US Bridges

I24 Wbl over Duck River

Fair

Coffee County, Tennessee · Near Manchester · Structure no. 16I00240022

Built
1966
59 years old, rebuilt 1992
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
253 ft
3 main spans
Daily traffic
39,094
2021 count
Owner
State
State Highway Agency

About this bridge

I24 Wbl over Duck River is a steel continuous stringer/multi-beam or girder carrying I24 Wbl over Duck River in Coffee County, Tennessee. It was built in 1966 and reconstructed in 1992, so it is 59 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 39,094 vehicles a day, roughly 6% of them trucks, projected to reach 75,824 by 2039. The structure is 253 ft (77.2 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI24 Wbl
CrossesDuck River
LocationNear Manchester
RouteInterstate 24
Coordinates35.50185, -86.09068
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length253 ft (77.2 m)
Longest span99 ft (30.2 m)
Deck width52 ft (15.8 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,094 (2021)
Projected traffic75,824 by 2039
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I24 Wbl over Duck River built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1992.

What condition is I24 Wbl over Duck 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 October 2023.

How much traffic does I24 Wbl over Duck River carry?

About 39,094 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I24 Wbl over Duck River?

The structure is 253 ft (77.2 m) long with a longest span of 99 ft (30.2 m) and a deck 52 ft wide.

Who owns I24 Wbl over Duck River?

It is owned by the State Highway Agency.