100315_13_Walker_Phase_3_Bid_Set.pdf

This is a bid set document for Washington County, Oregon, related to Project 100315 for NW Walker Road improvements between NW 185th Avenue and NW 173rd Avenue. The project scope includes constructing a 5-lane roadway section with curbs, sidewalks, and illumination; widening intersections and implementing intersection improvements; constructing retaining walls and sound walls; installing a piped stormwater conveyance system with water quality treatment and detention facilities; installing signing and striping; constructing illumination and traffic signals; constructing a waterline; and performing additional and incidental work as specified in the project plans and specifications. The project is estimated to cost between $10,000,000 and $30,000,000 and represents a significant infrastructure improvement for the roadway corridor in Washington County.

The bid set document serves as the technical foundation for contractors to prepare competitive proposals for this roadway construction and infrastructure project. Bidders would utilize the plans, specifications, and bid documents contained in this set to develop accurate cost estimates and project schedules. The document establishes the technical requirements and contract terms that successful bidders must meet, including all design specifications for the roadway widening, drainage systems, utilities, traffic control features, and ancillary improvements. As a publicly funded infrastructure project in Oregon, this work would be subject to prevailing wage requirements and other applicable state and local regulations for public works projects.