US Bridges

I24 over I24-SR1

Fair

Davidson County, Tennessee · I440-I24 Loop - C6 · Structure no. 19I00240095

Built
1985
40 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
512 ft
3 main spans
Daily traffic
148,679
2021 count
Owner
State
State Highway Agency

About this bridge

I24 over I24-SR1 is a steel continuous box beam or girders - single or spread carrying I24 over I24-SR1 in Davidson County, Tennessee. It was built in 1985, so it is 40 years old, younger 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 148,679 vehicles a day, roughly 7% of them trucks, projected to reach 245,498 by 2042. The structure is 512 ft (156.1 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI24
CrossesI24-SR1
LocationI440-I24 Loop - C6
RouteInterstate 24
CountyDavidson County
StateTennessee
Coordinates36.12624, -86.72856
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 rating35.4 US tons
Inventory rating27.4 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length512 ft (156.1 m)
Longest span197 ft (60 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic148,679 (2021)
Projected traffic245,498 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I24 over I24-SR1 built?

It was built in 1985, making it 40 years old in 2025.

What condition is I24 over I24-SR1 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 I24 over I24-SR1 carry?

About 148,679 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I24 over I24-SR1?

The structure is 512 ft (156.1 m) long with a longest span of 197 ft (60 m) and a deck 44 ft wide.

Who owns I24 over I24-SR1?

It is owned by the State Highway Agency.