US Bridges

I40 over Caney Fork Riv & Nfa A43

Fair

Smith County, Tennessee · 0.03 MI W. Putnam Co. Ln. · Structure no. 80I00400035

Built
1971
54 years old, rebuilt 1991
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
320 ft
4 main spans
Daily traffic
44,898
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over Caney Fork Riv & Nfa A43 is a prestressed concrete box beam or girders - multiple carrying I40 over Caney Fork Riv & Nfa A43 in Smith County, Tennessee. It was built in 1971 and reconstructed in 1991, so it is 54 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 44,898 vehicles a day, roughly 7% of them trucks, projected to reach 65,931 by 2041. The structure is 320 ft (97.5 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI40
CrossesCaney Fork Riv & Nfa A43
Location0.03 MI W. Putnam Co. Ln.
RouteInterstate 40
CountySmith County
StateTennessee
Coordinates36.13978, -85.8028
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans4
Design loadH 20
Structure length320 ft (97.5 m)
Longest span90 ft (27.4 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,898 (2021)
Projected traffic65,931 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I40 over Caney Fork Riv & Nfa A43 built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1991.

What condition is I40 over Caney Fork Riv & Nfa A43 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 August 2023.

How much traffic does I40 over Caney Fork Riv & Nfa A43 carry?

About 44,898 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 over Caney Fork Riv & Nfa A43?

The structure is 320 ft (97.5 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.

Who owns I40 over Caney Fork Riv & Nfa A43?

It is owned by the State Highway Agency.