N680-E580 CONN
N680-E580 CONN in 04-Ala-680-R20.01-Ple, Alameda County, California received a condition grade of B (70/100). Built in 2001, the bridge carries 158K vehicles daily on N680-E580 CONN over E580&S680 Off San Ramon.
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
N680-E580 CONN is a 25-year-old bridge located 04-Ala-680-R20.01-Ple in Alameda County, California. The bridge carries N680-E580 CONN over E580&S680 Off San Ramon with 2 traffic lanes, handling approximately 158K vehicles per day. Built in 2001, the structure spans 553.8 meters.
The bridge received a Condition Grade of B (70/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
N680-E580 CONN has a Condition Score of 70/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
N680-E580 CONN was built in 2001, making it 25 years old. The average bridge age in the United States is 48 years.
N680-E580 CONN carries approximately 158K vehicles per day (average daily traffic). The bridge has 2 traffic lanes. It is 553.8 meters long and located on N680-E580 CONN in 04-Ala-680-R20.01-Ple, Alameda County, California.
No, N680-E580 CONN is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
N680-E580 CONN is located 04-Ala-680-R20.01-Ple in Alameda County, California. The bridge carries N680-E580 CONN over E580&S680 Off San Ramon. Its coordinates are 37.700553, -121.920650. It is maintained by State Highway Agency.
N680-E580 CONN carries N680-E580 CONN over E580&S680 Off San Ramon. The bridge is 553.8 meters long and was built 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.