CESMD

Information for Strong-Motion Station

Truckee - I80/Truckee River Bridge

CGS - CSMIP Station 76741

Earthquakes recorded by this station

 

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

   

Latitude	39.3680 N
Longitude	120.1151 W
Elevation (m)	1696
Site Geology	N.Abut: Fill; FF: Rock
Vs30 (m/sec)	469 (inferred)
Site Class	C
Remarks/Notes	Site information sources

 

No. of Spans	3
Plan Shape	Straight.
Total Length	562' (171.3m). Bridge spans are 185' (56.4m), 192' (58.5m), and 185' (56.4m).
Width of Deck	54' (16.5m)
Construction Date	1989
Instrumentation	1995. 5 accelerometers on the bridge. 3 accelerometers at a free-field site.

 

Superstructure Type	Continuous concrete box girder. Open end seat abutments with elastomeric bearings and exterior shear keys.
Substructure Type	Concrete columns with I-shaped cross-section in the upper portion and rectangular below. 1 column per bent.
Foundation Type	Columns and 1 abutments are supported by spread footings. The other abutment is supported on steel piles.
Remarks	This bridge was instrumented under the interagency agreement between Caltrans and DOC.