Ghirardelli Associates Construction Engineer provided to WHO was responsible for inspection and engineering office on This $ 90 million dollar project. Constructed in 1962, the Benicia-Martinez Bridge Carries Route 680 traffic over the Carquinez Strait Between the cities of Benicia in Solano County and Martinez in Contra Costa County. Currently, over 90,000 vehicles cross the bridge each day. The retrofit program included Replacing Existing steel bearings With the isolation bearings, adding a new outer tapered concrete jacket to MOST of the piers and adding additional caissons with tie down anchors. Other work was done to Strengthen the approach columns and widen the column footings, place larger expansion joints at the abutments and Strengthen the steel members Which Comprise the truss structure.
Services Provided: Engineering Inspection and Office