Jefferson Relief 09 09 2024.pdf

The document appears to be related to the Jefferson Relief Sewer project, a municipal infrastructure initiative for Wayne County, Michigan. The project involves constructing a 25-foot deep, 7,100-foot long, 60-inch diameter relief sewer that will be tunneled under the southbound lane of Jefferson Avenue, with limited open-cut construction for structures, utility relocation, and sewer connections. The comprehensive scope includes installing 80 feet of 48" sanitary sewer, 6,900 feet of 60" sanitary sewer via tunneling, 175 feet of 60" sanitary sewer through open cut methods, 8 tunnel launching/receiving shafts, 5 sanitary chambers, 7 lateral sewer connections, 450 feet of 12", 15", and 18" sewers, and Martin Regulator improvements. The project will run parallel to the existing Jefferson Interceptor Sewer and include maintenance of traffic during construction.

The project will require significant underground infrastructure work, with precise engineering specifications and multiple construction techniques. Specific structural elements include new sewer installations at key intersections such as 9 Mile Road and Bon Heur Street, connecting to existing upstream and downstream sewer systems. While detailed pricing information is not provided in the document, the project represents a substantial municipal infrastructure investment aimed at improving sewer capacity and system reliability. The tunneling and open-cut methods suggest a complex engineering approach designed to minimize surface disruption while achieving comprehensive sewer system upgrades.