Figure 0.1 · BRIEFING
BID #009935 · WSDOTRESULT · awarded Mar 1

SR 539, Duffner Ditch Fish Passage

Whatcom County

Bid dateWednesday, March 1—
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Project details

Description
Installing a box culvert, grading, stream alignment, storm sewer realignment, existing culvert slip lining, hot mix asphalt paving, pavement marking, guardrail, erosion control, planting, cable vault, fiber optic cable, fiber testing, traffic control and other work. Involves 86 items and 47 Working…

How to read this. Plan‑pull counts come straight from agency portals. Patterns and confidence scores are derived from comparable lettings (same county, same category, three‑year basis). Confidence is a calibration of past correctness on signals of this shape — not a guarantee of this bid’s outcome. We never round up. More on what Cassandri does →