CESMD

Information for Strong-Motion Station

Hayward - Hwy 580/238 Interchange Bridge

CGS - CSMIP Station 58658

Earthquakes recorded by this station

 

(Station Photograph - click to enlarge)	(Sensor Layout - click to see PDF File)

   

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.