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Potomac River Tunnel Project

Sector: Water Supply and Storage • Location: Washington, Washington, D.C., United States

Source: DC Water

Project
Under Construction

The Potomac River Tunnel Project is part of DC Water's Clean Rivers initiative aimed at reducing combined sewer overflows (CSOs) into the Potomac River. The project involves constructing a large-diameter deep sewer tunnel and associated facilities to convey flow from CSO 028 to the Blue Plains Advanced Wastewater Treatment Plant, significantly improving water quality in the region.

Status
Under Construction
Sector
Water Supply and Storage, Tunnel, Waste Processing and Treatment
Location
Washington, Washington, D.C., United States of America
Updated
22 Jul 2026
Source
DC Water

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Project Information

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The project “Potomac River Tunnel Project” is an infrastructure initiative in the Water Supply and Storage sector, located in Washington, Washington, D.C., United States. Taiyo aggregates data on it from DC Water.

Participants

Not available for this record.

Status

Original status

Under Construction

Taiyo status

Under Construction

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The Potomac River Tunnel Project is part of DC Water's Clean Rivers initiative aimed at reducing combined sewer overflows (CSOs) into the Potomac River. The project involves constructing a large-diameter deep sewer tunnel and associated facilities to convey flow from CSO 028 to the Blue Plains Advanced Wastewater Treatment Plant, significantly improving water quality in the region.

Original sector

Water Management

Location

Country

United States of America (USA)

State

Washington, D.C.

City

Washington

Source

Source

DC Water

URL

More Details

Record type

Project

Sector

Water Supply and Storage, Tunnel, Waste Processing and Treatment

Article published date

2025-03-10

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