Superstructure Type | Dual orthotropic steel box girders, connected by steel cross beams, suspended from cables which are supported on the 160m steel tower. The cable is anchored at Pier E2 and looped around Pier W2 through saddles. Gap between the tower and the box girder decks. |
Substructure Type | Tower: 4 steel shafts interconnected with steel shear links and rigidly connected at the saddle. W2: concrete cap beam supported on concrete columns with tie-down to the foundation. E2: concrete cap beam supported on two concrete columns & connected to box girders with 4 shear keys and 4 bearings. |
Foundation Type | Tower: Pile cap supported by thirteen 70m long, 2.5m diameter cast-in-steel-shell (CISS) concrete piles embedded into rock. Pier E2: (16) 100m CISS piles at each column. Pier W2: concrete mats. |
Remarks | The new Eeast Span opened to traffic on September 2, 2013. This bridge was instrumented during construction under the interagency agreement between Caltrans and DOC. |