102_ATS_-_TM_-_Condition_Assessment_040219.pdf

This is a Condition Assessment document for the Washington Suburban Sanitary Commission (WSSC Water) related to the 102-Inch Anacostia Trunk Sewer (ATS) Rehabilitation Phase 2 project located in Lower Anacostia, Prince George's County, Maryland. The document provides a comprehensive evaluation of the existing condition of the 102-inch diameter trunk sewer infrastructure, serving as the technical foundation for the Progressive Design-Build (PDB) procurement. The condition assessment details the current state of the sewer system, including structural integrity, operational performance, and identified deficiencies that necessitate rehabilitation. This assessment is critical to establishing baseline conditions and informing the design and construction scope for qualified respondents submitting proposals by the June 23, 2026 deadline at 2:00 pm via WSSC's eProcurement Portal.

The condition assessment findings will directly influence the technical requirements, cost estimates, and construction methodologies that design-build teams must address in their proposals. The document serves as supporting documentation that enables potential respondents to understand the existing infrastructure challenges, including any structural degradation, capacity limitations, or operational issues that must be resolved during Phase 2 rehabilitation. By providing this detailed condition assessment, WSSC Water establishes transparent project parameters that facilitate accurate proposals and risk allocation between the Commission and the selected design-build team for this significant wastewater infrastructure improvement project.