2Project Background and Objectives Develop a green infrastructure Master Plan for the New York Avenue Corridor from North Capitol Street, N.E. to Bladensburg Road, N.E., the surrounding neighborhoods of the Florida Avenue Market, Ivy City, North of Massachusetts Avenue (NOMA), Gallaudet and other key areas in the corridor.
3What is Green Infrastructure? The integration of green stormwater techniques, such as raingardens, permeable pavements, rainwater harvesting, soil amendments, and rainwater harvesting that reduce the volume of stormwater and filter pollutants from rainfall runoff through natural processes into roadways, streets, and trails. These techniques have multiple benefits such as improving air quality, shading, and aesthetics.
4Key GoalsDevelop a sustainable infrastructure that promotes and enhances multi-modal transportation strategies for bikes, trails, walking, and transit. These recommendations are based on key environmental, social, and economic considerations, otherwise known as the Triple Bottom Line analysis.
5Key Elements of the Plan Provide recommendations on how to implement environmentally-progressive infrastructure practicesProvide recommendations on reducing; the volume and pollutant loads from stormwater runoff, urban heat island effects, and energy consumptionProvide conceptual design drawings that showcase potential techniquesProvide educational information to improve investment opportunities and the public perception of the corridorIdentify strategies that improve the quality of life for residents and businesses through integrated environmental planning
6Project Work PlanReview existing studies and master plans, transportation improvements, and development projects for opportunities to integrate green infrastructure into the planning and design of projectsDevelop protocols and metrics for the analysis and planning of green infrastructure improvmentsConduct inventories of the corridor in order to rank and select project areasConduct analysis of potential projects and rank and prioritize areas for planning investmentsDevelop master plan and project recommendations and produce a report on the effortDevelop and conduct an outreach programIdentify potential funding sources for improvements
7Background and Review of the Corridor There are a range of street types, land uses, and age of construction and developmentThe area is highly developed and the natural landscape has been significantly altered. The soils are poorly drained and do not have significant capacity to infiltrate stormwaterThe corridor drains to the Combined Sewer System (CSS) and the Municipal Separate Storm Sewer System (MS4). The CSS is a combination of storm and sanitary drainage that is collected and treated at Blue Plains. This system overflows in large storm events and creates potential health and environmental . The MS4 system drains to the
8Background and Review of the Corridor The corridor drains to the Combined Sewer System (CSS) and the Municipal Separate Storm Sewer System (MS4). The CSS is a combination of storm and sanitary drainage that is collected and treated at Blue Plains. This system overflows in large storm events and creates potential health and environmental problems. The city is trying to reduce the volume of stormwater runoff to the system. The MS4 system drains to the Anacostia. The system does not include Best Management Practices to treat runoff. There are numerous retrofit projects that are being proposed and new developments must treat stormwater.
9Background and Review of the Corridor Opportunities exist within the current master, or area plans within the corridor to incorporate green infrastructure without requiring modifications to the plan languageThere are several significant transportation improvements that are currently planned or underway. There are opportunities to incorporate green infrastructure into the designs for entrance improvement to private properties and at key intersections
10There are significant opportunities to redesign bus shelters to incorporate green infrastructure elements that provide shade and improve the appearance of the structuresThere are opportunities for trail improvements and realignment along the corridor and to surrounding areasBus shelter concept design with green roofConcept for improved trail along New York Ave. by Arboretum
11Key Selection Criteria Projects that can create “Green Reference Points” or foundations for further investmentsOpportunities to connect neighborhoods and promote multi-modal transportation benefitsEnhancement of Master Plan GoalsReduction of stormwater volume in CSS areasTreatment of pollutant loads and avoidance of stormwater treatment costs in MS4Location on public property or within the street right-of-wayHeat stress reduction and improved air qualityPotential for generation of local green jobsImproved property value
12Project Selection Criteria Detailed evaluation criteria and rankings were based on Social, Human Health, Environmental, and Economic BenefitsKey selection criteria includes:Projects that can create “Green Reference Points” or foundations for further investmentsOpportunities to connect neighborhoods and promote multi-modal transportation benefitsEnhancement of Master Plan GoalsReduction of stormwater volume or pollutant loadsLocation on public property or within the street right-of-way
14Key Project Recommendations Project recommendations fall into one of four categories:General recommendationsTransportationMulti-useArea specificThe following pages list some of the key recommendations from the study
15General Recommendations Limit curb cuts in order to improve circulation and appearance of the streetscapeIntegrate and coordinate stormwater controls, such as raingardens and permeable pavements from site development projects with right-of-way green infrastructure improvements
16General Recommendations Construct Green Alleys with permeable pavementsCreate landscape amenities at key locationsDevelop signage that creates an “identity” for the corridorInstall green roofs on large commercial, office, and industrial properties as well as schools and public facilitiesGreen Roof at USDOT HQ Washington, D.C.
17General Recommendations Retrofit residential streets with curb bumpouts to reduce the volume and treat stormwater pollutant loads. This will also improve pedestrian safety and create green nodes at street intersections.Street Cross Section
18Transportation Improvements Relocate and provide bus shelters with innovative energy, shading, and experience elements
19Multi-Use Trail Recommendations Create linkages and integrated trail systems
20Area Specific Recommendations RaingardensExpanded tree boxes and raingardens near existing drainage inlets at Mount Olivet Road and Capitol Ave. N.E.
21Area Specific Recommendations Expanded tree boxes and rain gardens near existing drainage inlets at Mount Olivet Road and Capitol Ave. N.E.bioretentioninletNY AvenuePlan ViewSection
22Funding SourcesThere are several potential funding sources for green infrastructure improvements. There are currently nationwide federal grants available for stormwater water quality improvements through the US Environmental Protection Agency (USEPA) . The federal program also includes grants that are targeted for construction and demonstration projects in the Chesapeake Bay Watershed. Transportation improvements, biking and walking, and community development improvement programs are sponsored by the Federal Highway Administration (FHWA) and joint agency programs, such as the Department of Housing and Urban Development, USEPA, and FHWA.Utilities are also starting to consider the construction of green infrastructure practices to reduce, or offset, stormwater volumes that go to their Combined Sewer Systems as part of their Long Term Control Plans to reduce overflows to receiving waters.Public and Private partnerships are being developed to finance and construct green infrastructure as part of jobs programs and economic development.