I24
I24 in .9 MI SE JCT Sr155, Davidson County, Tennessee received a condition grade of C (58/100). Built in 1958, the bridge carries 178K vehicles daily on I24 over Seven Mile Creek.
I24 carries a C on the BridgeSafety Condition Score with 58/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
The bridge was built in 1958 and is now 68 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. I24 carries an average daily traffic count of 177,574 vehicles, with 6 lane(s) crossing Seven Mile Creek. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
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
I24 is a 68-year-old bridge located .9 MI SE JCT Sr155 in Davidson County, Tennessee. The bridge carries I24 over Seven Mile Creek with 6 traffic lanes, handling approximately 178K vehicles per day. Built in 1958 and reconstructed in 1985, the structure spans 41.1 meters.
The bridge received a Condition Grade of C (58/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I24 has a Condition Score of 58/100 (Grade C). Its deck is rated 6/9, superstructure 7/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
I24 was built in 1958 and reconstructed in 1985, making it 68 years old. The average bridge age in the United States is 48 years.
I24 carries approximately 178K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 41.1 meters long and located on I24 in .9 MI SE JCT Sr155, Davidson County, Tennessee.
No, I24 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I24 is located .9 MI SE JCT Sr155 in Davidson County, Tennessee. The bridge carries I24 over Seven Mile Creek. Its coordinates are 36.100844, -86.712189. It is maintained by State Highway Agency.
I24 carries I24 over Seven Mile Creek. The bridge is 41.1 meters long and was built in 1958, with reconstruction in 1985.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.