Figure 0.1 · BRIEFING
BID #9133 · WSDOTRESULT · awarded Apr 3

I-5, Steilacoom-DuPont Rd. to Thorne Lane Corridor Improvements

Pierce County

Bid dateTuesday, April 3—
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Project details

Description
This project will widen 4.9 miles of I-5 between the interchanges with Steilacoom-DuPont Road (Exit 119) and Gravelly Lake Drive (Exit 124.) This portion of I-5 passes through Joint Base Lewis McChord (JBLM), between the cities of DuPont and Lakewood. The project will include the following:…

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 →