US Bridges

I24 over Red River

Fair

Montgomery County, Tennessee · 9.12 Mi. S. Kentucky Stln · Structure no. 63I00240014

Built
1972
53 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
504 ft
4 main spans
Daily traffic
88,998
2021 count
Owner
State
State Highway Agency

About this bridge

I24 over Red River is a steel continuous stringer/multi-beam or girder carrying I24 over Red River in Montgomery County, Tennessee. It was built in 1972, so it is 53 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 88,998 vehicles a day, roughly 7% of them trucks, projected to reach 117,176 by 2042. The structure is 504 ft (153.6 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI24
CrossesRed River
Location9.12 Mi. S. Kentucky Stln
RouteInterstate 24
CountyMontgomery County
StateTennessee
Coordinates36.54136, -87.2363
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.1 US tons
Inventory rating12.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length504 ft (153.6 m)
Longest span150 ft (45.7 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88,998 (2021)
Projected traffic117,176 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2,000 (2022 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I24 over Red River built?

It was built in 1972, making it 53 years old in 2025.

What condition is I24 over Red River 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 November 2024.

How much traffic does I24 over Red River carry?

About 88,998 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I24 over Red River?

The structure is 504 ft (153.6 m) long with a longest span of 150 ft (45.7 m) and a deck 44 ft wide.

Who owns I24 over Red River?

It is owned by the State Highway Agency.