Industry Event Notification & Invitation
Potomac Interceptor Rehabilitation Master Services Agreement (MSA)
Contract No.: 260040
RFI DCW-SOL-26-10575
(Washington, DC)

Owner: DC Water

The District of Columbia Water and Sewer Authority (DC Water) is preparing to launch a new acquisition for the Potomac Interceptor (PI) under the terms of a Master Services Agreement (MSA). This initiative underscores DC Water’s commitment to delivering critical infrastructure projects through strong, collaborative partnerships with the industry.

Based on feedback from prior and ongoing market engagement, DC Water has elected to pursue an MSA for this effort with the intent to execute projects as tasks utilizing the construction management at-risk (CMAR) delivery method. This approach is intended to promote early collaboration, cost certainty, and shared accountability throughout project delivery.

DC Water welcomes and encourages all interested and qualified firms to attend the upcoming Industry Outreach Event. This session will provide an overview of the anticipated acquisition, project objectives, and procurement approach, and will offer an opportunity to ask questions and engage with the project team.

Participation in this event will help prospective bidders better understand the scope, expectations, and opportunities associated with the PI program. We look forward to connecting with industry partners and fostering early engagement to support a competitive and informed solicitation process.

The scope includes rehabilitation and construction of large-diameter sanitary sewer infrastructure, focused on interceptors and tunnels ranging from 30” to 96” in diameter. Work will require designing, setting up, and operating high-capacity bypass pumping systems (40–150 mgd) over distances exceeding one mile, supported by the construction of temporary access chambers for pumping and rehabilitation activities. Permanent concrete access chambers will also be constructed to support current work and future inspection, maintenance, and repairs. Pipeline rehabilitation may use geopolymer lining, cured-in-place pipe (CIPP), slip lining, spiral wound lining, or other appropriate large-diameter technologies, depending on pipe type and existing conditions. The scope also includes new sewer pipeline construction across the Potomac River, using open-cut or tunneling methods to create an inverted siphon. Additional work involves pipeline armoring at culvert and stream crossings, construction and removal of temporary access roads in environmentally sensitive and steep areas, and tree and vegetation removal with full restoration upon project completion. DC Water anticipates an upper program limit of $500 million.

May 12, 2026, 2:00 p.m.

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