DC Water's

Projects

Our capital improvement plan is measured in the billions. That's the level of investment required to upgrade our water and sewer systems, comply with federal mandates to reduce nutrient discharges and combined sewer overflows to local rivers, and improve the efficiency of our operations. This work is occurring across the city, and using the search filters below you can see what's happening in your neighborhood.

Click to view current and planned DCWater projects by Ward or ANC.

Bryant Street Pumping Station Improvements
Facilities
Bryant Street Pumping Station Improvements
This project will make significant HVAC system enhancements.
Anacostia 2nd High Residential Pressure Reducing Valve Installation Project
Water
Anacostia 2nd High Residential Pressure Reducing Valve Installation Project
Project will increase water pressure and increase flow from hydrants.
Green Alley Partnership
Green Infrastructure
Green Alley Partnership
One Team: Working Together, Improving the District
Sewer Rehabilitation Project - Pinehurst
Sewer
Sewer Rehabilitation Project - Pinehurst
Efforts will help eliminate the exposure of sewer assets to the stream channel.
Sewer Rehabilitation Project - Soapstone Valley Park
Sewer
Sewer Rehabilitation Project - Soapstone Valley Park
Benefits of this project include reducing stream and groundwater infiltration.
Enhanced Nitrogen Removal Facilities
Wastewater Treatment
Enhanced Nitrogen Removal Facilities
Plant now exceeds more stringent EPA requirements
Tunnel Dewatering Pump Station and Enhanced Clarification Facility
Wastewater Treatment
Tunnel Dewatering Pump Station and Enhanced Clarification Facility
Millions of gallons of combined sewage will wind up here for treatment
Filtrate Treatment Facilities
Wastewater Treatment
Filtrate Treatment Facilities
New DEMON® process will save millions in energy
Tingey Street Diversion Sewer Project
Clean Rivers
Tingey Street Diversion Sewer Project
Innovative Contracting for Clean Rivers Construction
HQO
Facilities
HQO
New Administrative Building Under Construction on SE Waterfront
CSO 019 Overflow Structure Project
Clean Rivers
CSO 019 Overflow Structure Project
Major Tunnel Relief Structure Completed
Blue Plains Tunnel Project
Clean Rivers
Blue Plains Tunnel Project
Award Winning Project Completed on Time and Under Budget
CSO 007 Diversion Sewer Project
Clean Rivers
CSO 007 Diversion Sewer Project
Communication Brings About Coordinated Project with DDOT
M Street Diversion Sewer Project
Clean Rivers
M Street Diversion Sewer Project
New System in Place Under M Street SE to Deliver Flows to Tunnel
Northeast Boundary Utility Relocations Project
Clean Rivers
Northeast Boundary Utility Relocations Project
Cleared a Path for Tunnel Construction by Relocating Utilities
Green Infrastructure Design Challenge
Green Infrastructure
Green Infrastructure Design Challenge
Over $2M GI Project Completed with District Partnership
Clean Rivers Green Infrastructure Projects at DC Water Facilities
Green Infrastructure
Clean Rivers Green Infrastructure Projects at DC Water Facilities
Using GI at Our Facilities to Learn and Minimize CSOs
Potomac River Green Infrastructure Project A
Green Infrastructure
Potomac River Green Infrastructure Project A
First GI Project in Potomac River Completed
Main Pumping Station Diversions Project
Clean Rivers
Main Pumping Station Diversions Project
New Diversion Chambers Divert Flows to Blue Plains Tunnel
Irving Street Green Infrastructure Project
Green Infrastructure
Irving Street Green Infrastructure Project
GI Working to Mitigate Flooding in Bloomingdale
About DC Water
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Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

What's Going On
Work With Us

Announcement

View of Mary at bottom of shaft inside tunnel shown from above
DC Water Launches Tunnel Boring Machine Mary, Marking Important Step for Potomac River Tunnel Project

First turn of cutterhead signals the start of excavation for the Potomac River Tunnel Project

In a defining moment for one of the District’s largest infrastructure investments, DC Water has marked its next major milestone in the Potomac River Tunnel Project. The first tunnel boring machine, Mary, has launched her northbound journey breaking through the soil to signal the start of excavation.

With the first turn of Mary’s drill-like cutterhead underground, the machine pushed forward to begin tunneling, representing the transition from years of planning and preparation to active tunnel construction on the $819 million project.

Latest Blog Post
A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
When one of your major sewer lines runs through the Potomac River, a backhoe and trencher won't do. That's why we've got helicopters carrying a 14-ton drill and workers suspended midair over the Potomac.
Upcoming Meeting
Environmental Quality and Operations Committee Meeting
Date
April 15, 2026
Wednesday, 9:30 AM
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Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 50% of the last 3 payments made. Eligible participants are residential customers who have had an outstanding balance for 60 days or greater and with an outstanding balance of $500 or more.

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Lead Pipe Replacement
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