Information for Strong-Motion Station
Ridgecrest - Hwy 395/Brown Road Bridge
CGS - CSMIP Station 33742
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 35.6696 N
Longitude 117.8187 W
Elevation (m) 729
Site Geology  
Vs30 (m/sec)  
Site Class  
No. of Spans4
Plan ShapeStraight with skew.
Total Length282' (86.0m). Bridge spans range from 54' (16.5m) to 83' (25.3m).
Width of Deck42' (12.8m)
Construction Date1966
Instrumentation1996. 6 accelerometers on the bridge. 3 accelerometers at a free-field site.
Superstructure TypeContinuous concrete box girder. Diaphragm abutments.
Substructure TypeCircular concrete columns. 2 columns per bent.
Foundation TypeCIDH concrete piles support all columns and abutments.
RemarksThis bridge was instrumented under the interagency agreement between Caltrans and DOC.