Project_Manual_Vol._3_(PW#_2025-066).pdf

This is a Project Manual for the City of Seattle's Sewer MA Lining Contract 1 (PW# 2025-066), a significant infrastructure rehabilitation project managed by the City of Seattle Department of Transportation. The project will rehabilitate approximately 64,000 lineal feet of existing sanitary sewer, combined sewer, and storm pipes using Cured-in-Place Pipe (CIPP) installation methods, including fiberglass lining with ultraviolet light curing and felt lining with steam or water thermal curing. The work encompasses 263 pipe segments ranging from 6 to 27 inches in diameter located at various sites throughout Seattle. Project scope includes traffic control, bypass pumping, cleaning, pre-construction and post-construction closed circuit television (CCTV) video inspection, debris removal, removal of intruding lateral piping and obstructions, installation of pre-liners, CIPP liner installation and molding, and reinstatement of laterals. The project is subject to the City of Seattle's Community Workforce Agreement and Priority Hire requirements under Seattle Municipal Code 20.37, which mandate workforce participation from economically distressed communities, women, and people of color.

The Engineer's Estimate for this project is $10,130,000.00. This is a Covered Project requiring compliance with the City of Seattle's Community Workforce Agreement and Priority Hire program, which provides access to skilled workers from historically underrepresented populations while supporting the city's racial and economic equity initiatives. Contractors must demonstrate capacity to meet workforce diversity requirements and comply with prevailing wage standards applicable to public works projects in Seattle.