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Peter LowittDevens Enterprise Commission
Green Infrastructure Green Roof Policy Workshop
Green Infrastructure Policy in the Development of Devens Regional Enterprise Zone
Peter Lowitt, FAICPDirector:
Devens Enterprise Commission
How Devens has facilitated GI and LID?
•Strong leadership (local gov’t)
•Communication/Partnerships
•Build on Progressive Strategy :- Education- Incentives- Regulations- Guidelines
Fact Sheets - Composting, reuse & recycling guidance
- Benefits of Street Trees- EPA LID Fact Sheets and MA
Smart Growth Toolkit, UNH Stormwater Management Center
Case Studies - LID and Zero Net Energy (seeing is believing!)
Coordination with other departments (leading by example – Department of Public Works & Engineering.)
Education:
Devens Street tree inventory and replacement program
Education:
Incentives: Expedited permitting (Building Reuse 30 days)SWM credit for LID and green roofsRenewable Energy Building and Electrical Permit
Fee ReductionsNet Metering policy (municipal utility)Financial incentives for LEED projects (15% fee
refund)LEED templates for various credits provided by
municipality
Bio-filtration landscape Islands in New Parking Lot
of Office Complex
Adaptive building re-use (Eglomise Designs)
Devens Enterprise Commission:Green Roof Policies and Programs
Target the green infrastructure policy to the goals you want to achieve on a neighborhood by neighborhood basis– remember vegetated roofs and walls are the best multi-tasking tools available.
Viewshed Overlay Greenhouse Gas Mitigation PolicyPublic health asthma reductionStormwater managementUrban food productionGreen Area Factor (under review)
Regulations to facilitate Green Infrastructure:Subdivision
-Complete Streets Standards (street trees, LID drainage, reduced pavement widths, pedestrian scale design)-Additional street types (neighborhood, parkway – more green,
less grey)-Traffic calming measures (chicanes, bump-outs – additional
planting opportunities.)Site Plan-Green Roof & Green Wall Regulations-Tree Protection and Steep Slope Overlay -EV & carpool parking, parking maximums, bike lanes, anti-idling (HI, GHG/TDM)-LID required as first approach for stormwater management
General Regulations-Updated stormwater and low-impact development standards (DEP & UNH)-Renewable energy standards (Green Communities) and water efficiency-Greenhouse Gas mitigation standards (Stretch Code, green roofs, inventory)
http://www.devensec.com/devserv.html
Green Infrastructure Guidelines: • http://www.devensec.com/development/
Green_Infrastructure_Guidelines_Final_8-12-14.pdf:• Emphasizing how GI meets multiple
regulatory requirements• Mapping of where GI connections are needed
most• Linking Reuse Plan, Open Space & Trail Plan
objectives• Appendices with examples, resources
Guidelines:
Low-Impact Development (LID)Devens Case Study: 27 Jackson Road
Apex bio-filtration landscape islands (Phase 1)Apex bio-filtration landscape islands (Phase 2)
Total Traditional Project Cost:$1,004,000LID Reduced site paving -$32,000LID Reduced curbing -$50,000LID Reduced stormwater piping -$14,000LID Reduced stormwater structures -$68,000LID Increased landscaping +$12,000LID Increased site preparation +$10,000LID Increased soil mix +$18,000Total Estimated LID Savings: -$124,000 (12%)
Green Infrastructure LID Techniques for Stormwater Management at Devens
Greening Infrastructure Upgrades- Vegetated roadside swales- Micro-basins (local recharge)- Native wildflower and grasses
(low maintenance, increased infiltration)
LID Techniques for Stormwater Management Incorporated into Projects at Devens
Nypro bio-filtration landscape islands Natural open drainage vs. piping and catch basins
Devens Common underground infiltration systemsDevens Common cisterns collecting roof runoff
Frag. Developed
Frag. Patches/Edge
Unfragmented Patches
Results:Triple Bottom-Line approach –
Fulfilling Reuse Plan Objectives
Climate mitigation & adaptation (HI, GHG, resiliency)
Healthier, more attractive natural and built environments
Connecting people with nature Right mix: balance of
Education, Incentives, Guidelines & Regulations
Recommended