CESMD
Information for Strong-Motion Station
Santa Barbara - Gilbraltar Dam
CGS - CSMIP Station 25255
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 34.5269 N
Longitude 119.6872 W
Elevation (m) 421
Site Geology  
Vs30 (m/sec)  
Site Class  
 
Dam Height195' (59.4m)
Plan ShapeSingle arch
Crest Length550' (167.6m)
Crest Width7' (2.1m)
Construction Date1920
Instrumentation1991, 13 accelerometers, on crest, toe and abutment plus free field
 
Superstructure Type--
Dam TypeConcrete arch dam
Foundation Type--
RemarksThe dam was strengthened in 1990/91 by adding a roller-compacted concrete (RCC) buttress at the downstream side. The repair scheme was developed by Woodward-Clyde Consultants in 1983.