Ben C. Gerwick Co.

Astoria-Megler Bridge (Clatsop County, Oregon)
Contractor - Desdemona Sands Viaduct Portion, 1966
Continuous rigid-cantilever Warren through truss bridge over Columbia River on US 101 in Astoria
Open to traffic

CFNR - Brazos Drawbridge (1979) (Napa County, California)
Built 1979
Bridge over Napa River on California Northern Railroad (CFNR)
Bridge is open to rail traffic with ongoing repairs

Richmond-San Rafael Bridge (Contra Costa County, California)
Substructure Joint Venture, 1956
Double deck cantilever truss bridge over San Pablo Bay on I-580 in Richmond
Open to traffic

UP - Inner Harbor Bridge (Alameda County, California)
Built 1951
Vertical lift bridge over Oakland Estuary on Alameda Belt Line/Union Pacific
Intact but closed to all traffic