US Bridges

I140 over I140 / Tennessee River

Fair

Knox County, Tennessee · 3.5 M SE JCT SR162&SR332 · Structure no. 47I01400037

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,717 ft
5 main spans
Daily traffic
43,920
2021 count
Owner
State
State Highway Agency

About this bridge

I140 over I140 / Tennessee River is a steel continuous stringer/multi-beam or girder carrying I140 over I140 / Tennessee River in Knox County, Tennessee. It was built in 1989, so it is 36 years old, younger 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 43,920 vehicles a day, roughly 6% of them trucks, projected to reach 79,056 by 2040. The structure is 1,717 ft (523.3 m) long and 88 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesI140
CrossesI140 / Tennessee River
Location3.5 M SE JCT SR162&SR332
RouteInterstate 140
CountyKnox County
StateTennessee
Coordinates35.84967, -84.01225
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length1,717 ft (523.3 m)
Longest span460 ft (140.2 m)
Deck width88 ft (26.8 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,920 (2021)
Projected traffic79,056 by 2040
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I140 over I140 / Tennessee River built?

It was built in 1989, making it 36 years old in 2025.

What condition is I140 over I140 / Tennessee 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 June 2024.

How much traffic does I140 over I140 / Tennessee River carry?

About 43,920 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I140 over I140 / Tennessee River?

The structure is 1,717 ft (523.3 m) long with a longest span of 460 ft (140.2 m) and a deck 88 ft wide.

Who owns I140 over I140 / Tennessee River?

It is owned by the State Highway Agency.