US Bridges

I40 over I40 Ramp & SR 24

Fair

Davidson County, Tennessee · I65-I40 Interchange · Structure no. 19I00400313

Built
1960
65 years old, rebuilt 1973
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
396 ft
4 main spans
Daily traffic
76,357
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40 Ramp & SR 24 is a steel stringer/multi-beam or girder carrying I40 over I40 Ramp & SR 24 in Davidson County, Tennessee. It was built in 1960 and reconstructed in 1973, so it is 65 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 76,357 vehicles a day, roughly 7% of them trucks, projected to reach 126,080 by 2042. The structure is 396 ft (120.7 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesI40
CrossesI40 Ramp & SR 24
LocationI65-I40 Interchange
RouteInterstate I0040
CountyDavidson County
StateTennessee
Coordinates36.15465, -86.7617
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 rating53.6 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length396 ft (120.7 m)
Longest span137 ft (41.8 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,357 (2021)
Projected traffic126,080 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over I40 Ramp & SR 24 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1973.

What condition is I40 over I40 Ramp & SR 24 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 December 2023.

How much traffic does I40 over I40 Ramp & SR 24 carry?

About 76,357 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 over I40 Ramp & SR 24?

The structure is 396 ft (120.7 m) long with a longest span of 137 ft (41.8 m) and a deck 44 ft wide.

Who owns I40 over I40 Ramp & SR 24?

It is owned by the State Highway Agency.