US Bridges

I40 over SR 66

Fair

Jefferson County, Tennessee · 10.89MI.FROM Sevier Co.Ln · Structure no. 45I00400010

Built
1965
60 years old, rebuilt 2000
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
195 ft
3 main spans
Daily traffic
75,118
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over SR 66 is a concrete continuous tee beam carrying I40 over SR 66 in Jefferson County, Tennessee. It was built in 1965 and reconstructed in 2000, 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 5 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 75,118 vehicles a day, roughly 6% of them trucks, projected to reach 120,189 by 2042. The structure is 195 ft (59.3 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesI40
CrossesSR 66
Location10.89MI.FROM Sevier Co.Ln
RouteInterstate 40
CountyJefferson County
StateTennessee
Coordinates36.06233, -83.3971
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating20.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length195 ft (59.3 m)
Longest span76 ft (23.3 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,118 (2021)
Projected traffic120,189 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 66 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2000.

What condition is I40 over SR 66 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 June 2024.

How much traffic does I40 over SR 66 carry?

About 75,118 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over SR 66?

The structure is 195 ft (59.3 m) long with a longest span of 76 ft (23.3 m) and a deck 63 ft wide.

Who owns I40 over SR 66?

It is owned by the State Highway Agency.