4-CPN 103497-2 Marine Creek Sanitary Sewer Parallel Interceptor M-279 M-245B - Part 2 - Bidding Project Manual.pdf

This is a Bidding Project Manual for a state and local contract opportunity in Texas involving sanitary sewer and water infrastructure improvements. The project, designated as PW-103497-2 Marine Creek Sanitary Sewer Parallel Interceptor M-279 & M-245B Part II, encompasses two primary units. Unit I includes installation of approximately 3,960 linear feet of 48-inch to 72-inch sanitary sewer pipe via open cut; 570 linear feet of 72-inch sanitary sewer pipe using open-shield pipejacking within 90-inch steel casing; 2,430 linear feet of 48-inch to 72-inch sanitary sewer pipe using trenchless methods within 60-inch to 100-inch steel casing or tunnel liner plate; 1,470 linear feet of 6-inch to 18-inch sanitary sewer pipe by open cut; bypass pumping of existing sanitary sewer lines; construction of two sanitary sewer siphon structures; and construction of two sanitary sewer junction structures. Unit II includes installation of approximately 2,200 linear feet of 36-inch water pipe via open cut; 280 linear feet of 36-inch water pipe using trenchless methods with 48-inch steel casing or 50-inch tunnel liner plate; 425 linear feet of 24-inch AWWA C200 steel water pipe on an existing bridge; 4,330 linear feet of 6-inch to 12-inch water pipe by open cut; and cathodic protection of 24-inch to 36-inch water pipe with all associated appurtenances and required testing throughout both units.

The manual serves as the comprehensive bidding document containing project specifications, requirements, and procedural guidelines for interested contractors. All work requires associated appurtenances installation and testing procedures. The document establishes the framework for competitive bidding and contractor selection for this significant infrastructure project involving both sanitary sewer and potable water system improvements in the Marine Creek area.