Green Infrastructure Plan
Green Infrastructure Plans (GIP) strive to create an interconnected network of natural resources, open/recreational spaces, cultural assets & constructed nature-based systems. GIPs can be used by a locality to guide urban reforestation, development and growth strategies, conservation area or open space acquisition, zoning, & parks and recreation programs while also providing regulatory compliance strategies for floodplain management, hazard mitigation, MS4 permits & Chesapeake Bay TMDLs.
In many cases, GI provides the most cost-effective measures to achieve resilient landscapes that reduce flooding, meet water quality goals & protect against SLR. Connected natural landscapes/shorelines are healthier habitats, more adaptable to stressors & provide greater protection by subduing flooding/storm surges. For Tidewater localities the GI Plan can serve as a comprehensive coastal resource management plan, providing a blueprint of actions & strategies to protect tidal shoreline resources.
From 2010 to 2012, several regional GIPs were funded through the Virginia Coastal Zone Management Program & developed by coastal PDCs. Theseregional plans, which can be further refined by a locality, include: the Hampton Roads GIP, 2012 Northern Virginia Regional Commission Conservation Corridor Plan, 2010 Accomack County, 2010 Northampton County GIP, George Washington Regional Green Infrastructure Plan, Richmond Crater Region Green Infrastructure Project, Northern Neck Conservation Corridor Planning Outreach, 2010 Middle Peninsula Conservation Corridor Plan.
Regional GI planning efforts between Va. Beach & Chesapeake have been incorporated in comprehensive plans, growth management strategies, watershed management plans, parks and recreation plans, sustainability plans, & water quality implementation plans.
GI recommendations from the Southern Watershed Area Management Program (SWAMP), are referenced in the VA Beach Comprehensive Plan and conservation corridor recommendations adopted in Chesapeake’s 2026 Comprehensive Plan. The 2010 HRPDC’s green infrastructure network informed the selection process for creating buffers between military airports in Virginia Beach and the need for further GI analysis of the Northwest River Watershed by Chesapeake & HRPDC in 2010. All of these efforts lead to a more detailed, multi-jurisdictional, multi-stakeholder GIP for the North Landing River Corridor; the Green Sea Blueway and Greenway Management Plan (2015). GI strategies proposed in this plan are informing the Va. Beach parks & rec plan: directing stormwater management & recreational features for future redevelopment & identifying strategic land conservation areas.
Richmond: Partnered with GIC using the regional GIP to identify & target areas for community and site-scale green infrastructure planning. These community scale GIPs have been implemented in inner city neighborhoods to restore and connect green and open spaces, improve tree canopy coverage, incorporate stormwater retrofits, & improve walkability. “Greening Virginia’s Capitol” program implemented a number of stormwater retrofits on and around the Virginia Capitol building.
FEMA HMA Programs: new ‘Climate Resilient Mitigation Activities’ eligible for funding: Aquifer Storage and Recovery, Floodplain and Stream Restoration (FSR), Flood Diversion and Storage (FDS), & Green Infrastructure Methods. See Wetlands Watch primer for examples & info.
NFWF’s Chesapeake Bay Stewardship Fund: awards $8-12 million annuallyfor wetland & forested buffer restoration, oyster reef creation, & open space preservation
Virginia Clean Water Revolving Loan Fund: expanded to establish Living Shoreline Loan Program
Marine Habitat Restoration: Funds projects that improve coastal resiliency
HUD Community Development Block Grant Program: incorporate GI into CDBG projects
Stormwater utilities & fees: raised through permits, inspections, & impact fees on new development
EX: Pennsylvania gas impact fee
VDCR could provide grant funding for “floodplains by design” projects, similar to Washington state’s grant program.
Virginia Department of Forestry & the USDA Forest Service Southern Region grants administered by the Green Infrastructure Center
National Park Service Land and Water Conservation Fund: Matching grants for acquisition and development of outdoor recreation areas
Locality interview feedback: Not enough money to install natural infrastructure where needed/wanted
Locality interview feedback: Most of shoreline in private ownership, difficult to access, fund, or prioritize green infrastructure projects on private lands.
Local staff prioritize programs that achieve multiple benefits. GI provides:
- Enhanced community character
- Reduction of air & noise pollution and urban heat island effects
- Credit-generation for MS4, TMDL, & CRS
- Habitat and water quality protection
- Stormwater, floodplain and shoreline management
- EPA FEMA study (prepared by Atkins and in consultation with FEMA) found expanding green infrastructure on new development & redevelopment could result in the avoidance of $636-136 million of flood losses annually by 2040.
- Collaborative planning process provides opportunities to identify multiple benefits & foster collaboration between departments
- GI often benefits multiple departments, expenses can be cost-effectively shared among several revenue sources - a more efficient use of limited dollars
- Reduce the need for costly upgrades to grey infrastructure in urban areas and meet regulatory compliance associated with MS4 permits & CSO.
- Maintenance is a critical component of the success of green infrastructure stormwater practices, but many landscapers & contractors lack the experience necessary to ensure proper operation.
- Solution: the Chesapeake Bay Landscape Professional Certification Program will offer credentialing to ensure landscaping professionals are thoroughly trained in the design, installation, & maintenance of BMPs.
- Expense of projects and perceived high costs over short and long-term
- Private ownership of shorelines reduces locality involvement outside of permitting shoreline stabilization
- Public perception and lack of trust that nature-based solutions will function properly or provide the necessary shoreline protection.
GIPs should prioritize actions based on improved connectivity, effectiveness, ease of implementation & the protection of natural assets. Ex: Forest restoration is cost-effective way of enhancing stormwater infiltration, by connecting a re-forestation project to an adjacent larger wooded area or prioritizing re-establishment of a riparian buffer or RPA, the project has greater ecological and water quality impacts that meet Chesapeake Bay TMDL goals. LID & environmental site design for new development/redevelopment should be encouraged next, then green streets and green infrastructure stormwater retrofit practices to restore hydrological function to the landscape and mitigate negative effects of existing development. Ex: replacing turf with conservation landscaped beds as shoreline buffers are easier to install than rain gardens and buffer shorelines and wetlands; living walls are easy to implement & require less space than green roofs.
The Green Infrastructure Center provides technical assistance & GI planning to many VA localities including Richmond, Accomack, New Kent & Norfolk.
Typical components of a green infrastructure plan can include:
- Trees: forests, riparian buffers, canopy/tree inventory
- Water resources including: rivers and streams, tidal and non-tidal wetlands, lakes, estuaries, and aquifers.
- Review of ordinance language to see where GI can be implemented
- Development of conservation/acquisition strategies
- Mapping of existing natural infrastructure & locations for future installation
- Public involvement (especially useful given the opportunities to implement green infrastructure on private property)
- Mapping of cultural assets and public open spaces
1: Up to 100 points (Activity 510, Natural Floodplain Functions Plan (NFP), Manual pg. 510-235)
Credit for adopting plans that protect natural floodplain functions.
Code of Virginia, § 15.2-2223.2
A Comprehensive Coastal Resource Management Plan must be included in comprehensive plans [required for Tidewater localities]
Code of Virginia, § 15.2-2223.3
Comprehensive plans must incorporate strategies to combat projected sea-level rise & recurrent flooding [required for localities within the Hampton Roads Planning District Commission]
Code of Virginia, § 28.2-104.1
Establishes a general permit encouraging the use of living shorelines as the preferred alternative for stabilizing tidal shorelines
Establishes the Federal Flood Risk Management Standard (FFRMS), which calls for federal agencies to use natural systems, ecosystem processes, & nature based-solutions (where possible) when developing flood management alternatives.
i-Tree (USDA): rural & urban forestry software suite that helps quantify the environmental services provided by tree canopies.
Green Values Stormwater Calculator (CNT): compares the cost & benefits of green infrastructure to conventional stormwater practices.
Landscape Fragmentation Tool (Digital Coast): analyzes land cover fragmentation to identify core regions without fragmentation, which have higher ecological values
CCVI (NatureServe): climate change vulnerability index for relative vulnerability of flora and fauna to climate change.
EPA City Green Report & EPA Green Infrastructure Technical Assistance Report (2015): recommendations & lessons learned from green infrastructure projects across the country.
Flood Loss Avoidance Benefits of Green Infrastructure for Stormwater Management (EPA): modeling study estimates benefits from small stormwater retention practices
Locality Assistance Program for Natural Heritage Conservation: DCR program that provides localities with tools and data useful in GI planning
Green Infrastructure Toolkit (Georgetown Climate Center): Details the planning, implementation, and funding sources used in green infrastructure in cities around the country.
Promoting Green Streets- A Recipe for Integrating Water and Transportation Infrastructure (River Network): Supports local staff in determining the potential & developing strategies for the implementation of green streets
Visualizing Ecosystem Land Management Assessments Model 2.0 (EPA): Assesses options for using GI to reduce non point source pollution, and addresses GI maintenance and longevity.
Green Infrastructure Wizard (EPA): Repository of EPA-sourced GI tools and resources
Atkins. (2015). Flood Loss Avoidance Benefits of Green Infrastructure for Stormwater Management. Environmental Protection Agency, Office of Wetlands, Oceans and Watersheds.
Bitting, J., & Kloss, C. (2008 ). Managing Wet Weather with Green Infrastructure . Low Impact Development Center.
EPA. (2010). Green Infrastructure Case Studies: Municipal Policies for Managing Stormwater with Green Infrastructure . Environmental Protection Agency, Office of Wetlands, Oceans and Watersheds.
Firehock, Karen & Walker, R.A. (2015). Strategic Green Infrastructure Planning: A multi-scale approach. Green Infrastructure Center.
Kidd, S., McFarlane, B., & Walberg, E. (2010). A Green Infrastructure Plan for the Hampton Roads Region. Hampton Roads Planning District Commission.
Rouse, D., & Bunster-Ossa, I. (2013). Green Infrastructure: A Landscape Approach . American Planning Association.
Walberg, E. (2007). Green Infrastructure in Hampton Roads. HRPDC.