I75
I75 in I24 I75 Interchange, Hamilton County, Tennessee received a condition grade of B (70/100). Built in 1960, the bridge carries 138K vehicles daily on I75 over South Chickamauga Creek.
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
I75 is a 66-year-old bridge located I24 I75 Interchange in Hamilton County, Tennessee. The bridge carries I75 over South Chickamauga Creek with 11 traffic lanes, handling approximately 138K vehicles per day. Built in 1960 and reconstructed in 1992, the structure spans 81.1 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 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I75 has a Condition Score of 70/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I75 was built in 1960 and reconstructed in 1992, making it 66 years old. The average bridge age in the United States is 48 years.
I75 carries approximately 138K vehicles per day (average daily traffic). The bridge has 11 traffic lanes. It is 81.1 meters long and located on I75 in I24 I75 Interchange, Hamilton County, Tennessee.
No, I75 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I75 is located I24 I75 Interchange in Hamilton County, Tennessee. The bridge carries I75 over South Chickamauga Creek. Its coordinates are 35.007436, -85.202217. It is maintained by State Highway Agency.
I75 carries I75 over South Chickamauga Creek. The bridge is 81.1 meters long and was built in 1960, with reconstruction in 1992.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.