Rock Creek Green Infrastructure Project B

Project Completion


Rock Creek GI Project B Coming Soon!

DC Water is excited to announce the next green infrastructure (GI) project in the Rock Creek sewershed, Rock Creek Project B!  DC Water is currently finalizing the design of Rock Creek Project B. Details regarding the project can be found below and in the Project Description document. The public comment period for the Project Description document closes on May 7th. Comments should be submitted to You can also learn more about this project at DC Water’s Public Meetings on April 7th and May 4th.  Click here for Zoom meeting details.

You can find the proposed GI practices and locations within the Rock Creek Project B area by clicking on the interactive map below: 


Rock Creek Project B is part of DC Water's Clean Rivers GI Projects. It is the second GI project constructed in the Rock Creek Sewershed. The first green infrastructure project, Rock Creek Project A, was completed in 2018 in the Brightwood Park and Manor Park neighborhoods. DC Water’s Clean Rivers Projects will significantly reduce the level of pollution to the District’s waterways produced by the discharge of stormwater runoff and sanitary sewer flows, known as combined sewer overflows (CSOs).

Rock Creek Project B will include the construction of alley permeable pavement and bioretention sites. These practices manage stormwater by taking advantage of the earth's natural processes, such as allowing the water to infiltrate into the soil, evaporate into the air or be used by plants which transpire it as vapor. In addition to managing stormwater, GI contributes to beautifying the streetscape and making it more welcoming for pedestrians, bicyclists and drivers.

Examples of typical Green Infrastructure Practices within the Streetscape


Activity Date
Project Description Document Available for Public Comment March 29, 2021
Rock Creek Project B Public Meeting 1  (click here for presentation) April 7, 2021
Rock Creek Project B Public Meeting 2   May 4, 2021
Public Comment Period Ends  May 7, 2021
Design & Permitting Summer/Fall 2021
Construction Begins Early 2022
Rock Creek Project B Completion January 2024


To ensure continued performance of GI and the associated reduction of combined sewer overflows, the GI facilities must be maintained regularly.  DC Water is responsible for maintenance of GI facilities. Facility IDs will be placed at each GI facility that DC Water constructs in your neighborhood and you can contact DC Water if you notice trash or other issues in the facilities.

Discover More

Click here to learn more about DC Water's green infrastructure projects.