Project Manual Vol. 6 Summary

This is a project manual for the City of Seattle's Sewer MA Lining Contract 1 (PW# 2025-066), a municipal sewerage rehabilitation project managed by the City of Seattle. The project employs Cured-in-place pipe (CIPP) installation methods to rehabilitate approximately 64,000 lineal feet of existing sanitary sewer, combined sewer, and storm pipes across 263 pipe segments at various locations throughout Seattle. The mainline pipes range from 6 inches to 27 inches in diameter. Work elements include traffic control, bypass pumping, cleaning, pre-construction closed circuit television (CCTV) video inspection, debris and obstruction removal, lateral piping removal, pre-liner installation, CIPP liner installation and molding, lateral reinstatement, and post-construction CCTV inspection. Two lining technologies will be utilized: fiberglass lining with ultraviolet light curing and felt lining with steam or water thermal curing. The project is subject to the City of Seattle's Community Workforce Agreement (CWA) and Priority Hire provisions under SMC 20.37, which prioritize hiring from economically distressed communities, women, and people of color.

The Engineer's Estimate for this project is $10,130,000.00. As a Covered Project under the City of Seattle's equity-focused contracting programs, this work supports the city's commitment to racial and economic equity by providing skilled employment opportunities to underrepresented populations while giving contractors access to these trained workers. The specific response dates, due dates, bidders' conferences, and award dates are contained within the project manual documentation. Contract performance requirements and detailed specifications are outlined in the manual to ensure compliance with all applicable city standards and regulations.