[Supplemental]_CAD_files_-_For_Bidding_purposes_only,_not_for_construction.zip

This is a supplemental CAD files package for bidding purposes related to a Washington County, Oregon roadway construction project. The project, designated 100315, involves the widening and construction of a 5-lane section on NW Walker Road between NW 185th Avenue and NW 173rd Avenue. The scope of work includes construction of curbs, sidewalks, and illumination; intersection widening and improvements; retaining walls and sound walls; a piped stormwater conveyance system with water quality treatment and detention; signing and striping installation; illumination and traffic signal construction; waterline installation; and additional incidental work as specified. The CAD files provided are for bidding purposes only and are not to be used for construction.

The project cost is estimated between $10,000,000 and $30,000,000. The supplemental CAD files serve as technical reference documents to support bidders in preparing accurate proposals. These files are essential for contractors to understand the project's design requirements, site conditions, and engineering specifications necessary for developing competitive bids.