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Figure 0.1 · BRIEFING
BID #009775 · WSDOTRESULT · awarded Aug 23

SR 520, I-5 to Montlake - I/C and Bridge Replacement

King County

Bid dateWednesday, August 23
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Project details

Description
This project will replace the existing Portage Bay Bridge 520/3, with two new parallel variable depth segmental box girder bridges across Portage Bay, the existing SR 520 eastbound off-ramp structure to Montlake Boulevard East, the existing 10th Ave E and Delmar E under-crossings with a new…

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 →