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Home My Public Portal AboutSeptember 14, 2017 Green Infrastructure Presentation Final�� 1,' � , ' � i'� �� '� ' '} �' ` + , `.11 � �f::ii�r-h��1�lr it 4�{�;.,.•.,: �v• �� ^r,;�%p { 1 °;f,+ t• t11/� f �� '�:. '}'. 1 Rr i � ;�,, �—L � 9. S' d �, • �`i.T ,�7�� . � �J ' #�.: �� ? !:•_l 7_ 1�14.` iS• c�� i 1�, t.. Wit!f� { '�ly.rrr. it �A a� �` r .� .1� �•' 1 -•. {`\ rJ i1.•� l/ � ,•! � ■ • ��' � � if �� __ �� .�.y. � . :\ � ._ . , � • _i,'; �. , � �'�-war E � __� � %� �*� 'tS � s•r � r( f`i✓i '_�' 'r �"� E � .,��,. � ,��, �,� � ! .�� r ♦ F � %r �t J � f, / 1 - �� _ [,iRy.� r�is•, � - �' 1•, �{•- wr! r� 1 �;.i - \ �I' � � � r r . �hr `tj l �'% 7/ •' -//',� a � E'/�I r � I _� l 1. � .. `•• �°. ��''L�•C ._,� � J � �I� �'�. _ _� , T �142p 17 F:� ► Tow+n-•�aa=1 I C a u n,ciNrha rn b e r s=-y } Is �Wate rtow MIA n..fY. �� • a •� �S' l �e� f'—� `1 i� ~1`� i �,` or ft - Horsley Witten Group : 5i% Sustainable Environmental Solutions Rich Claytor, P.E. Janet Bernardo, P.E. horsleywitten.com _ _ 857-263-8193 Agenda • Recap 2016 Meeting • Review How Priority Sites Selected • Review 30% Designs • Next Steps for Pilot Projects • Green Infrastructure in Action • Stormwater Management in Development • Get Involved! m wn 7 Departmentof ic . orksut ... this town.'" Horsley Witten Group I Lo� Sustainable Environmental Solutions %W Introduction & Grant Goals Ti I Cor.+nwNwrnc+o i cm Mnssnr;i+usL - + • Grant Project Funded through EXECUTIVE OFFICE OF ENERGY & ENVIRONMENTAL AFFAIRS the 604(b) Pro ram for Water g DEPARTMENT of ENVIRONMENTAL PROTECTION Quality Assessment a n d ONE WINTER STREET, BDSTO". MA Planning --4� k Increase Awareness Stormwater Issues • Educate Stakeholders • Identify Opportunities for Green Infrastructure IF Watertown Departmentof Horsley Witten Group PublicSustainableRthistown.- Environmental SolutionsLO We're all about � Project Partners • MassDEP • Department of Public Works (DPW) • Department of Community Development and Planning (DCDP) • Stormwater Advisory Committee (SAC) • Horsley Witten Group, Inc. Watertown Dew,,,entof EqMFA . orks this town'" Horsley Witten Group Sustainable Environmental Solutions What is Green Infrastructure? Non -Structural Practices Infiltration Practices Bioretention and Green Wetland Practices Street Practices 0 Water Quality Swales Tree Trenches 0 Rainwater Harvesting Permeable/Porous/ 0 Green and Blue Roofs Pervious Pavements 3-ioretention and Green Stree 66" Z... 9 - liftbr ' .••• ' _04 0 _ � ___ _ , + _ ■ � �. �{ ''yam Alk *may } �."y�'' ,fit{', F O �; Tree Trenches LEGEN 1. Sidew 2. Tree p 3. Catch 4. Roadv 5. Plantii 6. Inflow 7. Stone 8. Overfl 9. Existir Selection Process Summary • HW met with DPW, DCDP, and SAC • Utilized MassGIS & Town Mapping • Evaluated Pollutants by Land Use & Outfalls • Analyzed Soils, Catchment areas • Identified 23 Potential Locations • Focused on Town -owned Property and ROWs • June 2016 - Narrowed to 13 Candidate Site • Sept. 2016 Meeting - Chose 5 Priority Sites • Selected 2 Pilot Projects for 30% Design with SAC IF Watertown Departmentof Horsley Witten Group IC-14 PublicSustainableVRthistown.- Environmental SolutionsLl We re all about 'WAM- 1A 04 1B H 2 04 6 7 1� 8 I�1 9A m 9B 0' 9L 9A p a.� 22 10 10 17 MI 20 21 22 rr 23 Ranked 13 Candidate Sites • Public Visibility • Impervious Area Treated • Cost • Priority Watershed • Maintenance • Future Public Improvements Watertown Departmentof P4allaMouFtil-JrRthisWetown.- Horsley Witten Group Sustainable Environmental Solutions 13 Candidate Sites r.... : nrll G lS S� N o` # a $ n Raysnn V F'+F41awAwr R A. 0 ��w..r, ,; f + - h+ Aye �4 I?is,, y ¢cam n 13 P � � q �'rhIm � � • � V � r 4 r 6 c N a YhlnpY.11lO A"I t 4 " 7 p _UI'�r µtAvtiurn , S� ; G•I 8 rl �yrrtk�b #Ira b Aianl - n 3k.. # !r 1. 0 *J rreu a Fdjrjrj}0 y x >� �f W t 13 �y orl O r(r ri C] { 1'Ili liRr y'„{ _ s d' = d w Id 1 Frlk er v+pn,A, s I _c rdr;'� I,In 1`3 R 51 N1�b *r r 4� L rrlph R + 1 in 'a h - _- tr�`� � �cj r t +Irh�+.r Rr ''C a lu�.,r. RI ...4: 8S# a c aerruwn u �a rrfa1Pa°" ', C % € 3 AV r_ PULnam 51 Sr i 40. 1 + i r W BL neelL F 11y '{ LaurdEl ap tiarpha - ID S+ Ie r rn � S � f'' � yk- � � . �SI wYr�lkrnr• � +x� V, 1 Frfiy� at rAWI Saar Arrrch Rd i 111r1 B # 4 V'4QjIPY dlre S[ *wn,lunwro slax +ir�MaW e u. + i u w � .,,.mow r. I• ~ 4r St k #u ry Aye rWW6k3M 1 �M � - t�� pry I+r, I'7f�4y t$ , r Hsl — MWe'reall wn Deparimentof Horsley Witten Group icorksSustainable Environmental Solutions ut ... this town.'" 5 Priority Sites Discussed at Sept. 2016 SAC meeting Overall Highest Ranking Location in Town Conflicts Schools Involvement Scheduled Public Improvements 5 Priority Sites gy 'INqbi 4` a} Q• 4 T f AYSDn Fd�FyJRl4 Ave q 7 ,q k hidl r41 a' � o #,r, +t _ PISrk 2 r kNh Si �OWOW 4U� � tpe4c '=k- s Awry L�r p SL ; 451 alk 4 T' Th �.��r•a15� h"} 5 4 � il"F0 Yr� Y 7 i. ,-0 i F"ic� _ AD. IN Ip .. ?L Fudia FJr• ~ ti fJ r o d qr i * Yk 3+916ao- !! uaFlYlrAm A 4io a err 51alp+yJy1� fk 1R� W n fir` {* �_ _ * s} F5 iJ${# Alilllarr� CI I'. `¢5T [L ; 4FL. � 6 a � x Y� �t� *,*k` �4�g��,�.ki iLQ'fTfl � } � �� Jtf��d41y C ,q err 4 d St 4 r}I su a v Fafr* Z i! N PJla Nr M li f� dYfS� at i kwgy..i'1 u I off ai•' r r M �. .F V fIP yPreea # f •&111- '.:]I l lOfn7�F'r�gv' Ff} i,y �+ [iw� ,s�atrir`I 3 ; y _ 0 r1 � 9F FryrIr LW f; 1:1 ; CO Y dnclr MCI � �faa'flf_- h moor CiY■ .1L �b UnYk1n $tit 0 4 °a R�r '- "Juy AV4 A CL Uk 1 tf $l I 4WH S f - 1-/YL P t. ' V , i +FSri� GieRR[w�n tided ;dlk1" ' , o S1 n _ $ Sf {! 01111rr Sr A -4rf .fFOrrpF Sr �Ywkt: rh�rf `� "- Lr�41 .a Watertown Departmentof Horsley Witten Group pliftfic, Rthistown.-Sustainable Environmental Solutions We'reallabout imp Lowell School @ Orchard Location Lowell School at Orchard St. Id. No. 9A Impervious Area 0.15 acres Public Visibility High Cost Low Priority Watershed Yes Maintenance Low PI Design in Process No Potential BMP Bioretention Area Beacon Park @ Arsenal St. Location Beacon Park at Arsenal 5t. Id. No. 10 Impervious Area 0.4 acres Public Visibility Medium Cost Medium Priority Watershed No Maintenance Low PI Design in Process Yes Potential BMP Bioretention Area CANOPY TREE IN PLANTING BED Z Y-O" O.0 MIN. REQUIRED GROUNDCOVER/ 3'-0' HIGH GRASSESSHRUBS ZONE 0'-$" H{GH CURB GRADE STORMWATER INLETS SPACED AS APPROPRIATE J 38'-0" TYPICAL INTERIOR LANDSCAPING PLANTING BED w 0 Common St. @ Spring St. Location Common St. at Spring St. Id. No. 1 2A Impervious Area 0.48 acres Public Visibility High Cast Medium Priority Watershed No Maintenance Low PI Design in Process Yes Potential BMP Bioretention Area Hosmer School Entrance "W GRUUNDCUVER/ GRASSES ZONE 0'-$" HIGH GU% GRADE Location Hosmer School Entrance Id. No. 1 5A Impervious Area 0.14 acres Public Visibility High Cost Medium Priority Watershed Yes Maintenance Low PI Design in Process No Potential BMP Bioretention Area REQUIRED 3'-0' HIGH SHRUBS STORNWATER INLETS SPACED AS APPROPRIATE CANOPY TREE N PLANTING BED ZS'-O° O.0 MIN. 38'-0" TYPICAL INTERIOR LANDSCAPING PLANTING BED DPW — Parking Lot Location Department of Public Works Id. No. 21 Impervious Area 0.46 acres Public Visibility High Cost Low Priority Watershed Yes Maintenance Low PI Design in Process No Potential BMP Bioretention Area REOUIREO CANOPY THE GROLMOCOVER/GRASSES CAR OVERHANG 20NE P11118Ir CAROVERH OVERHANG CAR OVERHANG ZONE ZONE ' TREE A -SHRUBS 2'-0" ZONE ELEVATED CATCH' REQUIRED BASIN 0'-5" ABOVE 36" HIGH f�01011DIIIG DEPTH SHRUBS Q'_6^ 6' HIGH CLRR W/ d BELOW STORMWATER INLETS w PLANTING PARKING SOIL GRACE MAXIMUM PONOING LINE o_q GRAVEL �.0 �� , FILTER FABRIC BASE - PIPE CONNECTED TO 4" TO 6" PERFORATED PIPE ON -SITE STORMWATER CONNECTED TO ON -SITE SYSTEM W-O" MINIMIM! STORMWATER SYSTEM 2 Pilot Projects — 30% Design Sept. 15, 2016 — SAC Meeting Ranked Sites Based on: • Project Complexity/ Cost • Effectiveness/ Impervious Area • Public Education and Visibility • Constructability / Soils, Slopes • Maintenance Watertown Departmentof P4allaMouFtil-JrRthisWetown.- Horsley Witten Group Sustainable Environmental Solutions 30% Design Nov. 2016: Visited Both Properties Dec. 2016/Jan. 2017: Sail Testing Feb. 2017: DPW Property Surveyed March 2017: Designed DPW Bioretention April 2017: Hosmer School Plan Developed May 2017: Designed Hosmer Bioretention June 2017: Met with SAC to Discuss Designs Watertown Departmentof P4allaMouFtil-JrRthisWetown.- Horsley Witten Group Sustainable Environmental Solutions V Department of Public Works 300/( 1�- ',L4W J", + ' T - e s g n. = -� JA66 f . 1 A O �E DPW — 30% Design non. — - rx NSA��$�LSLI _ t YA -.1I 1 SAYP1rT L IN C r mfi� u�l� RYE $ L'NI:TM� i4Lf TZ V. Q1 RL 6Y 31 — — Mid PC 14% hGa� PATCH R'aIbyU ORAA LQlG1M - U Lr +"R'S� IM�5t3TJfli1X ' "• r LMUT1 I+ Ir Lr Horsley Witten Group istainable Environmental Solutions C.. Legend `1 Catchment Area Potential Bioretention p Drainage Manhole Y ❑ Catchbasin W*E Drain Pipe 2ft. Contours 1" = 50 Feet 0, 4--, - WIPM1 I HANCOCK STREET a_ Flosmer qElementary r . f0.r+i��■� Hosimer So .3007o Hosmer School — 30% Design ' • i"� F+Gkt4k7 HANCOCK ST.;Y.� % n Irt'LTMS' aM C�Qn ^r,ak YLkTCIS x r. •. Q-,iDr c u Ri {i7 - "r1o"aC T4 - .1=.0 CJRLCLT LhC CM a RN. PQ IW NO Rr-Ulrr Oh AMA M {w «Mk in G :t n -:.v � f _ I ¢ i I CURB Uff Soi Cr1J STFN3 1h4_ f Y 7 T8 N C#LU 4 f k Ci .5 I 7 Horsley Witten Group Sustainable Environmental Solutions Next Steps for Pilot Projects • Discuss Design and Educational Opportunities with Hosmer School • Land Survey for Hosmer School • Relocate 2 spaces in DPW Lot • Finalize Designs • Finalize Plant Choices • Obtain Construction Funding • Develop GIS Tracking of GI Sites Watertown Deparimentof Horsley Witten Group EqMFASustainable Environmental Solutions ...this town.'" � Ah Alb, . • ��. 1 r `gin • � _ �' •lY'�w,,i �� -.• '« Tw • � • � ''ri3' • '� q rl,+la�r \ y�rt +may -lam• :. '►� i w' y • 1-�f. , '+ a tt •. i J 1� t ti. . I ` 1 ."t i - ,+•Tye .y.Fy, �' 11 , ' I E'-ti 1-' ..y5. r l / I • r' '�AV "M :p i w .imp d I� A . . . . . . . . . . . . . . . . . . . . . . . 'RIFT\Rz:i■r. .Af -W this town. \L �. .al m wn O*town f ic. ut ... th Edenfield Avenue r ,na �nvcn i r rerf;�,,,red z I. ncrwe TME - TF3 s y x � � lar nm[nPi F um,aL PLM o rm WTI" aOXa�0e NT I PC*P- -TE —an-11'lTI"77L1 —ad cG' tns LDRIIy. ITIr I ,aer � 25 � rurMT4 . 00- ry1lMCbidf Y 5 • I Pw I La.: Rw Edffr�3 fi'•7. m Vm .. .I I Horsley Witten Group Sustainable Environmental Solutions L:, Common Street •.:3111 _ y 4 i. . R TREE TRENCH 1 TREE TRENCH 2 cck 61ORETENTION 1 Horsley Witten Group Sustainable Environmental Solutions s �. '� ; • ,��' '"' ,ram �� E 1 Ar ��1; --- -------_------------� _� , 'r �� __•ter ".`°"-�"-,-..�`T��) tom''' ?��-•`-2s- }i_ ... � :,1e4s 'ro,•',-+,fit w+4 ON - /♦ y�'C+,err ;i' yid t'ij - '1 Stormwater Management • Stormwater Ordinance • 5,000 square foot land disturbance threshold • Increases impervious area by more than 500 square feet • Creates or modifies a direct connection to the Town's drainage system 7 Watertown Departmentof PON RWe're all about is town. - Horsley Witten Group Sustainable Environmental Solutions LQ Benefits of Stormwater Ordinance • Treat stormwater at the source before entering the Town's drainage system • Reduce flows, preserve or increase capacity for the Town's system • Remove pollutants and sediment • Reduce overall burden and costs to the Town Watertown Departmentof P4allaMouFtil-JrRthisWetown.- Horsley Witten Group Sustainable Environmental Solutions Stormwater Ordinance Goals • Implement erosion and sediment controls • Estimate site stormwater runoff for key storms — Up to 100-year, 24-hour storm = 8.9 inches of rain • Keep runoff on -site as much as possible using infiltration • Provide water quality treatment • Ensure operation and maintenance • Record "as -built" conditions 7 Watertown Departmentof PON RWe're all about is town. - Horsley Witten Group Sustainable Environmental Solutions Implementation Developments will use a variety of methods to achieve stormwater goals, including hard infrastructure and green infrastructure IF 60 Howard St. Watertown Departmentof PublicVorks We're all about. this town. - 655 Mt. Auburn St - CVS Horsley Witten Group Sustainable Environmental Solutions LN , � p � ,�,•� ' R`. �i •fc. NO N.4 ASI urden Park � << r� _ ;.. _! � ; � � :, ��, Y .. � • _, , .,ram "`� Y �yrr �i S'r Sir ! i . - -e •L V: " -:x- J- { J _ tgh r y.�y 'fir,>r — � ... -_. x � • �• � "y+�; a,� � f.r:1" `i� 1 y� -.ri e. ' '.• ~ ryas Y sow=' 'J - 1 �� - _ •is1 .l.r'- � ... oS �T! Bioretention and Rain Gardens 65 Grove Street m wn *town f ic. ut ... th 570 Arsenal Street Marriott Horsley Witten Group Sustainable Environmental Solutions a. Watertown We're all about this town.- Hidden Infrastructure 65 Grove Street Horsley Witten Group Sustainable Environmental Solutions 40 Stormwater Reuse -- Water Storage Cisterns 12' Diameter 14'-4'' Height 9,30$gal Volume Each Athena Garage _4 T - Residential Rain Barrels Depaving 810 Mt. Auburn St. Intelligentsia Cafe 7 Watertown Departmentof PON RWe're all about is town. - Horsley Witten Group Sustainable Environmental Solutions LO Residential Porous Driveways _, 1 202 Arsenal Porous Walk New Driveway M wn Departmentof ic . orut ... this town.- Residential Retrofit W— VM— - , ■ y Yt Horsley Witten Group Sustainable Environmental Solutions Residential Rain Gardens Before Watertown Departmentof P4allaMouFtil- oWethis town. - After Horsley Witten Group Sustainable Environmental Solutions Case Study — 490 Arsenal Way M 7 Watertown Departmentof PON RWe're all about is town.- subsurface infiltration system water quality / infiltration swale Horsley Witten Group Sustainable Environmental Solutions LQ Case Study — 490 Arsenal Way r Cgs) PUVA SEePING M 4W op F7WTIt: 16 IF Watertown Deparimentof Public orks We're all about ... this town.- LINX SOUTH ENTRY PLAZA AND OPEN SPACE AREATAKE OFF: 40,300SQFT aameraoPrva —c Horsley Witten Group Sustainable Environmental Solutions Ah 40 0 -TiY.lD1�� 7�� Case Study — 490 Arsenal Way m wn deparimentof ic . rksut ... this town - Horsley Witten Group Sustainable Environmental Solutions Case Study — 490 Arsenal Way Watertown Deparimentof Horsley Witten Group fWe'reqalllic . oSustainable Environmental Solutionsbout ...this town.'" � Get Involved! • Stormwater Advisory Committee • Storm Drain Stenciling --T � - °+ • Rain Gardens • Rain Barrels • Paved Border Removal • Permeable Pavers Fr FICA Watertown Department of Public Works www.watertownd pw.orq 617-972-6420 Stormwater Advisory Committee www.Ovate mown sto rmwate r. o rq TF Watertown 0ep6rnmnror Public orks We're all about ... this town'" Horsley Witten Group, Inc. www. horsleywitten.com Rich Claytor, P.E. Janet Carter Bernardo, P.E. 857-263-8193 Horsley Witten Group Sustainable Environmental Solutions Questions? Watertown Dvwtywr, of Public low A ;7 4( Horsley Witten Grou Sustainable Environmental Solutions R