2020-1 SWM Culvert Replacement Projects

This contract covers the design‑build replacement of multiple storm‑water management culverts across four right‑of‑way parcels (RR48653, RR48906, RR48912, RR48913) in Snohomish County, WA. The scope includes full site preparation, excavation, installation of precast reinforced‑concrete split‑box culverts, placement of corrugated polyethylene storm‑sewer pipe, grading, gravel and ballast supply, hot‑mix asphalt surfacing, extensive erosion‑control measures, and temporary traffic‑control provisions. The winning bid (Redtail, LLC) was $861,233, roughly 19 % under the engineer’s estimate of $862,000, and the solicitation required a 5 % bid bond, compliance certifications, and a recycled‑material percentage proposal. The county encouraged participation from minority‑, women‑, veteran‑, and disadvantaged‑business enterprises but did not designate a formal set‑aside.<BR><BR> • Scope: culvert replacement, earthwork, pipe installation, paving, erosion control, and temporary traffic management.<BR> • Awarded to: Redtail, LLC (single‑award, lump‑sum contract).<BR> • Procurement: full open competition, award date 5 May 2020, bid due 14 Apr 2020.<BR> • Estimated contract value: approximately $861,000.