CESMD
Information for Strong-Motion Station
Richmond - San Rafael Bridge
CGS - CSMIP Station 58258
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 37.9344 N
Longitude 122.4346 W
Elevation (m) --
Site Geology  
Vs30 (m/sec)  
Site Class  
 
No. of Spans79
Plan Shapealmost straight.
Total Length21,335' (4.04 miles). Bridge spans range from 100' to 1070'.
Width of Deck42'
Construction Date1950, 2005 (retrofit)
Instrumentation81 accelerometers and 4 relative displacement sensors on the bridge.
 
Superstructure TypeLightweight concrete deck supported on steel floor beams and steel girders. The superstructure includes 1 trestle, 3 plate-girder, 5 truss and 2 cantilevel spans.
Substructure Type2-column concrete piers; 4 columns at anchor piers. Steel towers strengthened by eccentrically braced steel frames.
Foundation TypeConcrete piles. Some footings retrofitted with CISS piles.
RemarksThis bridge was extensively instrumented in 2005 during retrofit work, under the interagency agreement between Caltrans and DOC.