US Bridges

I40 over Davidson Road

Fair

Davidson County, Tennessee · I40/ Davidson RD · Structure no. 19I00400017

Built
1959
66 years old, rebuilt 1992
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
182 ft
3 main spans
Daily traffic
85,860
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over Davidson Road is a steel continuous stringer/multi-beam or girder carrying I40 over Davidson Road in Davidson County, Tennessee. It was built in 1959 and reconstructed in 1992, so it is 66 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 85,860 vehicles a day, roughly 7% of them trucks, projected to reach 137,376 by 2042. The structure is 182 ft (55.5 m) long and 120 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI40
CrossesDavidson Road
LocationI40/ Davidson RD
RouteInterstate I0040
Coordinates36.12646, -86.90311
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.3 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span75 ft (22.9 m)
Deck width120 ft (36.6 m)
Roadway width118 ft (36 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85,860 (2021)
Projected traffic137,376 by 2042
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over Davidson Road built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1992.

What condition is I40 over Davidson Road in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does I40 over Davidson Road carry?

About 85,860 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 over Davidson Road?

The structure is 182 ft (55.5 m) long with a longest span of 75 ft (22.9 m) and a deck 120 ft wide.

Who owns I40 over Davidson Road?

It is owned by the State Highway Agency.