DC Water ProjectsProject

Potomac River Tunnel Project B (PRT-B)

todayAugust 29, 2024

Background

Potomac River Tunnel Project B (PRT-B)

Location

Washington, D.C.

Owner/Client

DC Water

JA Underground

Participation

28% Disadvantaged owned Business (DBE)

4% Woman-owned Business Enterprise (WBE)

Design

32% Disadvantaged owned Business (DBE)

6% Woman-owned Business Enterprise (WBE)

DC Water is continuing to implement its Clean Rivers Project. The Potomac River Tunnel (PRT) is the next major phase of the DC Clean Rivers Project. The project consists of a large-diameter deep sewer tunnel, diversion facilities, drop shafts, and support structures to capture flows from existing combined sewer overflows (CSOs) along the Potomac River and convey them to the Blue Plains Advanced Wastewater Treatment Plant for treatment.

The planned Potomac River Tunnel will be a Design and construct approximately 29,400 feet of 18-foot minimum inside diameter tunnel with precast concrete liner from mining site at West Potomac Park at Ohio Drive, SW.

L.S. Caldwell & Associates, Inc. (LSC) has responsibility for the development, implementation, and monitoring of the Fair Share Objective initiatives for the District of Columbia Water and Sewer Authority’s (DC Water) Clean Rivers Project. This $2.6 billion program is the result of a Consent Decree signed by the District of Columbia, the Environmental Protection Agency and the Department of Justice. DC Water was required to clean up the Anacostia and Potomac Rivers by 2025.  Seven discrete portions of the work, called Divisions, have been constructed; totaling approximately $819,368,566.00.

In addition to compliance program development, LSC’s role includes:

  • Monitoring and tracking of certified payrolls as it relates to Davis Bacon
  • Introduction of an online reporting system that tracks usage of minority-owned and women-owned businesses on the projects, as well as online collection of employment data on behalf of DC Water.
  • Outreach to protected class businesses is also fundamental to its mission, as is ensuring compliance with Davis Bacon Act requirements.
  • Monitor and tracking of the DC Water Works Employment Program

Written by: Brittany Ransom