
Brian Malone, Chief Financial Officer/Director of Administrative Services
Stefan Jaskulak, District Clerk Maria Soria, Planning Manager Jane Mark,
Senior Planner Tina Hugg, Planner II/ Resource Management Specialist I
Arianna Nuri, Planner IIII Ashley Mac
ADOPTION OF AGENDA
Motion: Director Gleason moved, and Director Cyr seconded the motion to adopt the agenda.
ROLL CALL VOTE: 2-0-0 (Director Holman absent.)
ORAL COMMUNICATIONS
Acting Deputy District Clerk Loana Lumina-Hsu reported there were no public speakers for this
item.
COMMITTEE BUSINESS
1. Select Committee Chair for 2023 Calendar Year
Planning and Natural Resources Committee Page 2
March 21, 2023
Public comment opened at 1:02 p.m.
Ms. Lumina-Hsu reported there were no public speakers for this item.
Public comment closed at 1:02 p.m.
Motion: Director Gleason moved, and Director Cyr seconded the motion to select Director Cyr
as Committee Chair for Calendar Year 2023.
ROLL CALL VOTE: 2-0-0 (Director Holman absent.)
2. Approve the December 13, 2022 Planning and Natural Resources Committee
Meeting Minutes.
Public comment opened at 1:03 p.m.
Ms. Lumina-Hsu reported there were no public speakers for this item.
Public comment closed at 1:03 p.m.
Motion: Director Cyr moved, and Director Gleason seconded the motion to approve the
December 13, 2022 Planning and Natural Resources Committee meeting minutes.
ROLL CALL VOTE: 2-0-0 (Director Holman absent.)
3. Hawthorns Area Plan - Review of Technical Reports and Public Access Working
Group structure and recruitment process (R-23-35)
Director Holman joined the meeting at 1:09 p.m.
Senior Planner Tina Hugg and Planner II/Resource Management Specialist I Arianna Nuri
provided the staff presentation on the Hawthorns Area Plan, reviewing the technical reports and
the proposed structure and recruitment process for a Public Access Working Group (PAWG).
Ms. Nuri presented the project goals and objectives previously approved by the Board and
described the purpose of the proposed PAWG.
Chair Cyr opened the item to questions from the public who were in-person and present in the
audience.
Public comment opened at 1:14 p.m.
Olga Bright asked the definition of cultural in the presentation.
Ms. Nuri provided a definition of cultural resources as items that include non-natural
components of the property such as those with archeological or historical significance.
Public comment closed at 1:15 p.m.
Planning and Natural Resources Committee Page 3
March 21, 2023
Ms. Nuri continued the staff presentation on the existing conditions and opportunities and
constraints report, including public access, local and regional connectivity, historic and cultural
resources, and operations and maintenance. Ms. Nuri also presented the transportation study
objectives, data collection and background review, and the existing transportation conditions
memo, including traffic volume, existing multimodal access, and line of sight assessments.
Director Cyr requested and received information on the access to the driveways on Alpine Road
and Los Trancos Road.
Ms. Hugg explained additional analysis will need to be completed for the driveway.
Director Gleason requested explanation of the public access analysis for the Los Trancos Road
driveway.
Ms. Nuri explained that the Los Trancos Road driveway is not appropriate for general public use,
but other uses such as emergency or maintenance may be appropriate.
Director Gleason requested clarification on bicycle accidents related to the automobile right-of-
way as discussed in the traffic study list of accidents.
Ms. Hugg confirmed that for the bicycle accidents related to the automobile’s right-of-way, they
were related to automobiles having the right-of-way.
Director Holman asked if the Town of Portola Valley provided comments on the access off
Alpine Road.
Ms. Nuri confirmed the District is in discussions with the Town of Portola Valley as part of the
stakeholder and public engagement.
General Manager Ana Ruiz explained the traffic study results for Alpine Road and Los Trancos
Road were recently received and there are ongoing discussions with the Town of Portola Valley.
The findings will need to be discussed with the Town given the scenic designation of Alpine
Road.
Ms. Hugg confirmed the Town of Portola Valley has not raised any issues thus far.
Ms. Nuri continued the staff presentation on the public access framework, including
considerations related to the protection of natural resources, cultural resources, and aesthetic
resources, as well as important factors required for public access and operations and
maintenance.
Public comment opened at 1:39 p.m.
Jerry Wittenauer spoke in support of the project as an equestrian trail rider.
Public comment closed at 1:40 p.m.
Planning and Natural Resources Committee Page 4
March 21, 2023
Ms. Hugg continued the staff presentation on the Hawthorns Public Access Working Group
purpose, composition, and proposed working format. The composition will include
representation from the County of San Mateo, County of Santa Clara, thematic working group
members, board liaison, town liaison, and meeting facilitator.
Director Holman inquired why one board liaison for the Hawthorns PAWG is proposed
compared to two board liaisons for the La Honda PAWG.
Ms. Hugg explained the Hawthorns project covers a smaller area than the La Honda project and
staff scaled down the representation. Additionally, the Hawthorns PAWG will include
representation from the Town of Portola Valley.
Director Holman expressed gratitude in the explanation of the Hawthorns project area coverage
and Town of Portola Valley representation.
Ms. Hugg continued the staff presentation on the ward stakeholder recruitment process.
Director Holman suggested each director submit a candidate and the Board of Directors would
review all submissions to select the best qualified candidates.
Director Cyr commented constituents in wards further away from the Hawthorns site may not
have as much stakeholder interest compared to constituents who live closer to the Hawthorns
site. Director Cyr agreed with the suggested inclusion of constituent representation from all
wards to provide a diverse point of view.
Director Cyr expressed support for the same format with a larger working group, with the Board
selecting a representative from their ward.
Director Gleason suggested Director selection of a constituent with a higher stakeholder interest
even if not residing within the Director’s ward.
Ms. Ruiz stated the property is smaller in terms of acreage but there are elements that are
attractive to members of the public not living in the area, including it is accessible via roads and
highways, and the grades are gentle and less strenuous.
Director Holman agreed the property is attractive and explained the location is in an urbanized
area of the Hawthorns property.
Director Holman suggested staff present the process and explain the two options to the full
Board.
Ms. Hugg requested Committee confirmation for the options to present to the full Board for the
ward representatives: (1) Each Director submits a candidate to be automatically appointed to the
ward stakeholder working group; or (2) Each Director proposes a candidate, and the Board
reviews the seven candidates and selects a certain number of stakeholders to be appointed to the
ward stakeholder group.
Planning and Natural Resources Committee Page 5
March 21, 2023
Ms. Ruiz provided additional information on the La Honda PAWG on the deliberate intent to
have both local and broader geographical voices represented in working group to ensure robust
deliberations that include a wide array of perspectives.
Ms. Hugg confirmed the proposed intent is to have representation of both local and broader
geographical perspectives in the working group, hence the ward representatives.
Director Gleason expressed concern finding a person to nominate who resides further away from
the Hawthorns project site. Director Gleason mentioned constituent proximity.
Director Cyr expressed concern with balancing representation amongst local community
members and those who can represent the broader District.
Director Holman requested staff present the revised proposal that incorporates Committee
feedback.
Ms. Hugg confirmed the revised ward stakeholder recruitment process proposal, with Committee
feedback, is as follows:
1. Each Director selects one person and the person is automatically appointed to the
PAWG.*
* Question for the full Board’s consideration: Does the person need to represent the Ward
or is this at each Director’s discretion?
2. Each director nominates a representative and the full Board interviews and/or reviews an
application/interest form and selects the top four candidates.*
* Question for the full Board’s consideration: Does the person need to represent the Ward
or is this at each Director’s discretion?
Director Holman supported an application or interest form process over interviews.
Director Cyr stated the full Board would appreciate having input on the process.
Ms. Hugg continued the staff presentation on the working group member recruitment process,
including the application, virtual informational meetings, public outreach efforts, and candidate
selection for interviews.
Candidate Selection for Interviews
Scenario 1: Less than or Equal to 10 Application
• The full Board would review all applications and interview all applications (approx. 15
min per interview).
Scenario 2: More than 10 Applications
• Option A: Staff would review the application and recommend the top ten applicants to
interview with the full Board.
• Option B: Each Board Director would review the applications and select the top ten
applicants to interview with the full Board.
• Option C: The Board would approve the formation of an Ad Hoc Committee to review
the applications and select the top ten applicants to interview with the full Board.
Planning and Natural Resources Committee Page 6
March 21, 2023
Director Gleason expressed support for Scenario 2: Option A.
Director Holman requested and received information on the process of application review and
legibility.
Ms. Hugg explained current applications do not have limits on sections.
Director Holman suggested illegible applications are discarded; the applications state
applications not clearly readable will be discarded; and page limitations, including font size.
Director Holman stated applicants should focus on qualification and experience that marries the
task at-hand.
Ms. Hugg stated staff will take the Director suggestions and check the online form for character
and word limits, and staff will have a format that captures the limit and legibility.
Director Cyr expressed agreement with Director Holman’s suggestions.
Director Gleason asked if the application can be exclusively online.
Ms. Hugg explained the District will offer a hard-copy application form for diversity, equity, and
inclusivity, and previously applicants did mail an application for the La Honda PAWG.
Director Holman expressed support for Scenario 2: Option B or Option C, as it is representative
process.
Director Cyr asked how many applications were reviewed of La Honda PAWG.
Ms. Hugg stated La Honda PAWG received eleven applicants with two selected as stakeholders
and the Board selected nine.
Ms. Ruiz and Ms. Hugg explained there is a higher level of interest in the Hawthorns project.
Ms. Ruiz states the neighborhood meeting had 60 attendees.
Director Holman requested applications include verbiage on how to obtain assistance with
completing the application, and on expected level of commitment for the PAWG (number and
hours of meetings).
Directors Cyr, Gleason, and Holman discussed the best options to forward to the Board and the
threshold of applications. Director Holman suggested Option B for a lower number of
applications and Option C for above the threshold.
Directors Cyr, Gleason, and Holman agreed to forward to the full Board Scenario 2: Options B
and C, with Scenario 2: Option C having a conditional formation of an Ad Hoc Committee if the
applications reach above a threshold.
General Counsel Hilary Stevenson stated previously the Board of Directors authorized the
General Manager to call the formation of the Ad Hoc Committee when the time is right.
Planning and Natural Resources Committee Page 7
March 21, 2023
Director Cyr expressed agreement with Ms. Stevenson.
Ms. Stevenson reminded the Committee that the Board President has the ability to select the Ad
Hoc Committee members.
Ms. Hugg confirmed forwarding Scenario 1 and Scenario 2: Options B and C, with Scenario 2:
Option C having a conditional formation of an Ad Hoc Committee if the applications reach
above a threshold.
Ms. Hugg continued the staff presentation explaining the interview and appointment process,
candidate interviews, and working group appointments. Following Working Group Formation,
Ms. Hugg explained the operations of the working group, tentative meeting schedule, and
meeting objectives. Ms. Hugg explained the inclusion of Town of Portola Valley staff in the
process thus far.
Director Holman requested and received additional information on the Town of Portola Valley
Ad hoc and interface with the District’s process.
Ms. Hugg provided additional information on the Town of Portola Valley’s ten committees and
six of the key committees each have one representative aggregated into an Ad Hoc Committee.
Staff will meet with the Town of Portola Valley Ad Hoc Committee. Ms. Hugg explained the
presentations of materials will be materials previously presented to the District’s Planning and
Natural Resources Committee or Board.
Director Holman asked if the meetings were public.
Ms. Hugg confirmed the meetings are not public.
Director Holman asked and received clarification on the Town of Portola Valley Ad Hoc
Committee input.
Ms. Hugg explained the Town of Portola Valley Ad Hoc Committee is part of the engagement
process and will be invited to the District working group meetings.
Director Holman asked, and Ms. Hugg confirmed, the Town of Portola Valley Ad Hoc
Committee members are appointed and thus could not serve on the District’s Hawthorns working
group.
Director Holman asked, and Ms. Hugg confirmed, Town of Portola Valley Ad Hoc Committee
members would be able to provide feedback during the District’s Hawthorns working group
meetings.
Director Gleason asked, and Ms. Hugg confirmed, the Town of Portola Valley Ad Hoc
Committee is for the Hawthorns area.
Planning and Natural Resources Committee Page 8
March 21, 2023
Director Holman asked if the Town of Portola Valley Ad Hoc Committee reports to the Town of
Portola Valley Board and Commissions for feedback, and how will the District receive
information and feedback.
Ms. Hugg explained the Town of Portola Valley Ad Hoc Committee members would take
updates back to their committees. The Town of Portola Valley Ad Hoc Committee will send
alternates if the primary representative is unable to attend. The exact logistics and coordination
with the Town of Portola Valley is in development.
Director Holman requested clarification if there will be work product from Town of Portola
Valley Ad Hoc Committee for presentation and utilization by the PAWG.
Ms. Hugg explained that feedback from the Town of Portola Valley Ad Hoc Committee and the
District’s Hawthorns PAWG will be included in staff reports and received by the Board of
Directors.
Director Gleason asked clarification of formal representative of the Town of Portola Valley Ad
Hoc Committee on the District’s Hawthorns PAWG.
Ms. Hugg explained the Town of Portola Valley Ad Hoc Committee is a conduit to the Town of
Portola Valley committees and the Town of Portola Valley Ad Hoc Committee will provide
feedback at the District’s PAWG meetings. The Town liaison is the official Town of Portola
Valley representative on the District’s Hawthorns PAWG and is a Town of Portola Valley
Council member. Ms. Hugg stated the Town of Portola Valley Town Manager felt this was the
most effective way to share information and gather feedback from the various Town of Portola
Valley committees.
Director Cyr expressed support for inclusion of the Town of Portola Valley Ad Hoc Committee
in the District’s Hawthorns process.
Public comment opened at 2:54 p.m.
Bonnie Crater stated she serves on the Town of Portola Valley Nature and Science Committee
and spoke on her attendance on the District’s process thus far. Ms. Crater explained the Nature
and Science Committee is interested in building a modest nature center on the property. Ms.
Crater expressed appreciation for the staff report.
Dave Evans asked the committee for the selection criteria of applicants (local family, mountain
bikers, etc.) and the various perspectives that applicants can bring to the working group. Mr.
Evans suggested setting criteria to represent a wide view point.
Kristi Corley stated she did not see the Planning and Natural Resources Committee meeting on
the Town of Portola Valley calendars and requested the District meetings be listed on the town
calendar so attendees can provide comments. Ms. Corley asked for the District’s Town contact.
She requested project planning keep housing sites and residences of Alpine Road in mind. She is
not aware of the Town of Portola Valley Ad Hoc Committee formation. She spoke in support of
open space, bike and pedestrian safety, and trails.
Planning and Natural Resources Committee Page 9
March 21, 2023
In response to public comments, Ms. Hugg explained the District communicated with Town
Manager Jeremy Dennis, and activities and events with Town Clerk Melissa Thurman. However
due to Town of Portola Valley staffing changes, the current contact is now the Interim Town
Manager Corie Stocker. Staff will discuss with the Town on how best to notify Town citizens
about future meetings. Ms. Hugg explained the application criteria is mentioned in Attachments
5 and 6 of the agenda report. Ms. Hugg explained the Town of Portola Valley Ad Hoc
Committees are the Town Meetings and will share feedback received today to Town of Portola
Valley staff. Staff noted Alpine Road is in the scenic corridor, which is included in the existing
conditions and opportunities and constraints analysis report. The Town of Portola Valley Ad Hoc
Committee representation includes Open Space; Nature and Science; Historic Resources; Trails
and Paths; Conservation; Bicycle, Pedestrian, and Traffic Safety; and Parks and Recreation. The
Town of Portola Valley Ad Hoc Committee was formed by the Town Manager.
Ms. Ruiz reminded members of the public can view the packet with attachments on the District’s
website.
Ms. Hugg stated there is a Hawthorns Area Plan project website with additional information.
Public comment closed at 3:06 p.m.
Chair Cyr called for a recess at 3:08 p.m.
Chair Cyr resumed the meeting at 3:14 p.m. All committee members were present.
Ms. Hugg continued the staff presentation for conclusion and next steps.
Director Holman asked for an explanation on the interface between the public access working
group and the site planning for the historic complex, and the timing of the historic complex.
Ms. Hugg explained that the PAWG will look at trail connections to the historic complex and
that trails to the historic complex will likely be phased.
Director Holman requested clarification on Phase II.
Ms. Hugg explained Phase I is the Hawthorns Area Plan and Phase II is the connection to the
complex.
Ms. Ruiz explained the current status of investigations regarding the Hawthorns Historic Area,
including the completion of a structural assessment for each building and various disposition
options with costs estimates for all 13 buildings. Staff is currently reviewing the information and
is preparing to solicit input on the various options from the Town of Portola Valley staff. All of
this information will be brought to the Board of Directors for consideration.
Director Holman inquired on the timing.
Ms. Ruiz stated the goal is to bring forward the information to the Town of Portola Valley in Fall
2023, and, unless there are additional studies, bring the information to the Board by end of 2023.
Director Holman asked about the potential partner.
Planning and Natural Resources Committee Page 10
March 21, 2023
Ms. Ruiz explained that a potential partner is interested in potential public programming for the
site.
Ms. Hugg continued the staff presentation with the next steps and stated staff will bring the
Committee’s forwarded recommendations to the Board on April 26, 2023.
Director Holman expressed confidence in staff based on the success of the La Honda Public
Working Group.
Director Gleason expressed appreciation for the staff presentation and explanations.
Motion: Director Cyr moved, and Director Gleason seconded the motion to approve the motion
to
1. Forward, with any final modifications as directed by the Planning and Natural Resources
Committee, the following technical reports to the full Board of Directors for review and
acceptance:
a. Hawthorns Area Existing Conditions/Opportunities and Constraints Report
b. Hawthorns Area Existing Transportation Conditions Technical Memo
c. Hawthorns Area Public Access Framework
2. Forward, with any final modifications as directed by the Planning and Natural Resources
Committee, the Hawthorns Area Public Access Working Group composition,
recruitment, and formation strategy to the full Board of Directors for review and
approval.
ROLL CALL VOTE: 3-0-0
ADJOURNMENT
Chair Cyr adjourned the meeting of the Planning and Natural Resources Committee at 3:25 p.m.
Loana Lumina-Hsu
Acting Deputy District Clerk
Rev. 3/15/21
PLANNING & NATURAL RESOURCES COMMITTEE
R-23-38
April 4, 2023
AGENDA ITEM 2
AGENDA ITEM
Highway 35 Multi-Use Trail Crossing and Parking Feasibility Study located at and near the
North Ridge Parking Area of Purisima Creek Redwoods Open Space Preserve – Review of
Project Goals and Existing Conditions/Site Opportunities and Constraints Analysis
GENERAL MANAGER’S RECOMMENDATIONS
1. Receive a presentation on the Highway 35 Multi-use Trail Crossing and Parking Feasibility
Study, including Project Goals and the Existing Conditions/Site Opportunity and Constraints
Analysis.
2. Provide feedback on parking capacity and multimodal access elements to evaluate through
the next phase of Project work as part of the development of parking area conceptual design
alternatives.
SUMMARY
The Highway 35 Multi-Use Trail Crossing and Parking Feasibility Study (Project) is a
partnership between the Midpeninsula Regional Open Space District (District), San Francisco
Public Utilities Commission (SFPUC), Bay Area Ridge Trail Council (Ridge Trail Council) and
Peninsula Open Space Trust (POST). The Project is evaluating a multi-use trail crossing location
and connector trail in the northeastern reaches of Purisima Creek Redwoods Open Space
Preserve (Purisima, Preserve), as well as the potential expansion of the North Ridge parking
area. At the April 4, 2023 Planning and Natural Resource (PNR) Committee meeting, staff will
present the Project goals and the initial findings of the feasibility study, including results from
the Existing Conditions/Opportunities and Constraints Analysis. In addition, staff will seek
feedback from the PNR Committee on the parking capacity and multimodal access elements to
evaluate through the next phase of Project work as part of developing the parking area
conceptual design alternatives.
BACKGROUND
The District is conducting a feasibility study to identify a trail crossing location from the
Purisima North Ridge parking area across Skyline Boulevard (Highway 35) to connect existing
segments of the Bay Area Ridge Trail within Purisima, west of Highway 35, to a new segment of
the Bay Area Ridge Trail planned on the east side of Highway 35 (Ridge Trail Extension). The
feasibility study will also analyze the potential expansion of the North Ridge parking area to
serve visitors to both the existing Preserve trailhead and to the proposed Ridge Trail Extension.
R-23-38 Page 2
The Highway 35 Multi-use Trail Crossing and Parking Study (Project) is a partnership between
the District, SFPUC, Ridge Trail Council, and POST.
DISCUSSION
Project Goals
The intent of the Project is to enhance regional connectivity through a multi-use trail crossing
that will allow access to trails on both sides of Highway 35 and to identify ways to reconfigure
and increase parking capacity at the North Ridge parking area. Project goals and strategies have
been identified to guide the development of Project elements and evaluate Project success.
Goal 1: Support the implementation of the regional Bay Area Ridge Trail.
Strategies:
• Identify a multi-use trail crossing and trail spur location to connect the SFPUC’s new
segment of the Bay Area Ridge Trail to the Preserve and the existing Ridge Trail
segment within the Preserve.
• Maximize safety and minimize neighbor impacts when evaluating multi-use trail
crossing locations and infrastructure.
• Develop the multi-use trail crossing and spur trail to accommodate low-intensity
recreational use by hikers, bicyclists and equestrians, consistent with Bay Area Ridge
Trail corridor goals.
• Collaborate with partner agencies to complete the planning, design and
implementation of the multi-use trail crossing and spur trail.
Goal 2: Improve public access and visitor experience at Purisima’s North Ridge trailhead
using ecologically sensitive design, construction practices, and long-term
maintenance and management.
Strategies:
• Add parking capacity through the reconfiguration of existing parking spaces and
expansion of the North Ridge Parking Area.
• Improve the existing trailhead amenities, such as replacing the existing restroom with
a new ADA compliant vault restroom, replacing dated signboards with current
standard design, and adding bicycle parking.
• Incorporate Transportation Demand Management Strategies consistent with the
Board-approved Purisima Multimodal Access Study.
• Design recreational amenities to protect the scenic corridor.
• Maximize safety and minimize neighbor impacts when evaluating the multi-use trail
crossing, parking enhancements and vehicle circulation.
• Maintain routine patrols and maintenance and use adaptive management to address
unforeseen issues that arise from increased visitation to the North Ridge trailhead.
Existing Conditions
The Project site includes an area west of Highway 35 within Purisima, comprised of the existing
North Ridge parking area and adjacent open areas west of the parking area. The Project site also
includes the Caltrans Highway 35 right-of-way and approximately four acres of SFPUC
Watershed lands east of Highway 35 for the spur trail study area.
R-23-38 Page 3
The North Ridge parking area and trailhead is the northernmost entry point into Purisima,
located along Highway 35, and currently provides public access to hiking, biking, and equestrian
trails within the Preserve. Purisima also contains existing segments of the Bay Area Ridge Trail,
of which these segments contribute to over 400 miles (and counting) of existing multi-use trail
that follow the ridgelines encircling the San Francisco Bay. A new alignment of the Bay Area
Ridge Trail (Ridge Trail Extension) will be constructed on SFPUC Watershed lands east of the
North Ridge trailhead, posing an opportunity to connect Purisima and its Bay Area Ridge Trail
segment to the new trail extension through the Project’s multi-use trail crossing on Highway 35.
With the implementation of this multi-use trail crossing, the North Ridge parking area can also
serve as the southern staging area for future visitors of the Ridge Trail Extension.
The North Ridge trailhead is surrounded by a rural, forested setting, primarily comprised of
redwood forest with some annual grassland and Monterey cypress woodland. The area in the
vicinity of the Project site is also sparsely populated with single family residences and businesses
along the Highway 35 corridor. The existing North Ridge parking area is an unstriped gravel lot
that can accommodate 41 standard parking spaces and 2 ADA parking spaces. Equestrian
parking at the North Ridge lot is accommodated along the northwest boundary of the parking
area, with space for approximately two equestrian trailers. The North Ridge trailhead includes
standard trailhead amenities such as an equestrian hitching post, map and sign boards, a boot
brush, and a single-stall vault restroom. As with many other District Preserves, the North Ridge
trailhead receives peak visitation on weekends and the parking area, which currently only serves
visitors to Purisima, frequently reaches capacity during peak visitation.
Adjacent to the North Ridge parking lot is an open, flat area (upper expansion area) that is
currently used as a helicopter landing zone for CalFire emergency response. Further west of this
open area, the land slopes down and levels out to another open, flat area (lower expansion area)
adjacent to a District employee residence. This lower expansion area can be accessed from the
existing North Ridge parking lot via a separate driveway along the Preserve’s north property
boundary.
Technical Studies
District staff contracted with professional consulting firms to complete various technical studies
to analyze the biological, cultural, traffic, and topographic characteristics of the Project area. The
findings of these studies are summarized below:
Biological Resources Survey
AECOM conducted a thorough Biological Resources Survey to identify any existing or potential
biological resources within the Project area. This survey did not uncover any special-status
wildlife species, nesting birds or raptors, aquatic resources, roosting bats, or other sensitive
biological resources within the Project area. A Dusky-Footed Woodrat midden was found at a
distance, about 250 feet from the Project area, which is unlikely to be affected by the Project.
Due to the Project site’s proximity to Huddart County Park, which is designated critical habitat
for the endangered marbled murrelet, District staff also conducted a site assessment for marbled
murrelet and consulted with California Department of Fish and Wildlife (CDFW) about the
potential need for special species protections. However, based on results of the site assessment
and discussions with CDFW, both the District and CDFW staff confirmed that no suitable
murrelet habitat is located within or in the vicinity of the Project area.
R-23-38 Page 4
Phytophthora Risk Assessment
AECOM also prepared a Phytophthora Risk Assessment in February 2023 to identify any risk of
soil pathogen infection related to Project and to provide specific mitigation and best management
practices. Analysis from this study found that the Project area within Purisima has relatively low
levels of contamination risk, while areas east of Hwy 35 are highly receptive to potential
contamination and are considered sensitive sites.
Cultural and Historic Resource Surveys
Cogstone Resource Management, Inc., conducted cultural and historic resource surveys in the
fall and winter of 2022 to determine if any cultural or historic resources were present within the
Project area that may be affected by the Project. No archaeological resources were observed
during the survey and the background research did not find any previously recorded cultural or
historical resources located within the Project area. A Sacred Lands File search identified one
tribal band, which the District will contact for further information and guidance on any tribal
cultural resources that may be present in the vicinity of the Project. The District will contact the
tribe directly once preliminary concept plans are available and again when a design alternative is
selected and the Project proceeds into the environmental review phase, as required by the
California Environmental Quality Act (CEQA) and in accordance with Assembly Bill (AB) 52
consultations. No archaeological monitoring is anticipated due to the geological age of the soils
as well as the absence of any known cultural resources within the Project area. In addition, a
pedestrian survey of the Project site performed by Cogstone in the fall of 2022 did not identify
archaeological resources within the Project site. An Historic Resources Evaluation was also
conducted for the nearby onsite employee residence that was built over 50 years ago (circa 1948)
given its proximity to the parking area. The residence includes Ranch style architectural elements
such as a low pitch roof with a wide eave overhang. Due to a lack of significance and notable
architectural alteration, the residence was not found eligible for listing at the local, state, or
national level, and no further evaluation is recommended. No changes are proposed for this
residence, which would remain in place as part of the Project and continued to be used as an
employee residence to maintain onsite presence and vigilance of the property.
Traffic Study
TJKM Transportation Consultants (TJKM) evaluated the sight distance conditions for the two
existing parking area driveways and the feasibility/design of a new on-grade trail crossing on
Highway 35. Data collection from April 2022 was used to determine if adequate sight distance is
available for vehicles exiting the existing driveways, and if northbound and southbound vehicles
on Highway 35 have adequate stopping sight distance for a new on-grade trail crossing. TJKM
also reviewed five years of traffic collision data within the vicinity of the project site to inform
the final recommendations. Based on the available information, TJKM concluded that there is a
feasible on-grade trail crossing location immediately adjacent to the existing exit driveway.
TJKM recommends improvements within the right-of-way to maintain site distances and
enhance visibility of the crossing. Furthermore, TJKM concluded that the existing driveway
configuration is the most favorable for ingress and egress. TJKM has sought concurrence with
the California Department of Transportation (Caltrans) on their findings and recommendations.
Caltrans reviewed the findings and requested additional information in the final report, which
was provided by TJKM. Caltrans does not have any further comments at this time. Additional
coordination with Caltrans will be required for future encroachment permits, which would occur
after a Board-approved alternative is selected and analyzed as part of the CEQA environmental
review process. Additional details of the recommended crossing location and roadway
improvements are shown in Attachment 1c.
R-23-38 Page 5
Public Engagement
From 2021 to 2022, the District engaged with stakeholder groups and partners as part of Project-
focused meetings and at meetings that included the Purisima-to-the-Sea project and the Purisima
Multimodal Access Study. These engagement activities were used to gather initial feedback on
existing challenges at the North Ridge parking area and any desired amenities that should be
considered for this parking area. The feedback received during the stakeholder engagement
process has been incorporated into the opportunities and constraints analysis. Key engagement
activities specific to the Highway 35 Multiuse Crossing and Parking Expansion project included:
• Peninsula Trails Team (comprised of regional trails partners and land managers) –
October 19, 2022
• Kings Mountain Association – March 15, 2022 and November 9, 2022
• Fisher Investments (neighboring property) – November 9, 2022
• Stakeholder group meetings – November 15 & 17, 2022
Feedback received includes the following 1:
Theme/Topic General Feedback/Comments
Traffic and Safety • Concerns related to providing a safe pedestrian roadway
crossing due to current vehicle speeds on Highway 35.
• Neighbors would like to see roadway striping and advanced
warning beacon for the trail crossing.
• Concerns related to roadside parking that create potentially
unsafe roadway conditions for pedestrians and vehicles.
• Suggestion to modify the parking area entrance to allow
vehicles to turn into the parking area quickly.
• Suggestion to provide historic traffic accident data in the
vicinity of North Ridge to better understand safety issues.
• Concerns related to foggy conditions on Highway 35 that could
limit visibility.
Parking and Visitor Capacity • Allowing E-bikes within the Preserve may reduce parking
demand.
• Request for better equestrian parking and access at this
trailhead.
• Better/clearer roadway parking signage can discourage parking
along the roadway, which is impacting neighboring properties.
Amenities • Support for the proposed trailhead amenities.
• Suggestion to include emergency response information on
trailhead signage.
General • General support for the Project if concerns are addressed.
• New regional trail connection may result in additional traffic
and trash.
• Concerns regarding relocating the CalFire helicopter landing
zone and how this would impact fire response.
1 This feedback has been received in addition to previous feedback that was presented to the PNR Committee and
the Board as part of the Purisima Multimodal Access engagement on August 2nd, 2022 (see attachment 5) .
R-23-38 Page 6
Site Opportunities and Constraints
Opportunities and Constraints for the Project are developed by analyzing the results of the
technical studies and identifying site conditions that need to be considered for the multi-use trail
crossing, spur trail, and North Ridge parking expansion. Key opportunities and constraints are
summarized below, and additional details can be found in Attachment 1.
Natural Resources:
The biological survey did not uncover any special-status wildlife species, nesting birds or
raptors, aquatic resources, roosting bats, or other sensitive biological resources within the Project
area. Best Management Practices (BMPs) are recommended to avoid any impacts to nearby
biological resources from future construction of the Project, including nesting bird surveys, San
Francisco dusky-footed woodrat midden avoidance buffer, marbled murrelet avoidance and
mitigation measures, BMPs to prevent Phytophthora and other pathogen contamination, and
BMPs related to construction runoff and drainage.
Public Access:
The North Ridge parking area and trailhead currently provide public parking and access to
Purisima, and the overall types of uses at this parking area and trailhead will not significantly
change with the implementation of the Project. The traffic study identified a suitable multiuse
crossing location on Highway 35 as well as roadway improvements to establish a safer crossing
with sufficient lines of sight at this location. The North Ridge trailhead has two potential onsite
locations that can provide additional parking; expansion of the parking area coupled with
multimodal access strategies are expected to significantly alleviate parking demands and
potentially meet anticipated parking needs at this trailhead.
Local and Regional Connectivity:
Existing segments of the Bay Area Ridge Trail within Purisima can be accessed from the North
Ridge trailhead, which makes a multi-use trail crossing at Highway 35 from the planned Ridge
Trail Extension to the North Ridge trailhead a natural and direct connection point.
Cultural and Historic Resources:
The cultural resources survey did not identify any previously recorded cultural resources within
the Project area and no archaeological resources were encountered during the pedestrian survey.
Aside from consultations with the recommended tribe for review of the preliminary concept
plans and during the CEQA environmental review process, no further action is recommended
regarding cultural or archaeological resources. The historic resource evaluation for the onsite
employee residence found that the structure was not eligible for listing at the local, state, or
national level and no further action is necessary for this structure (residence would remain in
place and continue to be used as an employee residence).
Aesthetics:
Highway 35 is a state scenic highway and is therefore subject to both State of California and San
Mateo County policies regulating development along scenic corridors. The Project will direct
new development (parking areas and vault restroom) to areas away from the Highway 35 scenic
corridor zone. There is also an existing vegetated barrier between the Caltrans right-of-way and
the existing parking area, partially screening it from the highway. Changes visible from the
highway may include the upper parking expansion area and the replacement vault restroom,
which would be relocated to a more central location to address ADA barriers. The lower parking
R-23-38 Page 7
expansion area is set further back from the roadway and at a lower elevation as compared to the
existing parking area, making this area less visible from Highway 35.
Operations and Maintenance:
The North Ridge trailhead currently has electrical and cellular service available, which could
support the implementation of new trailhead amenities and infrastructure, such as electric vehicle
charging and real-time parking sensors. The existing vault restroom is in deteriorating condition
and requires replacement with an ADA-accessible model and accessible path to meet ADA
standards. Staff have reached out to the agencies and organizations that may utilize the landing
zone at the upper expansion area, including CalFire, San Mateo County Fire, and the Kings
Mountain Volunteer Fire Department. These organizations are aware of the Project and have not
requested further coordination at this time. In addition, there are other landing zones located in
the vicinity of the Project area that are currently used by these organizations. These nearby
alternative landing zone locations include private properties on Cyprus Ridge Road, less than a
mile north of the Project site, and Tunitas Creek Road, approximately two miles south of the
Project site. The nearest alternative landing zone on District lands is located at El Corte de
Madera Creek Preserve, approximately five miles south of the Project site. Should a Project
alternative be selected for CEQA review that would change the use of the landing zone, District
staff will engage in additional coordination with these agencies at that time to confirm the
landing zone can be formally retired.
Spatial Analysis and Parking Capacity
The Project proposes to expand parking for passenger vehicles and horse trailers. The trailhead
would have amenities typical to District preserves, including a vault restroom, trailhead
signboards, boot brush, bike racks, and equestrian mounting block. The parking lot, trailhead,
and restroom would meet ADA accessibility requirements.
The Committee is asked to provide feedback on the share of passenger vehicle, horse trailer, and
shuttle spaces that should be accommodated as part of the proposed parking expansion design.
The share of spaces is based on the expansion potential that exists at the Upper Area, comprised
of the existing parking area and the adjacent vacant area to the west, and the Lower Area,
comprised of the vacant area adjacent to the employee residence. Staff completed a spatial
analysis for the Upper and Lower Areas, which is detailed below (refer also to Attachment 1c).
The Upper Area could accommodate any of the following scenarios:
Capacity Scenarios Number of
Passenger Vehicle
Parking
Number of Horse
Trailer Parking
Number of Shuttle
Bus Parking
Scenario 1 65 0 0
Scenario 2 45 4 0
Scenario 3 45 0 4
The Lower Area could accommodate any of the following scenarios:
Capacity Scenarios Number of
Passenger Vehicle
Parking
Number of Horse
Trailer Parking
Number of Shuttle
Bus Parking
Scenario 1 15 0 0
Scenario 2 0 2 0
Scenario 3 0 0 2
R-23-38 Page 8
Staff seeks the Committee’s direction on the scenarios to develop final parking program
alternatives, which may be a combination of the scenarios listed above and may include other
parking elements. For example, one possible combination of these scenarios that maximizes all
three uses is to provide 45 passenger vehicles, 2 horse trailer spaces and 2 shuttle spaces in the
Upper Area; and 15 passenger vehicle spaces in the Lower Area. The above scenarios are only to
demonstrate maximum available space at each expansion area and are not the only parking
alternatives that should be considered for the Project.
In addition, the Project will consider the following Transportation Demand Management
strategies (TDMs) recommended in the Purisima Multimodal Access Study that the Board
approved on November 9, 2022. The expectation is that many of these strategies will be suitable
for the site and be incorporated into the design and long-term management of the parking area:
Highest priority TDMs
• Peak period parking reservations/priority parking
• Bicycle parking and facilities (including bicycle repair stations)
• Temporarily redesignate spaces on specific days/times to best meet demands
o May include designating special parking areas temporarily for carpool, equestrian,
shuttle pick-up/drop-off, or other uses
• Real-time parking lot occupancy sensors and signage
• Electric Vehicle (EV) charging infrastructure
Lower priority TDMs
• Vehicle wayfinding signage
• Clearly identify permitted on-street / shoulder parking
• Accommodate future shuttle / transit systems
FISCAL IMPACT
The Fiscal Year 2022-23 budget includes $95,000, which covers consultant, site engineering, and
geotechnical costs through the end of the fiscal year. The Project received $114,000 in grant
funding from the SFPUC for completion of the feasibility study, which was authorized by the
Board in 2020 (Res. 20-32).
This project is not currently funded by Measure AA as it is still within a feasibility stage.
However, implementation of capital improvements may be eligible for Measure AA
reimbursements.
PRIOR BOARD AND COMMITTEE REVIEW
• September 29, 2020: The Legislative, Funding and Public Affairs Committee (LFPAC)
reviewed the partnership agreement and recommended the Board adopt a resolution
authorizing the General Manager to accept $114,000 in grant funding from the SFPUC
for the Project.
o Board Report (R-20-101)
o Minutes
R-23-38 Page 9
• October 28, 2020: The Board adopted a resolution authorizing the General Manager to
accept grant funding for the Project.
o Board Report (Res. 20-32)
o Minutes
PUBLIC NOTICE
Public notice was provided as required by the Brown Act. In addition, public notices were sent
to Preserve neighbors along Highway 35 and interested parties of the Preserve and hiking,
biking, equestrian, accessibility, and regional trails interested parties’ lists.
CEQA COMPLIANCE
The Highway 35 Multi-use Trail Crossing and Parking Feasibility Study is not a project subject
to the California Environmental Quality Act (CEQA). Environmental review is anticipated to
occur in a future fiscal year, pending Board selection of a project design alternative as the CEQA
project description.
NEXT STEPS
With guidance from the PNR Committee, staff will proceed with development of parking area
conceptual design alternatives and return to the PNR Committee and Board according to the
following tentative schedule:
Feasibility Study Milestone Tentative Schedule
PNR Committee Meeting #2
• Presentation of trail crossing recommendations and parking area
conceptual design alternatives. Staff will request feedback from
the PNR Committee on the selection of a preferred alternative
to be forwarded to the Board for consideration.
Summer 2023
Board Meeting
• Presentation of trail crossing recommendations and preferred
parking area conceptual design alternatives
Winter 2023
Future Project Phases Tentative Schedule
Environmental review conducted as part of Purisima Comprehensive
Use and Management Plan
FY 24 and FY 25
Design development, engineering, and permitting FY 25 and FY 26
Attachment(s)
1. Existing Conditions / Opportunities and Constraints Analysis Report
1a. Project Location
1b. Project Study Area
1c. Existing Conditions
1d. On-grade Crossing Recommendations
1e. Spatial Analysis
R-23-38 Page 10
Responsible Department Head:
Jason Lin, PE, Engineering and Construction Department Manager
Jane Mark, AICP, Planning Department Manager
Prepared by:
Scott Reeves, Senior Capital Project Manager, Engineering and Construction Department
Brittany Wheatman, Planner II, Planning Department
Contact person:
Brittany Wheatman, Planner II, Planning Department
Graphics prepared by:
Scott Reeves, Senior Capital Project Manager
Anna Costanza, GIS Technician
Highway 35 Multi-use Trail Crossing and Parking Expansion
1
EXISTING CONDITIONS & OPPORTUNITIES AND CONSTRAINTS
Table of Contents
1.0 Project Background and Goals .......................................................................................................... 2
1.1 Project Background ....................................................................................................................... 2
1.2 Project Goals ................................................................................................................................. 3
2.0 Existing Conditions ............................................................................................................................ 4
2.1 Natural Resources ......................................................................................................................... 4
2.2 Public Access ................................................................................................................................. 4
2.3 Local and Regional Connectivity ................................................................................................... 5
2.4 Cultural Resources ........................................................................................................................ 6
2.5 Aesthetics ...................................................................................................................................... 6
2.6 Operations and Maintenance ....................................................................................................... 6
3.0 Technical Studies............................................................................................................................... 7
3.1 Biological Resources Survey and Phytophthora Risk Assessment ................................................ 7
3.2 Traffic Survey ................................................................................................................................ 8
3.3 Cultural and Historic Resources Survey ........................................................................................ 8
4.0 Opportunities and Constraints .......................................................................................................... 9
4.1 Natural Resources ....................................................................................................................... 10
4.2 Public Access ............................................................................................................................... 11
4.3 Local and Regional Connectivity ................................................................................................. 13
4.4 Cultural and Historic Resources .................................................................................................. 13
4.5 Aesthetics .................................................................................................................................... 13
4.6 Operations and Maintenance ..................................................................................................... 14
5.0 Public and Stakeholder Engagement .............................................................................................. 15
5.1 Partner and Agency Meetings ..................................................................................................... 16
5.2 Neighborhood Meetings ............................................................................................................. 16
5.3 Stakeholder Group Meetings ...................................................................................................... 16
5.4 Prior Board and Committee Meetings ........................................................................................ 17
6.0 Program Elements ........................................................................................................................... 17
6.1 Purisima Multimodal Recommendations ................................................................................... 18
7.0 Figures ............................................................................................................................................. 19
ATTACHMENT 1
Highway 35 Multi-use Trail Crossing and Parking Expansion
2
1.0 Project Background and Goals
1.1 Project Background
The District is conducting a feasibility study to identify a trail crossing location from the Purisima Creek
Redwoods (Purisima, Preserve) North Ridge parking area across Skyline Boulevard (Highway 35) to
connect existing segments of the Bay Area Ridge Trail within Purisima, west of Highway 35, to a new
segment of the Bay Area Ridge Trail planned on the east side of Highway 35 (Ridge Trail Extension). The
feasibility study will also analyze the potential expansion of the North Ridge parking area to serve
visitors to both the existing trailhead and to the proposed Ridge Trail Extension. The Highway 35 Multi-
use Trail Crossing and Parking Study (Project) is a partnership between the District, San Francisco Public
Utilities Commission (SFPUC), Bay Area Ridge Trail Council (Ridge Trail Council), and Peninsula Open
Space Trust (POST).
The intent of the Project is to enhance regional connectivity through a multi-use highway crossing
allowing access to trails on both sides of Highway 35 and to identify ways to reconfigure and increase
parking capacity of the North Ridge parking area.
The North Ridge parking area and trailhead is the northern-most entrance to Purisima, located on the
west side of Highway 35, approximately midway between Highway 92 to the north and Highway 84 to
the south (see Figure 1). To the east of Highway 35 are SFPUC’s watershed lands, where SFPUC is
planning to construct a new segment of the Bay Area Ridge Trail (Ridge Trail Extension). The Ridge Trail
Extension would run approximately six miles south from Highway 92 on SFPUC watershed lands and
terminate near the boundary of the Golden Gate National Recreation Area (GGNRA) Phleger Estate
property. As part of the Ridge Trail Extension project, SFPUC will construct a new parking area at the
north end of the new trail, just south of the intersection of Highways 92 and 35. The Purisima North
Ridge parking area will be the nearest parking location to the south end of the six-mile Ridge Trail
Extension and is likely to attract future trail users looking to access the new trail segment. Lack of a
nearby highway crossing location from the North Ridge parking area to the east side of Highway 35 may
potentially create safety concerns for users of the Ridge Trail Extension attempting to cross Highway 35
from the North Ridge parking area. In addition, an increase in visitors to the North Ridge parking area
may exacerbate parking congestion in a lot that is prone to exceeding capacity on weekends from
current visitors to Purisima.
To address these potential impacts from the Ridge Trail Extension, the District and its project partners
(Ridge Trail Council, POST, and SFPUC) identified the need to study the feasibility of a crossing location
on Highway 35 and an expansion of the existing North Ridge parking area. This Project will analyze
expanded parking and multimodal access options at the North Ridge parking area, identify a multi-use
trail crossing area on Highway 35, and an alignment of a spur trail to connect the Highway 35 crossing
location directly to the SFPUC’s planned Ridge Trail Extension. The North Ridge trailhead provides access
to an existing segment of the Bay Area Ridge Trail within Purisima and the multi-use trail crossing and
spur trail would connect it with the planned Ridge Trail Extension. Providing connections between
Purisima and the Ridge Trail Extension will contribute an important regional connection for multiple trail
users, including hikers, bicyclists, and equestrians.
The Project is occurring in parallel with two other planning studies at Purisima to improve public access
and complete regional trail connections. In 2022, District staff completed the Purisima Creek Multimodal
ATTACHMENT 1
Highway 35 Multi-use Trail Crossing and Parking Expansion
3
Access Study, which evaluated existing visitation at Purisima and developed a plan to address parking
and traffic congestion issues, increase greener modes of transportation, and better manage visitation at
the preserve. The Multimodal Access Study recommends a series of Transportation Demand
Management strategies (TDMs) to be implemented preserve-wide as well as some strategies specific to
the North Ridge parking area, in order of priority.
Planning for the Purisima-to-the-Sea Trail and Parking Area project is also underway, which is studying
the addition of five miles of new trail within Purisima to link the California Coastal Trail to the Bay Area
Ridge Trail. The project also includes planning of a new parking area to improve capacity for coastal
access to Purisima.
The District is supporting the implementation of a regional trail network through the efforts of these
projects and through ongoing partnerships to provide access to important trail connections. Purisima is
located at a significant junction for regional trails that will provide north-south corridors along the Bay
Area Ridge Trail, as well as east-west corridors through the Bay to Sea Trail with the Purisima-to-the-Sea
component. These regional trail networks not only provide opportunities to connect trail users to a
variety of open spaces, but also to understand the importance of regional conservation efforts and
contiguous open spaces for maintaining natural ecosystems.
1.2 Project Goa ls
The intent of the Project is to enhance regional connectivity through a multi-use highway crossing
allowing access to trails on both sides of Highway 35 and to identify ways to reconfigure and increase
parking capacity of the North Ridge parking area. Project goals and strategies have been identified to
guide the development of Project elements and evaluate Project success.
Goal 1: Support the implementation of the regional Bay Area Ridge Trail.
Strategies:
• Identify a multi-use trail crossing and trail spur location to connect the SFPUC’s new
segment of the Bay Area Ridge Trail to the Preserve and the existing Ridge Trail segment
within the Preserve.
• Maximize safety and minimize neighbor impacts when evaluating multi-use trail crossing
locations and infrastructure.
• Develop the multi-use trail crossing and spur trail to accommodate low-intensity
recreational use by hikers, bicyclists and equestrians, consistent with Bay Area Ridge
Trail corridor goals.
• Collaborate with partner agencies to complete the planning, design and implementation
of the multi-use trail crossing and spur trail.
Goal 2: Improve public access and visitor experience at Purisima’s North Ridge trailhead using
ecologically sensitive design, construction practices, and long-term maintenance and management.
Strategies:
• Add parking capacity through reconfiguration of existing parking spaces and expansion
of the North Ridge Parking Area.
ATTACHMENT 1
Highway 35 Multi-use Trail Crossing and Parking Expansion
4
• Improve the existing trailhead amenities, such as replacing the existing restroom with a
new ADA compliant vault restroom, replacing dated signboards with current standard
design, and adding bicycle parking.
• Incorporate Transportation Demand Management Strategies consistent with the Board-
approved Purisima Multimodal Access Study recommendations.
• Design recreational amenities to protect the scenic corridor.
• Maximize safety and minimize neighbor impacts when evaluating the multi-use trail
crossing, parking enhancements and vehicle circulation.
• Maintain routine patrols and maintenance and use adaptive management to address
unforeseen issues that arise from increased visitation to the North Ridge trailhead.
2.0 Existing Conditions
The Project site includes an area west of Highway 35 within Purisima Creek Redwoods Open Space
Preserve, comprised of the existing North Ridge parking area and adjacent open areas west of the
parking area. The site of the existing North Ridge parking area was purchased as an addition to the
Preserve in 1983 (R-83-05). Prior to this land purchase, the District had acquired a public easement over
the area that allowed for vehicular access and parking as part of the original Whittemore Gulch
purchase, the first acquisition to form what is now called Purisima Creek Redwoods Open Space
Preserve (R-82-30). The site was identified as having the potential to allow for a parking area adjacent to
Skyline Boulevard to provide Preserve access. In 1988, with grant funds from the State of California, the
North Ridge parking area was enlarged to the current capacity for passenger vehicles and horse trailers
and trailhead improvements were completed. According to a review of the Use and Management Plan
for the Preserve in 1989, public use of the Preserve increased sharply with the new public access
improvements and the available parking associated with the three Preserve trailheads (North Ridge,
Purisima Creek/Higgins Road, and Redwood) reached capacity on weekends (R-89-20).
The boundaries of the existing parking area and proposed parking expansion areas follow the Purisima
property boundary with Fisher Investments to the north and Highway 35 right of way to the east. The
employee residence defines the west boundary of the lower parking expansion area, and the southwest
boundaries of the project site are defined by dense forest and other vegetation that signal the start of
the preserve (see Figure 2). The Project site also includes the Caltrans Highway 35 right of way and
approximately four acres of SFPUC Watershed lands east of Highway 35 for the spur trail study area.
2.1 Natural Resources
North Ridge trailhead is located along the upper ridge of a watershed that flows west into the preserve
and into Purisima Creek. Due to the location of the trailhead on a ridge bordering two watersheds, many
aquatic features such as creeks, rivers, and wetlands do not occur near the trailhead, but further west
into the preserve where the topography slopes toward the coast.
2.2 Public Access
The North Ridge parking area and trailhead is the northern most entry point into Purisima Creek
Redwoods Open Space Preserve and is located along Highway 35, approximately 4.5 miles south of its
intersection with Highway 92 (Figure 3). From the North Ridge trailhead, visitors can access the 5,400-
acre Purisima preserve located on the western slopes of the Santa Cruz Mountains. Purisima offers
ATTACHMENT 1
Highway 35 Multi-use Trail Crossing and Parking Expansion
5
twenty-two miles of public trails with access for hikers, bicyclists, and equestrians as well as views of the
coast from various trails along the ridgelines that slope toward the coast from east to west.
The parking area is adjacent to the west side of Highway 35 with a vegetated barrier between the
parking area and the highway right-of-way. The gravel parking area can accommodate perpendicular
parking for 41 standard vehicle spaces and two ADA spaces. The parking area is unstriped and does not
delineate parking stalls, except for the two ADA spaces that are identified by ADA parking signs and a
blue curb. Wheel stops line the west and east sides of the parking area and help to define the
boundaries of the existing lot. While the North Ridge parking area does not include designated
equestrian parking spaces, approximately two equestrian trailers can be accommodated for parallel
parking along the split-rail fencing on the northwest side of the parking lot. The North Ridge trailhead
includes standard trailhead amenities such as an equestrian hitching post, map and sign boards, a boot
brush, and a single-stall vault restroom. The vault restroom, installed in 1999, is in deteriorating
condition and requires improvements and an accessible path to meet ADA accessibility standards.
The North Ridge parking area is accessible by a one-way entrance on the south end of the parking area
and a one-way exit at the north end of the parking area, which circulate traffic in a single direction
through the parking area from south to north. There are no entry or exit signs visible from Highway 35,
aside from a “do not enter” sign at the north driveway that indicates that it is an exit only. Within the
parking area, an exit sign is posted near the north driveway and a “not an exit” sign is posted near the
south driveway. A preserve sign for Purisima Creek Redwoods is located next to the North Ridge
entrance and is visible from Highway 35.
Of the four parking areas available for visitors to Purisima, the North Ridge parking area can
accommodate the largest number of on-site vehicle parking. All four parking areas frequently exceed
capacity on the weekends, during peak visitation, and visitors often use informal, roadside parking when
the lots are full. The Purisima Multimodal Access Study (2022) found that during the peak summer
months, the North Ridge parking area alone averaged between 225 to 525 vehicles and 500 to 1,225
pedestrians per day1, despite its maximum 41-car capacity.
2.3 Local and Regional Connectivity
Highway 35 provides key access points not only to Purisima, but also to the greater Skyline region,
including direct access to seven other preserves within the District and many other open spaces that
together act as a protected, regional greenbelt throughout the mid-peninsula. Among the many trails
and open spaces accessible from Highway 35 are a series of existing and planned regional trails that
provide connections throughout the Bay Area. Purisima will provide important trail connections for
many regional trails, including the Bay Area Ridge Trail and the planned Bay to Sea trail, lead by POST,
which will be an approximately 40-mile regional trail that is envisioned to connect communities from the
San Francisco Bay to the Pacific Ocean. A key component of the Bay to Sea trail will be the development
of the District’s Purisima-to-the-Sea trail, which will create a five-mile trail connection through Purisima
to the California Coastal Trail along Highway 1. Purisima also contains existing segments of the Bay Area
Ridge Trail, of which these segments contribute to over 400 miles (and counting) of existing multi-use
trail that follow the ridgelines encircling the San Francisco Bay. The alignment of the Ridge Trail
1 Purisima Creek Multimodal Access and Transportation Demand Management Study. Attachment 1, page 10.
ATTACHMENT 1
Highway 35 Multi-use Trail Crossing and Parking Expansion
6
Extension on SFPUC Watershed lands poses an opportunity to connect Purisima and its Bay Area Ridge
Trail segment to the new trail extension through the Project’s multi-use trail crossing on Highway 35.
2.4 Cultural Resources
The Project area is within a region that was historically occupied by tribes of the Ramaytush Ohlone
people. Ohlone territory spanned from areas north of the San Francisco Bay down the coast as far as
Carmel Valley, and inland to the coast range. San Mateo County is home to numerous historic Ohlone
sites and villages, whose boundaries were typically defined by topographic features such as rivers,
watersheds, and ridgelines. The nearest known cultural site of the Ramaytush Ohlone is a well-known
and historically significant village site located at what is now the private Filoli Estate, approximately two
miles northeast of the Project area on the eastern slope of the Santa Cruz Mountains.
2.5 Aesthetics
The North Ridge trailhead is surrounded by a rural, forested setting, primarily comprised of redwood
forest with some annual grassland and Monterey cypress woodland. The area is also sparsely populated
with single family residences and businesses along the Highway 35 corridor. The North Ridge trailhead is
accessible from Highway 35, a rural, two-lane highway providing north and south-bound travel along the
ridgeline of the Santa Cruz Mountains. The California Department of Transportation (Caltrans) has
designated Highway 35 as a scenic highway, which is meant to preserve the visual character of highways
and manage new development to preserve the scenic and natural features visible from the highways.
The stretch of Highway 35 in the vicinity of the North Ridge trailhead is lined with heavy vegetation that
contributes to its scenic beauty, but can also make roadway visibility challenging at high speeds.
2.6 Operations and Maintenance
Adjacent to the west boundary of the existing parking lot is an approximately 0.3-acre (13,000 square
foot) open, flat area (Upper area) that is vacant aside from the hitching post. This Upper area is used as
a helicopter landing zone by the California Department of Forestry and Fire Protection (CalFire) for
emergency response. Further west of the Upper area, moving into the preserve, the land slopes down to
another open, flat area (approximately 1.2 acres or 52,000 square feet) where a employee residence
and separated garage are located (Lower area). This Lower area previously hosted an experimental fog
collector, a device installed in 2016 to conduct initial studies of moisture collection from fog that occurs
over the Santa Cruz mountains. The fog collector was removed in December of 2022 after the data
collection ended in 2018 and the device was left idle for many years. The slope separating the two open
areas west of the North Ridge parking area is also covered with dense vegetation, which provides visual
and physical separation between the trailhead and the employee residence. The employee residence is
accessed by a gated, gravel driveway along the north boundary of the preserve that connects the
property to the North Ridge parking area.
The adjacent property to the north of the North Ridge parking area is owned and occupied by a private
company, Fisher Investments. Their property is highly developed with offices and other support
buildings as well as a parking area accessible from Highway 35. To the east of the North Ridge parking
area and of Highway 35 are SFPUC watershed lands, which are undeveloped and primarily consist of
dense redwood forest. Adjacent properties to the south of the North Ridge trailhead are private, single-
family homes. The closest private driveway is 400 feet south of the entry driveway to the North Ridge
trailhead.
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The posted speed limit is 50 mph at the North Ridge trailhead, however, many nearby residents and
frequent preserve visitors have provided public comments that vehicles often go at much higher speeds.
The District is aware of safety concerns regarding the speed of vehicles travelling along Highway 35 and
the feasibility study aims to identify potential safety concerns related to the Project.
3.0 Technical Studies
District staff contracted with professional consulting firms to complete various technical studies to
analyze the biological, cultural, traffic, and topographic characteristics of the Project area (including
both the Upper and Lower parking expansion areas). The methodology, key findings, and
recommendations from these studies are summarized below.
3.1 Biological Resources Survey and Phytophthora Risk Assessment
In June, 2022, AECOM conducted a thorough Biological Resources Survey to identify any existing or
potential biological resources within the proposed Project area. In particular, the survey was conducted
to identify all San Francisco dusky-footed woodrat (SFDFW) middens present within the project area,
any substantial or permanent nesting bird resources (e.g. suitable nesting trees) in the area, any aquatic
features including jurisdictional wetlands or other waters, the presence of any bat maternity roosts
within the onsite residence, and the suitability of the Project site for special-status wildlife habitat. A
daytime biological survey analyzed an area consisting of the Project site, traffic survey area, spur trail
study area, and included three buffer areas of up to 1,000 feet for nesting birds. A bat emergence survey
was also conducted during the evening to monitor any bat activity near the employee residence and
garage.
The surveys found one active SFDFW midden at a distance approximately 250 feet from the project
area, which is unlikely to be affected by the Project. No active raptor, accipiter, or passerine bird nests
or nesting platforms were found in the vicinity of the Project site; however, a Monterey cypress tree
being used as an acorn woodpecker granary was found in the Spur Trail study area. The survey found no
evidence of aquatic resources or jurisdictional wetlands and special status species within the Project
area, nor was there evidence of the presence of bat maternity roosts within the onsite employee
residence or garage.
Due to the project site’s proximity to Huddart County Park which is a designated critical habitat for the
endangered marbled murrelet, District staff conducted a site assessment for marbled murrelet and
consulted with California Department of Fish and Wildlife (CDFW) about the potential need for special
species protections. However, based on results of the site assessment and discussions with CDFW, both
the District and CDFW staff confirmed that no suitable murrelet habitat within the project area and
within the project vicinity, therefore the project will have zero species impacts. Noise and visual
disturbance avoidance measures will likely not be necessary.
In February 2023, AECOM prepared a Phytophthora Risk Assessment in order to identify the modality of
soil pathogen infection and to provide specific mitigation and best management practices to minimize
the introduction or spread of Phytophthora species at the site. Analysis found that the project area has
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relatively low levels of contamination risk; however, areas east of Hwy 35 are highly receptive to
contamination and are considered sensitive sites.
3.2 Traffic Survey
TJKM Transportation Consultants (TJKM) evaluated the sight distance conditions for the two existing
parking area driveways and the feasibility/design of a new on-grade trail crossing on Highway 35. TJKM
performed a Sight Distance analysis using standards in “Highway Design Manual”, 2020 7th Edition by the
California Department of Transportation, a policy on Geometric Design of Highways and Street, 2018 7th
Edition, from the American Association of State Highway and Transportation Officials (AASHTO) and the
California Manual on Uniform Traffic Control Devices (CA-MUTCD). In April 2022, TJKM measured vehicle
speeds in the vicinity of the North Ridge parking area to determine the project design speed. The project
design speed is the 85th percentile of actual speeds measured on the roadway; it is used to determine if
adequate sight distance is available for vehicles exiting the existing driveways, and if northbound and
southbound vehicles on Highway 35 have adequate stopping sight distance for the new on-grade trail
crossing. Although the posted speed limit is 50 mph, the design speed measured on the road was 51.7
mph northbound and 51.0 mph southbound. TJKM rounded these findings up to 55 mph as the final
design speed used in the feasibility analysis. TJKM also reviewed five years of traffic collision data within
the vicinity of the project site to inform the final recommendations. There were no reported incidents
directly in front of the parking area to prompt additional recommendations. The traffic collision data can
be found as an appendix to the traffic report. Based on the available information, TJKM concluded that
there is a feasible on-grade trail crossing location immediately adjacent to the existing exit driveway.
TJKM recommended improvements within the right-of-way to preserve site distances and enhance
visibility of the trail crossing (see Figure 4). Furthermore, TJKM concluded that the existing driveway
configuration is the most favorable for ingress and egress. TJKM has sought concurrence with the
California Department of Transportation (Caltrans) on their findings and recommendations. Caltrans
reviewed the findings and requested additional information in the final report, which was provided by
TJKM. Caltrans does not have any further comments at this time. Additional coordination with Caltrans
will be required for future encroachment permits, which would occur after a Board-approved alternative
is selected and analyzed as part of the CEQA environmental review process. Refer to roadway trail
crossing graphics for more details (Figure 4).
3.3 Cultural and Historic Resources Survey
Cogstone Resource Management, Inc. conducted cultural and historic resource surveys in the fall and
winter of 2022 to determine if any cultural or historic resources were present within the Project area
that may be affected by implementation of the Project. Cogstone conducted background research
involving a search for archaeological and historical records at the Northwest Information Center (NWIC)
as well as a request for a Sacred Lands File (SLF) search from the Native American Heritage Commission
(NAHC). Cogstone also conducted a pedestrian survey of the Project area to determine whether any
archaeological resources were present. No archaeological resources were observed during the survey
and the background research did not find any previously recorded cultural or historical resources
located within the Project area. The boundary of one historic resource, the Filoli Estate, was located
within the half mile search radius, but is outside of the Project area and is unlikely to be affected by the
proposed Project. The SLF search identified one tribal band and the NAHC recommended they be
contacted for information on any tribal cultural resources in the vicinity of the Project. The District will
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will contact the tribe directly once preliminary concept plans are available and again when a design
alternative is selected and the Project proceeds to the environmental review phase, as required by the
California Environmental Quality Act (CEQA) and in accordance with Assembly Bill (AB) 52 consultations.
No archaeological monitoring is anticipated due to the geological age of the soils as well as the absence
of any known cultural resources within the Project area.
Cogstone also conducted an Historic Resources Evaluation for the nearby onsite employee residence
that was built over 50 years ago (circa 1948) given its proximity to the parking area. The residence
includes Ranch style architectural elements such as a low pitch roof with a wide eave overhang. The
entire exterior of the single-family residence was photographed and recorded on the Department of
Parks and Recreation 523 (DPR 523) forms. Due to a lack of significance and notable architectural
alteration, the residence was not found eligible for listing at the local, state, or national level. No further
evaluation is recommended. No changes are proposed for this residence, which would remain in place
as part of the Project and continued to be used as an employee residence to maintain onsite presence
and vigilance of the property.
4.0 Opportunities and Constraints
This section describes the opportunities and constraints for the Project site, which are related to
important attributes of the site and require consideration for Project program development.
Opportunities and constraints are categorized by topic area (such as Natural Resources or Public Access)
and some attributes may be listed as both an opportunity and a constraint based on their relationship to
the Project goals. In addition, several policies and best management practices (BMPs) that may be
relevant to the Project are listed below.
Potential applicable policies, guidelines, or regulations:
• Caltrans Highway Design Manual
• District Best Management Practices
• District Good Neighbor Policy
• District Resource Management Policies
• Purisima Multimodal Access Study
• San Mateo County Active Transportation Plan
• San Mateo County General Plan. 4.22 Scenic Corridors. Protect and enhance the visual quality
of scenic corridors by managing the location and appearance of structural development.
• San Mateo County General Plan. 4.24 Rural Development Design Concept. Regulate the
location and siting of structures in rural areas to encourage positive visual quality in relation to
the scenic character of the natural landscape.
• San Mateo County Heritage/Significant Tree Ordinance
• San Mateo County Trails Plan
• San Mateo Water Pollution Prevention Program
*Relevant policies, guidelines or regulations are shown with corresponding opportunities or constraints
and labeled with and asterisk.
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4.1 Natural Resources
Attribute Opportunities
& Constraints
Discussion
Biological
Resources O
The biological survey conducted for the Project site did not uncover
any special-status wildlife species, nesting birds or raptors, aquatic
resources, roosting bats, or other sensitive biological resources
within the Project area. A Dusky-Footed Woodrat midden is present
about 250 feet from the Project area, which is well beyond the
minimum avoidance buffer of 3-10 feet established by the District. It
is unlikely that midden would be affected by the Project at this
distance. It is unlikely that marbled murrelet protections will be
required during construction. Construction activities should avoid
direct impacts to trees within the spur trail study area during bird
nesting season (between March 15 and August 30).
* District wildlife BMPs: nesting bird surveys, SF dusky-footed
woodrat midden avoidance buffer, marbled murrelet AMMs
Biological
Resources C
There is dense vegetation along the east side of Highway 35 (on
SFPUC Watershed lands), which may affect the spur trail alignment as
well as the line of sight for the multi-use crossing. Some vegetation
may need to be removed and/or trimmed back to improve line of
sight for the crossing as well as develop the spur trail connection to
the Ridge Trail Extension.
*San Mateo County Heritage/Significant Tree Ordinance
Hydrology C
Drainage from the existing parking area and trailhead flows west, into
the preserve, while drainage on the east side of Highway 35 flows
east, contributing to the SFPUC watershed. An existing drainage
culvert is located just south of the North Ridge trailhead and parking
entrance. Drainage from the site may be affected by construction
activities related to parking expansion as well as an increase in
impervious surfaces. Potential runoff from an expanded parking area
will need to be evaluated to ensure there will be no impacts to water
quality and buffers implemented where/if necessary.
*San Mateo Water Pollution Prevention Program
Pathogens O/C
The Phytophthora risk assessment determined that the project site
has relatively low levels of pathogen contamination west of Highway
35. However, movement of Phytophthora pathogens may also
migrate from the Project area and construction activities (e.g.
reseeding) to SFPUC property east of Highway 35 and some sensitive
areas will require particular protection from infection.
*Phytophthora Risk Assessment BMPs and AMMs
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4.2 Public Access
Attribute Opportunities
& Constraints
Discussion
Parking Area O
The existing North Ridge parking area and trailhead are frequently
visited and familiar to visitors of Purisima, as it is currently the largest
parking area available for the preserve. Expansion of the parking area
coupled with multimodal access strategies are expected to
significantly alleviate parking demands and potentially meet
anticipated parking needs at this trailhead. The Project will maintain
the existing vegetated buffer and berm between the parking lot and
Highway 35 to minimize visibility of the parking area from the
highway. The separate driveway for entrance and exit will also be
preserved to better accommodate larger vehicles such as shuttle
buses, emergency vehicles, and equestrian trailers. This will save
space by not requiring a turn-around area. Minor improvements to
signage may be implemented to better identify the entry and exit to
vehicles travelling along Highway 35.
Parking
Capacity C
Although expansion of the parking area would add much needed
parking at the North Ridge trailhead, the available expansion areas
are limited in size. Future expansion will likely not fulfill the maximum
parking demand at peak visitation hours and TDM strategies should
be considered to manage parking.
*Good Neighbor Policy
*Purisima Mulitmodal Access Study
Trail Crossing
Location O
Based on the traffic study conducted at the North Ridge trailhead, an
adequate line of sight was identified that would allow for a safer
crossing location just south of the exit driveway. The adequate line of
sight indicates that vehicles traveling north and south bound along
Highway 35 will have enough warning, visibility, and space to yield to
trail users crossing at the recommended location. The traffic study
also recommended the use of crossing signage that is consistent with
many other highway crossing locations along Highway 35 and would
be familiar to trail users and vehicles approaching the crossing.
*Caltrans Highway Design Manual Policy 405.1
*SMC Active Transportation
Trail Crossing
Safety C
During the stakeholder engagement process neighbors expressed
concern over current excessive vehicle speeds along Highway 35 that
are perceived to be much higher than the posted speed limit. While
the traffic study analysis used current traffic data and accounted for
greater vehicle speeds along Highway 35 in its recommendation of
the highway crossing location, further consultation with Caltrans is
required to determine the final crossing design and signage that
would be appropriate for the recommended crossing location.
Parking O On the west side of Highway 35, the existing parking area and
adjacent upper expansion area are generally flat with a very gradual
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slope to the west, into the preserve. Adjacent to this area, a steep,
vegetated slope separates the upper parking expansion area from the
lower expansion area and employee residence. The terrain levels out
again at the lower expansion area and residence with just a gradual
slope to the southwest. The existing topography will influence the
parking capacity for both the upper and lower parking expansion
areas and neither expansion area will require significant grading.
During the stakeholder engagement process, interest was expressed
in adding designated equestrian parking at the North Ridge trailhead.
Although equestrian parking is currently permitted at North Ridge,
equestrians must share the space with standard vehicle parking and
there is rarely enough available space to park equestrian trailers
during peak visitation hours. Reconfiguring and expanding the
parking area will provide an opportunity to address public interest in
adding designated equestrian parking to the North Ridge parking
area.
Parking C
The steep, vegetated slope creates a barrier between the upper
parking expansion area and the lower expansion area and employee
residence. This slope limits the area that can be used for on-site
parking expansion as well as internal circulation if the lower
expansion area is utilized.
The addition of designated equestrian parking would mean reducing
the number of additional standard vehicle parking that could be
accommodated onsite. Although feedback from the stakeholder
engagement process showed interest in designated equestrian
parking, it’s unclear how many spaces are required to meet the
demand for equestrian parking and whether this should be prioritized
over the addition of standard vehicle parking, which is in high
demand at this location.
Proximity to
Adjacent
Properties
O
There are limited adjacent properties and driveways in the vicinity of
the Project site that could be impacted by an increase in visitation to
the North Ridge parking area. The Fisher Investments property,
adjacent to the north boundary of the North Ridge parking area, has
an opposite visitation schedule from visitors to North Ridge where
most Fisher Investments employees are working on site during the
weekdays, while Purisima has peak visitation on weekends.
*Good Neighbor Policy
Proximity to
Adjacent
Properties
C
The lower parking expansion area is adjacent to the existing
employee residence. Use of the lower parking expansion area for
additional visitor parking may require a buffer from the residence for
privacy and to maintain District operational access to and from the
residence. Although the Fisher Investments property is busiest on
weekdays when visitation to Purisima is lower, the Ridge Trail
Extension may increase weekday visitation that could contribute to
more traffic congestion in the vicinity of the private property.
*Good Neighbor Policy
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4.3 Local and Regional Connectivity
Attribute Opportunities
& Constraints
Discussion
Trail Crossing
Location O
Existing segments of the Bay Area Ridge Trail within Purisima can be
accessed from the North Ridge trailhead, which makes a multi-use
trail crossing at Highway 35 from the planned Ridge Trail Extension to
the North Ridge trailhead a natural and direct connection point.
*San Mateo County Trails Plan
4.4 Cultural and Historic Resources
Attribute Opportunities
& Constraints
Discussion
Cultural
Resources O
The cultural resources survey conducted for the Project site did not
identify any previously recorded cultural resources within the Project
area and no archaeological resources were encountered during the
pedestrian survey. A Sacred Lands File search identified one Native
American Tribe that will be consulted when preliminary concept
plans are available and during the planning and CEQA environmental
review process to obtain more information about any potential
cultural resources within the Project site. Due to the results of the
pedestrian survey, background research, and soil analysis,
archaeological monitoring is not recommended during development
of the Project.
*District Cultural Resources Policies
Historic
Resources O
The historic resources evaluation thoroughly documented and
analyzed the site’s existing employee residence to determine if it is
historically significant. Despite the age of residence, originally
constructed sometime between 1941 and 1948, this building is not
recommended as eligible for listing at the local, state, or national
level due to lack of significance and the notable architectural
alterations made to the residence since it was originally built.
*District Cultural Resources Policies
4.5 Aesthetics
Attribute Opportunities
& Constraints
Discussion
Caltrans
Scenic
Highway
Designation
O
Caltrans designates portions of Highway 35 as a state scenic highway,
including the portion of Highway 35 adjacent to the Project site.
Caltrans and San Mateo County have developed policies that regulate
development along scenic corridors and provide guidance for other
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visual resources. The existing North Ridge parking area is adjacent to
Highway 35 and partially visible from the highway. A barrier of
redwood trees along the east boundary of the parking lot separates
the existing parking area from the highway right-of-way and provides
a natural visual barrier, which will remain regardless of the final
parking area program. In addition, the proposed lower parking
expansion area is set back from the roadway and is lower in elevation
as compared to the existing parking area, which will help to reduce
visibility of the expanded parking area from the highway. The Project
proposes to maintain the existing entry and exit driveways to the
parking area along Highway 35 to minimize the Project’s visibility
from the scenic highway.
* San Mateo County General Plan. 4.22 Scenic Corridors
California Streets and Highways Code Division 1, Chapter 2, Article 2.5
Caltrans
Scenic
Highway
Designation
C
Although the Project will direct new development to areas away from
Highway 35, there is potential for changes to be visible from the
highway, including the upper parking expansion area and the
replacement vault restroom, which would be relocated to a more
central location to address ADA barriers. In addition, the Project will
require a crossing sign and two crossing warning signs to be installed
along Highway 35 to identify the multi-use trail crossing location.
While these traffic features will be minimal, they are meant to be
highly visible to vehicles travelling on Highway 35 to promote safer
crossing. Vegetation clearing along Highway 35 right-of-way will also
occur, both to support the traffic study recommendations for
improving line of sight to the multi-use trail crossing as part of the
Project and separately through Fire Safe San Mateo County to
support fuel reduction efforts for wildfire prevention.
*San Mateo County General Plan. 4.24 Rural Development Design
Concept.
California Streets and Highways Code Division 1, Chapter 2, Article 2.5
4.6 Operations and Maintenance
Attribute Opportunities
& Constraints
Discussion
Utilities and
Services O
Above-ground power lines run along Highway 35 adjacent to the
Project site and underground electric lines currently serve the
employee residence, garage, and the existing parking area entry and
exit gates. A water main line also runs beneath Highway 35, including
a water distribution line that serves the employee residence. Cellular
service is also available at the existing North Ridge parking area.
Utilities and
Services C
Sewer service is not available at the employee residence nor at the
North Ridge trailhead. The trailhead provides a vault restroom for
public use. Relocating the vault restroom would be a challenge due to
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the existing topography and vegetation near the trailhead that limits
alternative locations. The vault restroom will be replaced with an
ADA-accessible model. Vault restrooms, as opposed to plumbed
restrooms, are only permissible on a case-by-case basis through an
exemption with the County of San Mateo. Preliminary inspection by
District staff indicates that the site meets the criteria to allow the
exemption.
CalFire
Landing Zone C
District staff have reached out to the agencies and organizations that
may utilize the landing zone at the upper expansion area, including
CalFire, San Mateo County Fire, and the Kings Mountain Volunteer
Fire Department. These organizations are aware of the Project and
have not requested further coordination at this time. In addition,
there are other landing zones located in the vicinity of the Project
area that are currently used by these organizations. These nearby
alternative landing zone locations include private properties on
Cyprus Ridge Road, less than a mile north of the Project site, and
Tunitas Creek Road, approximately two miles south of the Project
site. The nearest alternative landing zone on District lands is located
at El Corte de Madera Creek Preserve, approximately five miles south
of the Project site. Should a Project alternative be selected for CEQA
review that would change the use of the landing zone, District staff
will engage in additional coordination with these agencies at that
time to confirm the site can be formally retired.
5.0 Public and Stakeholder Engagement
From 2021 to 2022, the District engaged with stakeholder groups and partners as part of the Project
focused meetings and at meetings that included the Purisima-to-the-Sea project and the Purisima
Multimodal Access Study. These engagement activities were used to gather initial feedback on existing
challenges at the North Ridge parking area and any desired amenities that should be considered for this
parking area. Feedback received includes the following 2:
Theme/Topic General Feedback/Comments
Traffic and Safety • Concerns related to providing a safe pedestrian roadway
crossing due to current vehicle speeds on Highway 35
• Neighbors would like to see roadway striping and advanced
warning beacon for trail crossing
• Concerns related to roadside parking that create potentially
unsafe roadway conditions for pedestrians and vehicles
• Suggestion to modify parking area entrance to allow vehicles
to turn into the parking area quickly
2 This feedback has been received in addition to previous feedback that was presented to the PNR Committee and
the Board as part of the Purisima Multimodal Access engagement on August 2nd, 2022 (see attachment 5) .
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• Suggestion to review historic traffic accident data in the
vicinity of North Ridge to better understand safety issues
• Concerns related to foggy conditions on Highway 35 that could
limit visibility
Parking and Visitor Capacity • Allowing E-bikes within the Preserve may reduce parking
demand
• Request for better equestrian parking and access at this
trailhead
• Better/clearer roadway parking signage can discourage
parking along the roadway that impacts neighboring
properties
Amenities • Support for the proposed trailhead amenities
• Suggestion to include emergency response information on
trailhead signage
General • General support for the Project if concerns are addressed
• New regional trail connection may result in additional traffic
and trash
• Concerns regarding relocating the CalFire helicopter landing
zone and how this would impact fire response
5.1 Partner and Agency Meetings
On October 19th, 2022, District staff made a presentation at a monthly meeting of the Peninsula Trails
Team, a working group made up of regional trails partners and land managers, including representatives
from POST, SFPUC, Ridge Trail Council, California Coastal Conservancy, County of San Mateo, National
Parks Service, Golden Gate National Recreation Area, and the District. Following the presentation of the
Project scope, updated schedule, and the results of the completed technical studies, the group
discussed regional implications for the new trail connection as well as the potential timing for future
planning and CEQA environmental review.
5.2 Neighborhood Meetings
District staff met with representatives from local organizations including members of the Kings
Mountain Association, a neighborhood association, and the facilities manager of Fisher Investments, the
neighboring property to the north of the Project site. District staff presented the Project to the Kings
Mountain Association in March and November of 2022 and engaged in group discussions. District staff
also provided a presentation to the facilities manager of Fisher Investments on November 9th, 2022 to
notify them of the Project, answer questions, and receive initial feedback.
5.3 Stakeholder Group Meetings
District staff invited individuals who were familiar with Purisima and other District preserves to
participate in focused virtual stakeholder meetings held on November 15th and 17th, 2022. The
individuals invited to the stakeholder meetings were identified from their previous participation in
public engagement activities with the District and represented a range of user groups, including hikers,
cyclists, equestrians, ADA-accessibility interests, and District docents and volunteers. The virtual
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stakeholder meetings were organized with a brief presentation by District staff, followed by polling
questions and open discussion.
5.4 Prior Board and Committee Meetings
To date, the Highway 35 Multi-use Crossing and Parking Expansion Feasibility Study has been brought
before the District’s Legislative, Funding and Public Affairs Committee (LFPAC) at the following meetings:
• September 29, 2020: The LFPAC reviewed the partnership agreement with SFPUC and provided
comments. The LFPAC voted unanimously to forward a recommendation to the full Board of
Directors to adopt the resolution authorizing the General Manager to execute the grant
agreement. (R-20-101, Meeting Minutes)
The Highway 35 Multi-use Crossing and Parking Expansion Feasibility Study has also been brought
before the full District Board at the following meetings:
• October 28, 2020: The Board adopted a resolution authorizing the General Manager to accept
grant funding from SFPUC for the proposed Project. (R-20-32, Meeting Minutes)
6.0 Program Elements
The Project proposes to expand parking for passenger vehicles and horse trailers. The trailhead would
have amenities typical to District preserves, including a vault restroom, trailhead sign boards, boot
brush, bike racks, and an equestrian mounting block. The parking lot, trailhead, and restroom would
meet ADA accessibility requirements.
The Committee is asked to provide feedback on the share of passenger vehicle, horse trailer, and shuttle
spaces that should be accommodated as part of the proposed parking expansion design. The share of
spaces is based on the expansion potential that exists at the Upper Area, comprised of the existing
parking area and the adjacent vacant area to the west, and the Lower Area, comprised of the vacant
area adjacent to the employee residence. District staff completed a spatial analysis for the Upper and
Lower Areas, which is detailed below (refer also to Figure 5).
The Upper Area could accommodate any of the following scenarios:
Capacity Scenarios Number of Passenger
Vehicle Parking3
Number of Horse
Trailer Parking4
Number of Shuttle Bus
Parking 5
Scenario 1 65 0 0
Scenario 2 45 4 0
Scenario 3 45 0 4
3 AASHTO Geometric Design of Highways and Streets Exhibit 2-3 Passenger Car (P)
4 AASHTO Geometric Design of Highways and Streets Exhibit 2-21 Passenger Car and Trailer (P/T)
5 AASHTO Geometric Design of Highways and Streets Exhibit 2-8 Conventional School Bus (S-BUS-11 [S-BUS-36])
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The Lower Area could accommodate any of the following scenarios:
Capacity Scenarios Number of Passenger
Vehicle Parking
Number of Horse
Trailer Parking
Number of Shuttle Bus
Parking
Scenario 1 15 0 0
Scenario 2 0 2 0
Scenario 3 0 0 2
Staff seeks the Board’s direction on the scenarios to develop final parking program alternatives, which
may be a combination of the scenarios listed above and may include other parking elements. For
example, one possible combination of these scenarios that maximizes all three uses is to provide 45
passenger vehicles, 2 horse trailer spaces and 2 shuttle spaces in the Upper Area; and 15 passenger
vehicle spaces in the Lower Area. The above scenarios are only to demonstrate maximum available
space at each expansion area and are not the only parking alternatives that should be considered for the
Project.
6.1 Purisima Multimodal Recommendations
The Purisima Multimodal Access Study, approved by the Board on November 9, 2022, recommends a
series of transportation demand management strategies (TDMs) for the preserve’s parking areas,
including the North Ridge parking area. The TDMs considered for the North Ridge parking area are
categorized by priority level based on a variety of factors such as ease of implementation, overall
effectiveness for improving public access, and interest from the public. The expectation is that many of
these strategies will be suitable for the site and be incorporated into the design and long-term
management of the parking area TDMs that are being considered for the North Ridge trailhead include
the following:
Highest priority TDMs
• Peak period parking reservations/priority parking
• Bicycle parking and facilities (including bicycle repair stations)
• Temporarily redesignate spaces on specific days/times to best meet demands
o May include designating special parking areas temporarily for carpool, equestrian,
shuttle pick-up/drop-off, or other uses
• Real-time parking lot occupancy sensors and signage
• Electric Vehicle (EV) charging infrastructure
Lower priority TDMs
• Vehicle way-finding signage
• Clearly identify permitted on-street / shoulder parking
• Accommodate future shuttle / transit systems
ATTACHMENT 1
Highway 35 Multi-use Trail Crossing and Parking Expansion
19
7.0 Figures
Figure 1: Project location
Figure 2: Project area
Figure 3: Existing Conditions
Figure 4: On-grade Crossing Recommendations
Figure 5: Spatial Analysis
ATTACHMENT 1
Midpeninsula Regional
Open Space District
(Midpen)
3/7/2023
Hwy 35 Multi-Use Trail Crossing and Parking Expansion Feasibility Study
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Midpen preserves
Private property
While the District strives to use the best available digital data, these data do not represent a legal survey and are merely a graphic illustration of geographic features.
Other protected lands
PU R ISI M A-TO-THE-SEA TR A IL
BAY TO SEA TRAIL
Future
Verde Road
Parking Area
^_Project
Location
BAYTO SEA TRA IL
PROPOSED
RIDGE TRAIL
EXTENSION
Grabtown Gulch
Roadside
Parking
Purisima
Creek Road
Parking Area
North Ridge
Parking Area
Redwood
Roadside
Parking
E L C O R T E D E
M A D E R A C R E E K
M I R A M O N T E S R I D G E
P U L G A S
R I D G E
T E A G U E
H I L L
T H O R N E W O O D
T U N I T A S
C R E E K
P U R I S I M A
C R E E K
R E D W O O D S
H U D D A R T
P A R K
W U N D E R L I C H
P A R K
F I L O L I
C E N T E R
J O H N S T O N
R A N C H
P H L E G E R
E S T A T E
S O U T H
C O W E L L
F A R M S
BA
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Coastal Zone
Proposed Bay to Sea Trail
Proposed Purisima-to-the-Sea Trail
California Coastal Trail
Proposed extension of Bay Area Ridge Trail
Existing Bay Area Ridge Trail!!!!!!!!!!!
COASTALZON
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0 1.50.75
Miles
Existing parking lot
¾Proposed parking area
Existing roadside parking
ATTACHMENT 1a