2020-2 SWM Stormwater Projects

This contract awards Snohomish County Public Works the design‑build retrofit and low‑impact‑development upgrades for its storm‑water facilities. The scope includes site clearing, extensive earthwork, demolition of existing drainage structures, installation of new corrugated polyethylene storm‑sewer pipes (12‑, 24‑, and 36‑inch), construction of catch basins, placement of permeable ballast, crushed base and top courses, pervious concrete pavement, hot‑mix asphalt, erosion‑control measures (blankets, hydro‑seed, wood‑strand mulch), temporary traffic control, fencing, and a COVID‑19‑related force‑account line item. Bids were submitted by multiple contractors, each providing a detailed unit‑price schedule; the award was made to Seton Construction. The contract requires a 5 % bid bond, certifications of non‑collusion, wage‑payment compliance, and a recycled‑material percentage (minimum 5 %). The project’s engineer’s estimate is $1.199 million, and work may not begin before July 1 2020. • Comprehensive storm‑water retrofit and LID improvements across Snohomish County. • Required services: demolition, excavation, pipe installation, pavement, erosion control, traffic control, and COVID‑19 safety measures. • Awarded to Seton Construction; 5 % bid bond and multiple statutory certifications required.