CESMD |
Information for Strong-Motion Station |
San Diego - I5/Hwy 52 Interchange Bridge |
CGS - CSMIP Station 03731 |
Earthquakes recorded by this station |
Latitude | 32.8380 N |
Longitude | 117.2340 W |
Elevation (m) | 60 |
Site Geology | |
Vs30 (m/sec) | |
Site Class |
No. of Spans | 17 |
Plan Shape | Curved with skew. |
Total Length | 1764' (537.7m). Bridge spans range from 58' (17.7m) to 125' (38.1m). |
Width of Deck | Varies. 46' (14.0m), 34' (10.4m), 26' (7.9m) |
Construction Date | 1966 |
Instrumentation | 1995. 20 accelerometers and 1 relative displacement sensor on the bridge. 3 accelerometers at a free-field site. |
Superstructure Type | Continuous concrete box girder with 3 intermediate hinges. Abutments are open end seat-type with rocker bearings. |
Substructure Type | Circular or elliptical concrete columns with steel jackets (added during the retrofit). 1 or 2 columns per bent. |
Foundation Type | Bents are supported on CIDH concrete piles or spread footings. Abutments are supported on spread footings, CIDH piles, or steel piles. |
Remarks | This bridge was instrumented under the interagency agreement between Caltrans and DOC. The bridge was retrofitted in 1995. |