CESMD |
Information for Strong-Motion Station |
Santa Barbara - San Roque Canyon Bridge |
CGS - CSMIP Station 25749 |
Earthquakes recorded by this station |
Latitude | 34.4497 N |
Longitude | 119.7350 W |
Elevation (m) | 96 |
Site Geology | Alluvium over soft rock (shale) |
Vs30 (m/sec) | 467 (inferred) |
Site Class | C |
Remarks/Notes | Site information sources |
No. of Spans | 3 |
Plan Shape | Straight. |
Total Length | 488' (148.7m). Bridge spans are 144' (43.9m), 144' (43.9m), and 200' (61.0m). |
Width of Deck | 46' (14.0m) |
Construction Date | 1984 |
Instrumentation | 1996. 6 accelerometers on the bridge. 3 accelerometers at a free-field site. |
Superstructure Type | Continuous concrete box girder. Open end seat abutments with elastomeric bearings and shear keys at the abutments. |
Substructure Type | Hexagonal concrete piers with flares in the upper portion. 1 column per bent. |
Foundation Type | Spread footings support abutments and piers. |
Remarks | This bridge was instrumented under the interagency agreement between Caltrans and DOC. |