US Bridges

I24 Wbl over I24 WB / CSX RR

Fair

Hamilton County, Tennessee · .1 MI East of I124 · Structure no. 33I00240014

Built
1990
35 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
302 ft
3 main spans
Daily traffic
69,132
2021 count
Owner
State
State Highway Agency

About this bridge

I24 Wbl over I24 WB / CSX RR is a steel continuous stringer/multi-beam or girder carrying I24 Wbl over I24 WB / CSX RR in Hamilton County, Tennessee. It was built in 1990, so it is 35 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 69,132 vehicles a day, roughly 6% of them trucks, projected to reach 120,016 by 2041. The structure is 302 ft (92.1 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI24 Wbl
CrossesI24 WB / CSX RR
Location.1 MI East of I124
RouteInterstate 24
Coordinates35.0313, -85.32108
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.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating59.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length302 ft (92.1 m)
Longest span151 ft (46.1 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69,132 (2021)
Projected traffic120,016 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 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 Wbl over I24 WB / CSX RR built?

It was built in 1990, making it 35 years old in 2025.

What condition is I24 Wbl over I24 WB / CSX RR 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 September 2024.

How much traffic does I24 Wbl over I24 WB / CSX RR carry?

About 69,132 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I24 Wbl over I24 WB / CSX RR?

The structure is 302 ft (92.1 m) long with a longest span of 151 ft (46.1 m) and a deck 48 ft wide.

Who owns I24 Wbl over I24 WB / CSX RR?

It is owned by the State Highway Agency.