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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| CESMD |
| Information for Strong-Motion Station |
| Hayward - Hwy 580/238 Interchange Bridge |
| CGS - CSMIP Station 58658 |
| Earthquakes recorded by this station |
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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| Latitude | 37.6907 N |
| Longitude | 122.099 W |
| Elevation (m) | 49 |
| Site Geology | Thin alluv over hard rock (gabbro/serp) |
| Vs30 (m/sec) | -- |
| Site Class | - |
| No. of Spans | 14 |
| Plan Shape | Curved |
| Total Length | 54' (16.5m) |
| Width of Deck | 54' (16.5m) |
| Construction Date | 1988 |
| Instrumentation | 1993 (7 accelerometers on the bridge and 3 accelerometers at a free-field site); The bridge was reinstrumented in 2011 with 20 accelermeters. |
| Superstructure Type | Concrete box girders. |
| Substructure Type | Octagonal concrete columns. 1 to 3 columns per bent. |
| Foundation Type | Bents are supported by concrete CIDH piles or spread footings. Abutments are supported by concrete CIDH piles or steel piles. |
| Remarks | This bridge was instrumented under the interagency agreement between Caltrans and DOC. |