US Bridges

I40 over Cub Creek

Fair

Madison County, Tennessee · 3.5 MI N of SR138 · Structure no. 57I00400013

Built
1960
65 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
142 ft
5 main spans
Daily traffic
41,499
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over Cub Creek is a concrete tee beam carrying I40 over Cub Creek in Madison County, Tennessee. It was built in 1960, so it is 65 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 41,499 vehicles a day, roughly 8% of them trucks, projected to reach 66,398 by 2042. The structure is 142 ft (43.3 m) long and 43 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesI40
CrossesCub Creek
Location3.5 MI N of SR138
RouteInterstate 40
CountyMadison County
StateTennessee
Coordinates35.63689, -88.93564
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span29 ft (8.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,499 (2021)
Projected traffic66,398 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 Cub Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is I40 over Cub Creek 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 April 2023.

How much traffic does I40 over Cub Creek carry?

About 41,499 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is I40 over Cub Creek?

The structure is 142 ft (43.3 m) long with a longest span of 29 ft (8.8 m) and a deck 43 ft wide.

Who owns I40 over Cub Creek?

It is owned by the State Highway Agency.