US Bridges

I24 over I-24 / SR-27 (US-72)

Good

Marion County, Tennessee · 3.5 MI FM SR156 · Structure no. 58I00240031

Built
2012
13 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
188 ft
2 main spans
Daily traffic
36,821
2021 count
Owner
State
State Highway Agency

About this bridge

I24 over I-24 / SR-27 (US-72) is a prestressed concrete continuous stringer/multi-beam or girder carrying I24 over I-24 / SR-27 (US-72) in Marion County, Tennessee. It was built in 2012, so it is 13 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 36,821 vehicles a day, roughly 7% of them trucks, projected to reach 56,560 by 2040. The structure is 188 ft (57.3 m) long and 145 ft wide.

CarriesI24
CrossesI-24 / SR-27 (US-72)
Location3.5 MI FM SR156
RouteInterstate 24
Coordinates35.04007, -85.69093
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating61.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length188 ft (57.3 m)
Longest span106 ft (32.3 m)
Deck width145 ft (44.3 m)
Roadway width144 ft (43.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,821 (2021)
Projected traffic56,560 by 2040
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 I24 over I-24 / SR-27 (US-72) built?

It was built in 2012, making it 13 years old in 2025.

What condition is I24 over I-24 / SR-27 (US-72) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does I24 over I-24 / SR-27 (US-72) carry?

About 36,821 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I24 over I-24 / SR-27 (US-72)?

The structure is 188 ft (57.3 m) long with a longest span of 106 ft (32.3 m) and a deck 145 ft wide.

Who owns I24 over I-24 / SR-27 (US-72)?

It is owned by the State Highway Agency.