CESMD

Information for Strong-Motion Station

Eureka - Eureka Channel Bridge

CGS - CSMIP Station 89736

Earthquakes recorded by this station

 

(Station Photograph - click to enlarge)	(Sensor Layout - click to see PDF File)

   

Latitude	40.8090 N
Longitude	124.1547 W
Elevation (m)	--
Site Geology
Vs30 (m/sec)
Site Class

 

No. of Spans	15
Plan Shape	Straight and curved.
Total Length	1816' (553.5m). Bridge spans range from 81' (24.7m) to 190' (57.9m) long.
Width of Deck	34' (10.4m)
Construction Date	1971
Instrumentation	1996. 9 accelerometers on the bridge. 3 accelerometers at a free-field site.

 

Superstructure Type	Continuous concrete box girders in spans 1,2, and 3. Prestressed concrete I-girders joined together with concrete diaphragms in other spans. Seat abutments with elastomeric bearings.
Substructure Type	Hexagonal concrete columns. 1 column per bent.
Foundation Type	Concrete piles.
Remarks	This bridge was instrumented under the interagency agreement between Caltrans and DOC.