US Bridges

I24 348161K over CSX Railroad

Good

Montgomery County, Tennessee · 5.4 MI S. Kentucky St. LN · Structure no. 63I00240010

Built
1972
53 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
134 ft
3 main spans
Daily traffic
72,698
2021 count
Owner
State
State Highway Agency

About this bridge

I24 348161K over CSX Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying I24 348161K over CSX Railroad 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 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 72,698 vehicles a day, roughly 7% of them trucks, projected to reach 94,902 by 2041. The structure is 134 ft (40.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI24 348161K
CrossesCSX Railroad
Location5.4 MI S. Kentucky St. LN
RouteInterstate 24
Coordinates36.58862, -87.2721
Functional classUrban 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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span45 ft (13.7 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72,698 (2021)
Projected traffic94,902 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 I24 348161K over CSX Railroad built?

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

What condition is I24 348161K over CSX Railroad 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 September 2024.

How much traffic does I24 348161K over CSX Railroad carry?

About 72,698 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I24 348161K over CSX Railroad?

The structure is 134 ft (40.8 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.

Who owns I24 348161K over CSX Railroad?

It is owned by the State Highway Agency.