Tools for Green Infrastructure Planning & Implementation - PowerPoint PPT Presentation

Tools for Green Infrastructure Planning & Implementation Moving Green Infrastructure From “State of the Art” to “Standard Practice” New Jersey Planning Conference │ January, 2015

Step-by-Step Guide to Creating a Neighborhood Green Infrastructure Strategy Urban Water Infrastructure Agenda for Change // Working Group Meeting convened by: New Jersey Future Johnson Foundation at Wingspread Geraldine R. Dodge Foundation Credit: www.phillywatersheds.org

Urban Water Solutions – Agenda for Change Integrated Water Infrastructure Solutions for Sustainable Cities Recommended Action Steps 1. Educate and Raise Awareness 2. Optimize Existing Systems and Implement Asset Management 3. Build Capacity and Foster Cross-Jurisdictional Collaboration 4. Leverage Early Successes to Generate Political Support 5. Diversify Funding Solutions Work Plan / Project Areas 1. Support adoption of effective and innovative LTCPs 2. Optimize existing systems Green 3. Develop a green infrastructure focus Infrastructure 4. Employ resilient, state-of-the-art gray and green infrastructure Strategic Plan 5. Identify and establish new funding tools Committee 6. Raise awareness of CSO Problems and solutions 3

Why develop a Green Infrastructure Guide? Focus on LTCP Communities, Educate all Communities GOAL • Provide a concise, easy-to-follow and illustrative guide for strategically implementing scalable green infrastructure BMPs, starting at the neighborhood level. PURPOSE • Enable community organizations to undertake green infrastructure strategic planning to maximize stormwater management and water quality benefits, positioning communities to obtain funding for green infrastructure implementation. AUDIENCE • Community and non-profit organizations, municipal Green Teams and Environmental Commissions. Target audience includes communities with separate storm sewer systems that will not be required to draft Long Term Control Plans. 4 Photo Credit: Center for Neighborhood Technology

Scales of Green Infrastructure  Scalable Planning Process 5 Graphic Credit: Rutgers Water Resources Program, Green Infrastructure Feasibility Study, Little Falls

Learn from your neighbors Review existing plans New Jersey • NJ DEP • Rutgers Water Resources • Sustainable Jersey • NY-NJ Baykeeper • New Jersey Future National • U.S. EPA • NRDC Rooftops to Rivers • Low Impact Development Center • Center for Neighborhood Technology • Savetherain.us 6 Plans Credit: Rutgers Cooperative Extension Water Resources Program, City Of Lancaster

Developing a Green Infrastructure Strategy STEP 1. STEP 3. STEP 2. Understand Green Identify Understand your Infrastructure Opportunities and Context BMPs Constraints STEP 6. STEP 4. STEP 5. Evaluate Potential Set Targets and Identify Potential Sites and Develop Metrics Sites Recommendations STEP 7. Develop Action Steps toward Implementation 7

STEP 1. 1. Menu of Green Resources: Infrastructure BMPs Understand Green • NJDEP Green Infrastructure website Infrastructure BMPs • Infiltration • EPA Green Infrastructure • Detention website • Retention What are the types of GI BMPs? • Rutgers Water Resources 2. General Siting Criteria Where are they most Website appropriate? • Rain Garden Manual of 3. Cost Effectiveness Where are they most cost New Jersey effective? 8 Graphic Credit: NJDEP, Rutgers Water Resources Program, US EPA

Example Community: Mountainview, Wayne, NJ STEP 2. Review Available Data: Resources: Understand Flooding in • ArcGIS Online 1. Impervious cover your Community • Google Earth 2. Watersheds • New Jersey Flood Mapper 3. Floodprone areas • FEMA Flood Hazard Areas Where does stormwater 4. Geology (bedrock, • USGS Web Soil Survey flooding occur? groundwater table, soils) How does stormwater flow 5. Topography there? 6. Land use context 7. Sewer network 9 Map Credit: ESRI, FEMA, Rutgers

A B C Example Community: Mountainview, Wayne, NJ STEP 3. Suitable areas for: Resources: Identify Opportunities • US EPA Green Vegetative BMPs A Infrastructure website and Constraints (Infiltration) • Rutgers Water Resources Rainwater harvesting Program website B Where is shallow depth to the BMPs • Rain Garden Manual of water table or bedrock? New Jersey (Detention) How can you slow or capture water upstream from flood Storage BMPs C prone areas? (Retention) 10 Map Credit: ESRI, USGS

STEP 4. 1. Reduction in X% Resources: impervious cover Set Targets and Metrics • NRDC Rooftops to Rivers 2. Manage runoff from X% of • NYC Green Infrastructure Plan impervious cover using GI What do you want to achieve? • Green Infrastructure in BMPs What goals are feasible? New Jersey – The Current 3. Implementation of X GI Over what time frame? State of Implementation, Pilot Projects NRDC 4. Implementation of X SF or number of specific BMPs 11 Graphic Credit: NYC DEP, Hoboken Green Infrastructure Strategic Plan

1. Water Utility Right of Way / Morris Canal Greenway 2. Retail on Route 23 3. Churches along Alps Road 4. Residential Properties north of Mountainview Example Community: Mountainview, Wayne, NJ STEP 5. Opportunity sites: Resources: Identify Potential Sites • Town Master Plan Public or Community 1 • NJ Parcel Map property, parks • NJ GIN Explorer What sites are most feasible for Parking Areas 2 • Open Street Map GI implementation? Nonprofit or Religious What land use / property 3 owners are the best target for Institutions GI implementation? Residential and 4 Commercial Properties 12 Map Credit: ESRI

Example Site: Ambulance Corps, Mountainview, Wayne, NJ STEP 6. • Identify the best BMPs Resources: for those sites with the Evaluate Potential Sites • EPA National Stormwater highest opportunity Calculator and Develop • Technical Assistance: Recommendations • Which BMPs capture the  Rutgers Water Resources most stormwater for the  Town Planner and Engineer lowest cost? Which of the potential sites  Pro bono / Professional give you the most bang for the • Evaluate the benefits Organizations / Universities buck?  Sustainable Jersey • Recognize the need for technical assistance 13 Graphic Credit: EPA National Stormwater Calculator

Policy & Regulatory Funding Education • Land Use Policy • Capital Planning • Pilot Projects • Performance Zoning • Grant programs • Workshops / • Retention Standard Training • Loan Programs • GI Requirement • Maintenance • Innovative financing • Incentives • Water Conservation • Public private • Stormwater / partnerships Development / Impact Fees • Economic Incentives STEP 7. Resources: Develop Action Steps • NRDC Rooftops to Rivers toward Implementation • NJEIT • NJDEP website • US EPA website How do you get there? • Sustainable Jersey Who are your partners? website What are your highest priorities? 14

Case Study: Hoboken Green Infrastructure Strategic Plan TOGETHER NORTH JERSEY Local Demonstration Project Project Partners: NJ TRANSIT , City of Hoboken, Hudson County, Hoboken Quality of Life Coalition, HOPES Community Action Network, North Hudson Sewerage Authority, Stevens Perkins Eastman │Louis Berger │Clarke Caton Hintze Team

Best Management Practices (BMPs) Benefits: Flooding Mitigation, Ecological, Cost: Capital, Operations & Useful life Storage Capacity Public Health, Open Space Maintenance Determined the most beneficial BMPs and ideal distribution Siting Considerations Size: Drainage area, Vertical Constraints: Groundwater Topography: Soils: Permeability, Pros / Cons Physical Sq. Ft. Table, Bedrock Depth Slope, Contours Infiltration Rate Identified the gray zone, modified distribution based on siting Sewershed Characteristics Analysis of Hoboken’s stormwater Land Use Context Constraints Opportunities Impervious Coverage management system Recommended specific BMPs for each sewershed based on siting and sewershed characteristics Benefits of Green Infrastructure by Sewershed Impervious Area Goal of Impervious Area Calculate Potential Stormwater Distribution of Impervious outside of the ‘gray Captured/Stored by Green Captured/Stored by Green Area per BMP (sq. ft.) zone' (sq. ft) Infrastructure (15 %) Infrastructure (cu. ft)

Detention Detain stormwater through above-ground BMPs. Detention BMPs: • Rainwater harvesting • Green/blue roofs • Subsurface storage Smaller-scale BMPs for long term incremental benefit: • Daylighting areas • Commercial Property Retrofits • Public property including parks and schools Jersey City Graphic Credit: Hoboken Green Infrastructure Strategic Plan

Infiltration Infiltrate stormwater using vegetated BMPs. Infiltration BMPs: • Rain gardens • Swales • Stormwater trees • Infiltration planters • Permeable pavements Graphic Credit: Hoboken Green Infrastructure Strategic Plan

Retention Retain stormwater focusing on the Western Edge and Potential North End Rehabilitation Areas. Retention BMPs: • Basins or ponds • Constructed wetlands • Subsurface storage Large-Scale BMPs for more immediate Impact: • Subsurface Storage under Park; • Constructed wetlands or basin in Rehabilitation Areas Jersey City Graphic Credit: Hoboken Green Infrastructure Strategic Plan