CESMD
Information for Strong-Motion Station
Capistrano Beach - I5/Via Calif. Bridge
CGS - CSMIP Station 13795
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 33.4659 N
Longitude 117.6674 W
Elevation (m) 55
Site Geology Alluvium
Vs30 (m/sec) 385 (inferred)
Site Class C
Remarks/Notes Site information sources
 
No. of Spans6
Plan ShapeStraight.
Total Length441' (134.4m). Bridge spans range from 50' (15.2m) to 97' (29.6m).
Width of Deck52' (15.8m)
Construction Date1960
Instrumentation1999. 9 accelerometers on the bridge. 3 accelerometers at a free-field site.
 
Superstructure Type6-cell concrete box girder. Cantilever abutments.
Substructure TypeReinforced concrete columns. 2 columns per bent.
Foundation TypeSpread footings.
RemarksThis bridge was instrumented under an interagency agreement between Caltrans and DOC. The bridge was retrofitted in 1996