INTERSTATE 680
INTERSTATE 680 in 04-Ala-680-R20.39, Alameda County, California received a condition grade of B (65/100). Built in 1965, the bridge carries 165K vehicles daily on INTERSTATE 680 over Dublin BLVD.
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 680 is a 61-year-old bridge located 04-Ala-680-R20.39 in Alameda County, California. The bridge carries INTERSTATE 680 over Dublin BLVD with 12 traffic lanes, handling approximately 165K vehicles per day. Built in 1965 and reconstructed in 2001, the structure spans 48.2 meters.
The bridge received a Condition Grade of B (65/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
INTERSTATE 680 has a Condition Score of 65/100 (Grade B). Its deck is rated 5/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 680 was built in 1965 and reconstructed in 2001, making it 61 years old. The average bridge age in the United States is 48 years.
INTERSTATE 680 carries approximately 165K vehicles per day (average daily traffic). The bridge has 12 traffic lanes. It is 48.2 meters long and located on INTERSTATE 680 in 04-Ala-680-R20.39, Alameda County, California.
No, INTERSTATE 680 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 680 is located 04-Ala-680-R20.39 in Alameda County, California. The bridge carries INTERSTATE 680 over Dublin BLVD. Its coordinates are 37.705425, -121.924728. It is maintained by State Highway Agency.
INTERSTATE 680 carries INTERSTATE 680 over Dublin BLVD. The bridge is 48.2 meters long and was built in 1965, with reconstruction in 2001.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.