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 Spans3
Plan ShapeStraight.
Total Length562' (171.3m). Bridge spans are 185' (56.4m), 192' (58.5m), and 185' (56.4m).
Width of Deck54' (16.5m)
Construction Date1989
Instrumentation1995. 5 accelerometers on the bridge. 3 accelerometers at a free-field site.
Superstructure TypeContinuous concrete box girder. Open end seat abutments with elastomeric bearings and exterior shear keys.
Substructure TypeConcrete columns with I-shaped cross-section in the upper portion and rectangular below. 1 column per bent.
Foundation TypeColumns and 1 abutments are supported by spread footings. The other abutment is supported on steel piles.
RemarksThis bridge was instrumented under the interagency agreement between Caltrans and DOC.