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WSDOT: Hansen Road I‑90 overcrossing closed for safety after rapid deterioration; replacement favored but funding uncertain
Summary
WSDOT told Moses Lake council the Hansen Road overcrossing was closed after an inspection found chloride-driven deterioration that risks falling concrete; replacement (estimated $12–20 million, 15–24 months) is preferred but state funding is not yet secured, leaving a shorter rehab (estimated $5–10 million) as a fallback.
Chris Kiefenheim, regional administrator for the North Central Region of the Washington State Department of Transportation, told the Moses Lake City Council the Hansen Road overcrossing on Interstate 90 was closed on Jan. 17 after a Jan. 14 inspection revealed accelerating chloride-related deterioration.
Kiefenheim said the inspection found cracking that has progressed from the deck into columns and girders, creating a public‑safety concern about concrete dropping onto traffic below. "The deterioration had progressed exponentially, quicker than we were expecting," he said, and WSDOT moved inspections to every six months to monitor the structure.
Kiefenheim outlined two options: a rehabilitation to replace the bridge deck and repair columns and girder ends, which he…
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