CESMD |
Information for Strong-Motion Station |
Hayward - Hwy 580/238 Interchange Bridge |
CGS - CSMIP Station 58658 |
Earthquakes recorded by this station |
Latitude | 37.6907 N |
Longitude | 122.0993 W |
Elevation (m) | 49 |
Site Geology | |
Vs30 (m/sec) | |
Site Class |
No. of Spans | 14 |
Plan Shape | Curved |
Total Length | 2030' (618.7m). Bridge spans range from 92' (28.0m) to 197' (60.0m) long. |
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. |