Stimulus Funds: Clean Water Act Projects

Clean Water Act (CWA) passed by Congress in 1972, is to restore and maintain the chemical, physical, and biological integrity of the nation's waters by preventing point and nonpoint pollution sources, providing assistance to publicly owned treatment works for the improvement of wastewater treatment, and maintaining the integrity of wetlands.

Additional Tide Gate Improvements

The Additional Tide Gate Improvements project will prevent leakage of existing timber gates at five different CSO outfalls in Washington, D.C in the future. Currently, the tide gates allow for a minimal amount of river water to enter the collection system which eventually is conveyed to Blue Plains Advanced Wastewater Treatment Plant. Improvements are required to enhance the performance of the existing infrastructure, which is significantly impacted by the river water.

Watts Branch Sewer Rehabilitation

This project is designed to rehabilitate and relocate DC Water sewer system infrastructure in and along Watts Branch, a tributary of the Anacostia River in the Northeast quadrant of Washington, D.C. This sewer rehabilitation project will be scheduled in conjunction with the District Department of the Environment (DDOE) and U.S. Fish and Wildlife Service (USFWS) plans for the stream restoration of Watts Branch. Major construction work include:

Sewer Rehabilitation, Various Locations

The scope of services for this construction contract is to perform structural rehabilitation on approximately 6,200 feet of the DC Water combined sewer and sanitary sewer systems. This project will rehabilitate observed structural defects and restore the structural integrity of various sewers, while also reducing root intrusion and infiltration. The rehabilitation focuses on providing structural repair to existing sewers throughout the District that are located under buildings and other private property.

  1. Rehabilitation of approximately 700 feet of 30-inch and 1,700 feet of 36-inch sanitary sewer using Cured-In-Place Pipe Lining,
  2. Relocation of approximately 1,200 feet of 30-inch sanitary sewer to eliminate 3 crossings of Watts Branch,
  3. Relocation of approximately 700 feet of 24-inch sanitary sewer away from stream banks,
  4. Relocation of approximately 1400 feet of 27-inch sanitary sewer away from stream banks and
    5. Restoration of the project area.

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