CESMD

Information for Strong-Motion Station

Rio Dell - Hwy 101/Eel River Bridge

CGS - CSMIP Station 89973

Earthquakes recorded by this station

Ambient Records for CE89973

 

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

   

Latitude	40.5093 N
Longitude	124.1196 W
Elevation (m)	13
Site Geology
Vs30 (m/sec)
Site Class

 

No. of Spans	8
Plan Shape	Curved.
Total Length	1643' (500.8m). Bridge spans range from 68' (20.7m) to 303.5' (92.5m).
Width of Deck	134.5' (41.0m) min.
Construction Date	1941
Instrumentation	2001. 15 accelerometers on the bridge. 3 accelerometers at a free-field site.

 

Superstructure Type	2 prestressed concrete girder spans, 2 steel truss spans, and 4 concrete box girder spans. The truss spans are supported on isolators. Seat abutments.
Substructure Type	Concrete bent shafts. 1 column per bent
Foundation Type	Spread footings.
Remarks	This bridge was instrumented under the interagency agreement between Caltrans and DOC. The bridge was modified several times (1972, 1987, and 1989).