INTERSTATE 280
INTERSTATE 280 in 04-Scl-280-5.31-Sjs, Santa Clara County, California received a condition grade of B (68/100). Built in 1964, the bridge carries 203K vehicles daily on INTERSTATE 280 over San Tomas Expressway.
Component Ratings
The riding surface — evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
INTERSTATE 280 is a 62-year-old bridge located 04-Scl-280-5.31-Sjs in Santa Clara County, California. The bridge carries INTERSTATE 280 over San Tomas Expressway with 8 traffic lanes, handling approximately 203K vehicles per day. Built in 1964 and reconstructed in 1991, the structure spans 76 meters.
The bridge received a Condition Grade of B (68/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
INTERSTATE 280 has a Condition Score of 68/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 280 was built in 1964 and reconstructed in 1991, making it 62 years old. The average bridge age in the United States is 48 years.
INTERSTATE 280 carries approximately 203K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 76 meters long and located on INTERSTATE 280 in 04-Scl-280-5.31-Sjs, Santa Clara County, California.
No, INTERSTATE 280 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
INTERSTATE 280 is located 04-Scl-280-5.31-Sjs in Santa Clara County, California. The bridge carries INTERSTATE 280 over San Tomas Expressway. Its coordinates are 37.316708, -121.963558. It is maintained by State Highway Agency.
INTERSTATE 280 carries INTERSTATE 280 over San Tomas Expressway. The bridge is 76 meters long and was built in 1964, with reconstruction in 1991.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.