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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| CESMD |
| Information for Strong-Motion Station |
| Santa Clara - Hwy 237/Alviso Overpass |
| CGS - CSMIP Station 57748 |
| Earthquakes recorded by this station |
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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| Latitude | 37.4176 N |
| Longitude | 121.9738 W |
| Elevation (m) | -- |
| Site Geology | Deep alluvium |
| Vs30 (m/sec) | 189 (inferred) |
| Site Class | D/E |
| Remarks/Notes | Site information sources |
| No. of Spans | 6 per bridge. |
| Plan Shape | Straight. |
| Total Length | Bridge K: 446.7' (136.2m). Bridge L: 436.3' (133.0m). Bridge spans range from 45.5' (13.9m) to 87' (26.5m) for Bridge K, and 44.3' (13.5m) to 87' (26.5m) for Bridge L. |
| Width of Deck | 27.5' (8.4m) for Bridge K. 59.5' (18.1m) for Bridge L. |
| Construction Date | 1994 |
| Instrumentation | 1995. 18 accelerometers on the bridges. 3 accelerometers at a free-field site. |
| Superstructure Type | Continuous concrete box girder without intermediate hinges. Seat abutments with elastomeric bearings. |
| Substructure Type | Rectangular concrete columns with flares in the upper portion. 1 column per bent for Bridge K. 2 columns per bent for Bridge L. |
| Foundation Type | Prestressed concrete piles. |
| Remarks | This bridge was instrumented under the interagency agreement between Caltrans and DOC. |