I40
I40 in I40/ Fairfield AVE, Davidson County, Tennessee received a condition grade of C (55/100). Built in 1960, the bridge carries 169K vehicles daily on I40 over Fairfield AVE.
I40 carries a C on the BridgeSafety Condition Score with 55/100. 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 1960 and is now 66 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. I40 carries an average daily traffic count of 169,445 vehicles, with 4 lane(s) crossing Fairfield AVE. 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
I40 is a 66-year-old bridge located I40/ Fairfield AVE in Davidson County, Tennessee. The bridge carries I40 over Fairfield AVE with 4 traffic lanes, handling approximately 169K vehicles per day. Built in 1960, the structure spans 45.7 meters.
The bridge received a Condition Grade of C (55/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I40 has a Condition Score of 55/100 (Grade C). Its deck is rated 5/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I40 was built in 1960, making it 66 years old. The average bridge age in the United States is 48 years.
I40 carries approximately 169K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 45.7 meters long and located on I40 in I40/ Fairfield AVE, Davidson County, Tennessee.
No, I40 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I40 is located I40/ Fairfield AVE in Davidson County, Tennessee. The bridge carries I40 over Fairfield AVE. Its coordinates are 36.153439, -86.756278. It is maintained by State Highway Agency.
I40 carries I40 over Fairfield AVE. The bridge is 45.7 meters long and was built in 1960.
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.