Section_V_-_Blocking_Details.pdf

This is a standard technical details document from the Washington Suburban Sanitary Commission (WSSC) in Maryland, providing specifications for blocking and thrust support systems used in water and sewer infrastructure construction. The document, dated September 2021, serves as a reference guide for engineers and contractors working on WSSC projects and contains a table of contents listing thirteen standard detail specifications. These specifications cover thrust blocks for various pipe configurations including horizontal bends, tees, tapping sleeves, plugs, and caps; anchorage methods for vertical bends; strapping procedures for valves, fire hydrants, and mechanical couplings; and quick harnessed connection methods for different pipe materials including ductile iron, cast iron, prestressed concrete cylinder pipe, and pipe with weld-on thrust rings. The document is organized sequentially with detail numbers ranging from B/1.0 through B/3.3 to facilitate easy reference during construction and design phases.

This technical standards document does not address pricing, set-asides, contract terms, funding sources, or other commercial provisions. Instead, it functions as a technical reference manual establishing uniform construction methodologies and specifications that contractors must follow when performing work under WSSC contracts, such as the Area Water and Sewer House Connection solicitation. The specifications ensure consistency, structural integrity, and compliance with WSSC engineering standards across multiple construction projects throughout Prince George's and Montgomery Counties, Maryland.