CESMD
Information for Strong-Motion Station
Parkfield - Hwy 46/Cholame Creek Bridge
CGS - CSMIP Station 36668
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 35.7331 N
Longitude 120.2901 W
Elevation (m) 346
Site Geology  
Vs30 (m/sec)  
Site Class  
 
No. of Spans5
Plan ShapeCurved with skew.
Total Length128.5' (39.2m). Bridge spans range from 21' (6.4m) to 28' (8.5m).
Width of Deck43.5' (13.3m)
Construction Date1954
Instrumentation1993. 6 accelerometers on the bridge.
 
Superstructure TypeContinuous concrete slab on concrete pile bents.
Substructure TypeCircular and octagonal concrete piles. 4 piles per bent (after widening). Orginally, 2 piles per bent.
Foundation TypeConcrete piles.
RemarksThis bridge was instrumented under the interagency agreement between Caltrans and DOC. The bridge was widened to its current width in 1979.