PCCP Engineering Services

The Washington Suburban Sanitary Commission (WSSC) is soliciting sealed responses for professional engineering, inspection support, and technical services to support the organization's Prestressed Concrete Cylinder Pipe (PCCP) Management Program. WSSC is a bi-county public corporation established in 1918 that provides water supply and wastewater services to Montgomery County and Prince George's County in Maryland, serving approximately 1.8 million residents and operating approximately 5,600 miles of potable water pipelines and more than 5,400 miles of sewer pipelines.

Services will be performed on an as-needed basis to support condition assessment, inspection, evaluation, rehabilitation planning, emergency response, and long-term management of WSSC's PCCP transmission infrastructure. The work will focus on a critical component of WSSC's water transmission infrastructure consisting of more than 140 miles of large-diameter PCCP with diameters of 36 inches and greater, including both lined cylinder pipe (LCP) and embedded cylinder pipe (ECP). Engineering services procured under this contract will support WSSC in evaluating condition data, developing repair or replacement recommendations, and providing related technical and professional services. Approximately 110 miles of WSSC's large-diameter PCCP network is monitored using acoustic fiber optic (AFO) cable technology.

When PCCP exhibits elevated levels of distress, WSSC may implement corrective or mitigation measures including replacement of individual PCCP sections or use of alternative repair and reinforcement methods such as carbon fiber systems. PCCP mains are generally inspected and evaluated on a five- to seven-year cycle, with inspection priorities and annual mileage determined based on system needs and available funding.

Key dates include a pre-proposal conference on May 12, 2026 at 2:00 pm, a questions and answers deadline of May 14, 2026 at 6:00 pm, and a proposal submission deadline of June 2, 2026 at 2:00 pm. Responses must be submitted via WSSC's eProcurement Portal at https://procurement.opengov.com/portal/wsscwater. Late responses will not be accepted.