I-405 Overpass – Bellevue, WA
Highway Bridge Impact Evaluation
On April 2, 2011, the newly constructed NE 12th Street overpass bridge located above Interstate 405 in Bellevue, Washington was impacted. At the time of the impact, the demolition contractor was in the process of removing the existing, adjacent overpass bridge when one of the existing concrete girders, that was being removed, impacted the one of the girders of the new bridge. We were retained by Zurich-American Insurance Company to review and analyze the bridge damage, provide repair recommendations, repair methods, and estimate the repair cost. We were also asked to review the WSDOT repair documents including the drawings and cost estimate.