This contract is a design‑build municipal wastewater collection system improvement project for the City of Yakima, WA. Competitive bids were opened on 13 Nov 2017, and the City Manager’s recommendation awarded the work to DW Excavating, Inc. The scope covers mobilization, traffic control, clearing and grubbing, extensive excavation, installation of various PVC pipe sizes, construction of multiple manhole types, back‑fill, sanitary sewer bypass, landscape restoration, concrete curb & gutter, sidewalks, and pavement markings across the Yakima service area. The estimated bid values range from roughly $418 k to $610 k, with the recommended contractor likely near the low‑end of that range.
• Primary work: underground wastewater pipe and manhole construction (design‑build).
• Key materials: PVC pipe (12‑, 10‑, 8‑, 4‑in., C900 12‑in.), concrete structures, asphalt surfacing.
• Project scale: medium‑size municipal utility upgrade (~$400‑$600 k), single‑award competitive procurement.