Superstructure Type | Main span is a steel truss structure typically consisting of built-up steel welded box members with perforated plates on two sides. Connections are high-strength bolted. Abutment 1 is a seat abutment. |
Substructure Type | Steel truss towers. |
Foundation Type | Abutment 1 is supported on a spread footing. Piers 2 and 3 are supported on concrete caissons. Pier 4 is supported on steel H-piles. Pier 5 is supported on a hollow concrete shaft. |
Remarks | This bridge was extensively instrumented under the interagency agreement between Caltrans and DOC during the retrofit work in 2001. |