CESMD

Information for Strong-Motion Station

Big Sur - Hwy 1/Pfeiffer Canyon Bridge [Demolished]

CGS - CSMIP Station 47729

Earthquakes recorded by this station

 

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

   

Latitude	36.2391 N
Longitude	121.7747 W
Elevation (m)	176
Site Geology	Alluvium
Vs30 (m/sec)	664 (inferred)
Site Class	C
Remarks/Notes	Site information sources

 

No. of Spans	3
Plan Shape	Curved.
Total Length	316' (96.3m). Bridge spans are 98.25' (29.9m), 120' (36.6m), and 98.25' (29.9m).
Width of Deck	34' (10.4m)
Construction Date	1968
Instrumentation	1996. 15 accelerometers on the bridge. 3 accelerometers at a free-field site.

 

Superstructure Type	3-cell concrete box girder. Seat abutments with rocker bearings.
Substructure Type	Circular (6' diameter) reinforced concrete column at each pier.
Foundation Type	Concrete pile shafts support the piers. Spread footings support the abutments.
Remarks	This bridge was instrumented under an interagency agreement between Caltrans and DOC.