CESMD
Information for Strong-Motion Station
Watsonville - Hwy1/Struve Slough Bridge
CGS - CSMIP Station 47707
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 36.9067 N
Longitude 121.7818 W
Elevation (m) 2
Site Geology  
Vs30 (m/sec)  
Site Class  
 
No. of Spans22 (Left Bridge), 23 (Right Bridge).
Plan ShapeStraight with skew.
Total Length796' (242.6m) Left Bridge. 833' (253.9m) Right Bridge. Bridge spans are 37' (11.3m) and 28' (8.5m) between bent and abutment.
Width of Deck42.5' (13.0m) each bridge.
Construction Date1990
Instrumentation1994. 6 accelerometers on the bridge. 3 accelerometers at a free-field site.
 
Superstructure TypeContinuous concrete slabs without intermediate hinges. Expansion joints at each abutment. Open end seat abutments.
Substructure TypeCast-in-steel-shell concrete piles. Each bent consists of 4 pile extensions.
Foundation TypeCast-in-steel-shell concrete piles.
RemarksThis bridge was instrumented under the interagency agreement between Caltrans and DOC.