US Bridges

I40 over Big Sandy River

Fair

Henderson County, Tennessee · 1.4 MI N of Dadds Creek · Structure no. 39I00400019

Built
1965
60 years old, rebuilt 1989
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
639 ft
10 main spans
Daily traffic
31,441
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over Big Sandy River is a prestressed concrete continuous stringer/multi-beam or girder carrying I40 over Big Sandy River in Henderson County, Tennessee. It was built in 1965 and reconstructed in 1989, so it is 60 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 31,441 vehicles a day, roughly 8% of them trucks, projected to reach 50,306 by 2042. The structure is 639 ft (194.9 m) long and 44 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

CarriesI40
CrossesBig Sandy River
Location1.4 MI N of Dadds Creek
RouteInterstate 40
Coordinates35.80041, -88.34714
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating32.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20 + Mod
Structure length639 ft (194.9 m)
Longest span65 ft (19.7 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,441 (2021)
Projected traffic50,306 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 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 Big Sandy River built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1989.

What condition is I40 over Big Sandy 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 May 2024.

How much traffic does I40 over Big Sandy River carry?

About 31,441 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is I40 over Big Sandy River?

The structure is 639 ft (194.9 m) long with a longest span of 65 ft (19.7 m) and a deck 44 ft wide.

Who owns I40 over Big Sandy River?

It is owned by the State Highway Agency.