Green Infrastructure Challenge

Boundary Map
Rock Creek and
Potomac Drainage
Area Map

In April 2013, DC Water launched the Green Infrastructure Challenge, engaging firms to design innovative green practices that absorb rain water. These practices, known as Green Infrastructure, include installing green roofs (gardens on rooftops), rain gardens, rain barrels, and pervious pavements, removing impervious surfaces, and using other natural means to capture and infiltrate rain water. Capturing the water before it can enter the combined sewer system will aid in alleviating combined sewer overflows (CSO) in the District.

Green Infrastructure Phase II Awards:
In March 2015 DC Water awarded contracts for final design to two selected firms: CH2M for the design of the Kansas Avenue Green Infrastructure Parks Project and Nitsch Engineering for the design of the Kennedy Street Green Infrastructure Streetscape Project. Concept plans were selected for final design award by a multi-agency evaluation panel for demonstrating innovative, cost effective, constructible, and replicable solutions to alleviating CSOs.

Kennedy Street Green Infrastructure Streetscape Project
     Kennedy Street Green Infrastructure Streetscape Project Concept Design
Selected Firm: Nitsch Engineering
Participating Team Members: Nitsch Engineering, Urban Rain Design, Stacy Levy, Warner Larson Inc., EBA Engineering Inc., McKissack & McKissack, Tina Boyd & Associates
Location: 100 Block of Kennedy Street NW
Kansas Avenue Green Infrastructure Parks Project
     Kansas Avenue and 2nd Street NW Green Infrastructure Park Project Concept Design
     Kansas Avenue and 3rd Street NW Green Infrastructure Park Project Concept Design
Selected Firm: CH2M
Participating Team Members: CH2M, Sigma Associates, Nspiregreen, CCJN, E2CR Inc.
Location: Kansas Avenue NW & 2nd Street NW, and Kansas Avenue NW and 3rd Street NW

DC Water is awarding over $1 million for design and construction of these Green Infrastructure Challenge projects in the Rock Creek drainage area in the District of Columbia. The Kennedy Street Green Infrastructure Streetscape Project is anticipated to be constructed in coordination with DDOT's streetscape improvement work during Spring/Summer 2016. The Kansas Avenue Parks Project is anticipated to be constructed in 2017 pending final approval of DC Water's recommended modification of the consent decree to include Green Infrastructure as a method for controlling CSOs.

The Challenge will serve as a model to support DC Water's plan to implement Green Infrastructure in place of or in conjunction with "gray" engineering solutions, to capture rain water and prevent CSOs. More information on DC Water's Green Infrastructure initiatives can be found at


Green Infrastructure Challenge Phase I

Green Infrastructure Phase I Winners:
At the award ceremony on January 9, 2014 DC Water announced the winning submissions for phase I of the challenge.

  • 21st Century Stormwater Management in a 19th Century Neighborhood
    Submitted by Team AECOM
    Participating Firms: AECOM, KPG Design Studio, GeoConcepts Engineering, Prime Engineering, CDDI
    Design Board    | Video

  • Greening the District's Geometry: Enhancing L'Enfant's Plan
    Submitted by Team CH2M HILL
    Design Board    | Video

  • Kennedy I Greened: A Neighborhood Green Street Project
    Submitted by Team Urban Rain Design | Nitsch Engineering | Stacy Levy Artist | Raymond Papa
    Design Board    | Video

  • Lamont Park: Integrating Green Infrastructure and Bike Infrastructure
    Submitted by Team Tetra Tech
    Participating Firms: Tetra Tech, Toole Design Group, Hazen and Sawyer
    Design Board    | Video

  • A Stormwater Park System
    Submitted by Team Bradley Site Design - Greening Urban
    Design Board    | Video

  • Symbiotic Streetscapes
    Submitted by Team McKissack
    Participating Firms: McKissack and McKissack, Bradley Site Design, Greening Urban
    Design Board    | Video

  • Utilizing Lost Urban Space
    Submitted by Team ARCADIS
    Participating Firms: ARCADIS, RTKL, Biohabitats, EQR, Delon Hampton & Associates, Nspiregreen,    Robinson and Associates, Geoconcepts Engineering
    Design Board    | Video

How To Reach Us

Green Infrastructure Challenge Project Manager: Seth Charde (202) 787-4730
DC Clean Rivers Community Outreach: (202) 787-4723
DC Water 24-hr Emergency: (202) 612-3400
DC Water Office of External Affairs: (202) 787-2200

Comments and Questions

If you have comments or questions regarding the Green Infrastructure Challenge, email:

Project Documents

Award Ceremony January 9, 2014
Presentation (PDF 1.1 mb)

Green Infrastructure Challenge Briefing Document
Briefing Document (PDF 6.6 mb)

Addendum No. 1 - July 12, 2013
Addendum No. 1 (PDF 3.2 mb)
Existing Conditions Information For Kennedy St NW (CAD/DWG)
Existing Conditions Information For Prospect St NW (CAD/DWG)

Addendum No. 2 - July 19, 2013
Addendum No. 2 (PDF 35 kb)

Addendum No. 3 - August 9, 2013
Addendum No. 3 (PDF 21 kb)

Addendum No. 4 - August 16, 2013
Addendum No. 4 (PDF 22 kb)

Addendum No. 5 - September 6, 2013
Addendum No. 5 (PDF 23 kb)

Addendum No. 6 - September 20, 2013
Addendum No. 6 (PDF 23 kb)