Previous Project                 Next Project

National City Boulevard Bridge

Dokken Engineering prepared the Plans, Specifications, and Estimate(PS&E) and provided construction management and inspection services for the replacement of the existing National City Boulevard Bridge at the Old Sweetwater River Channel. The original bridge, carrying over 21,000 vehicles per day, was a wooden multi-span structure supported on timber pile bents that had been damaged by fire.

The replacement structure spans a creek that carries overflow water from the Sweetwater Channel, in addition to storm water runoff and year round ocean tidal flow. The bridge had suffered serious fire damage and was replaced using the federally funded HBRR program with Caltrans oversight.

The replacement structure is a four-span pre-stressed concrete box girder bridge. The new 375 feet long and 80 feet wide bridge was built in two stages to maintain traffic on National City Boulevard during construction. The project also required the reconstruction of the approaches to adjacent intersections. On-site salt-marsh mitigation plans and specifications were included with the project.