US Bridges

I40 over SR 9

Good

Jefferson County, Tennessee · 5.64 Mi.From Sevier Co.Ln · Structure no. 45I00400002

Built
1965
60 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
233 ft
3 main spans
Daily traffic
75,859
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over SR 9 is a concrete continuous tee beam carrying I40 over SR 9 in Jefferson County, Tennessee. It was built in 1965, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75,859 vehicles a day, roughly 6% of them trucks, projected to reach 121,374 by 2042. The structure is 233 ft (71 m) long and 70 ft wide.

CarriesI40
CrossesSR 9
Location5.64 Mi.From Sevier Co.Ln
RouteInterstate 40
Coordinates36.02299, -83.47636
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 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 rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length233 ft (71 m)
Longest span105 ft (32 m)
Deck width70 ft (21.3 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,859 (2021)
Projected traffic121,374 by 2042
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over SR 9 built?

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

What condition is I40 over SR 9 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does I40 over SR 9 carry?

About 75,859 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over SR 9?

The structure is 233 ft (71 m) long with a longest span of 105 ft (32 m) and a deck 70 ft wide.

Who owns I40 over SR 9?

It is owned by the State Highway Agency.