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Clean Water Construction Grant Program - Funded Projects

Green Alley off 18th Place NE, during and after construction<< Back to Clean Water Construction Grant Program main page  

CWC Project Sites

To date, the CWC Program has directed funding to 31 projects for the implementation of 6 green roofs; 23 roadway retrofits, including 7 watershed-wide sites; 23 schoolyard and parkland green infrastructure retrofits; pollution prevention and stormwater treatment at 2 trash transfer stations; 7 stream and/or outfall restoration projects; 11 cutting-edge nutrient removal facilities at Blue Plains Wastewater Treatment Plant; 4 other sewage infrastructure projects; and 4 citywide projects. Projects are displayed in the map below and in the subsequent table.

Click on the double arrow at the top of the map to view the legend. Click on any point to read about the project.

DOEE Projects Green & Grey Infrastructure

CWC Grant & Match Contribution

Project Site(s)

Green Infrastructure: Green Roofs

Green Roofs


RiverSmart Homes



Green Infrastructure: Roadway Retrofits

19th Street Green Streets


19th Street NW

Alger Park Upland LIDs


Alger Park Subwatershed

Dix Street Green Infrastructure Project


Dix Street NE

Green Alleys


Green Infrastructure Enhancements (Tree Planting in Public Space) & Impervious Surface Removal



Green Infrastructure Right of Way Retrofit


Klingle Trail Watershed Green Streets


Klingle Trail Subwatershed

Low Impact Development Retrofits in the Public Right of Way


Oregon Avenue Watershed Green Streets


Oregon Avenue Subwatershed

Oxon Run Green Streets


Oxon Run Trail

Green Infrastructure: School/Parkland Retrofit

Schoolyard and Parkland Stormwater Retrofits


RiverSmart Schools


Green Infrastructure: Stream/Outfall Restoration

Alger Park Stream Restoration


Alger Park Stream

Broad Branch Stream Restoration


Broad Branch Stream

District Stormwater Outfall Restoration


Fort Dupont Stream and Wetland Restoration


Fort Dupont Tributary

Nash Run Stream Restoration


Nash Run Stream

Grey Infrastructure: Pollution Prevention

Trash Transfer Station Improvements


Total Funding for Green & Grey Infrastructure Projects 2011-2018



Descriptions of the four citywide CWC-funded projects follow:

  1. Green Infrastructure Enhancements and Impervious Surface Removal – This project supports the District’s Urban Forestry Division’s program to maximize the water quality benefits provided by street trees in the District by installing new tree boxes, planting trees in empty tree boxes, and protecting mature trees by replacing their impervious surroundings with pervious asphalt that allows rainwater infiltration to tree roots.
  2. Large Parcel Canopy Tree Planting – This project helps the District meet its 40% tree canopy goal by planting large canopy trees on District properties that can support dense plantings.
  3. RiverSmart Homes Program (supplementary funding) – This program provides homeowners with rebates to install their own trees, rain barrels, or rain gardens or remove impervious surfaces from their property and replace it with permeable pavers and/or vegetation to promote the infiltration of stormwater.
  4. Citywide sewer rehabilitations – This project rehabilitated sewer mains in key locations throughout the District.

DC Water Projects Sewage Infrastructure

CWC Grant Contribution

Project Type

Additional Chemical Systems


Nutrient Removal

Additional Dewatering Facilities


Nutrient Removal

Anacostia Combined Sewer Separation


Sewer Upgrade

Area Substation Upgrades


Nutrient Removal & Resource/Energy Efficiency

Biological Sludge Thickening Facility Rehabilitation


Nutrient Removal

Enhanced Nitrogen Removal Facilities


Nutrient Removal

Filtration and Disinfection Facility Upgrades


Nutrient Removal & Resource/Energy Efficiency

Filtration Treatment Facility Upgrade


Nutrient Removal & Resource/Energy Efficiency

Gravity Thickener Upgrades Project


Nutrient Removal

Influent Screen Facilities & Grit Chamber Facility Upgrade


Pollution Prevention (Removal of Solids from Overflow)

Nitrification/Denitrification Facilities Upgrades


Nutrient Removal

Raw Wastewater Pump Station Upgrades


Nutrient Removal & Resource/Energy Efficiency

Rock Creek Combined Sewer Separation


Sewer Upgrade

Secondary Treatment Facilities Upgrade


Nutrient Removal

Sewer Rehabilitations


Sewer Rehabilitation

Tide Gate Improvements


Flood Control

Watts Branch Sewer Rehabilitation


Sewer Rehabilitation

Total Federal Funding for Sewage Infrastructure Projects 2007-2019



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