Superstructure Type | Concrete slabs on prestressed concrete girders. |
Substructure Type | Concrete column towers and piers. 2 or 3 columns per pier; 4 columns per tower. Seismic strengthening includes column retrofit (full-height steel shell), cap and diaphragm retrofit, and foundation retrofit. |
Foundation Type | Abutment 1 through Pier 23 on concrete piles. Pier 24 through Abutment 26 on spread footings. |
Remarks | This bridge was instrumented under the interagency agreement between Caltrans and DOC. The bridge was retrofit in 1984, 1990, and 1997. |