US Bridges

I40 over I40/I40-EB Rmp to I75 N

Good

Knox County, Tennessee · At I-40 & I-75 JCT · Structure no. 47I00400037

Built
1981
44 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
416 ft
3 main spans
Daily traffic
182,502
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40/I40-EB Rmp to I75 N is a steel continuous stringer/multi-beam or girder carrying I40 over I40/I40-EB Rmp to I75 N in Knox County, Tennessee. It was built in 1981, so it is 44 years old, younger 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 182,502 vehicles a day, roughly 6% of them trucks, projected to reach 344,352 by 2041. The structure is 416 ft (126.8 m) long and 132 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI40
CrossesI40/I40-EB Rmp to I75 N
LocationAt I-40 & I-75 JCT
RouteInterstate 40
CountyKnox County
StateTennessee
Coordinates35.95568, -83.97305
Functional classUrban 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 inspectionOctober 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 rating81.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length416 ft (126.8 m)
Longest span208 ft (63.4 m)
Deck width132 ft (40.2 m)
Roadway width130 ft (39.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic182,502 (2021)
Projected traffic344,352 by 2041
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over I40/I40-EB Rmp to I75 N built?

It was built in 1981, making it 44 years old in 2025.

What condition is I40 over I40/I40-EB Rmp to I75 N 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 October 2024.

How much traffic does I40 over I40/I40-EB Rmp to I75 N carry?

About 182,502 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over I40/I40-EB Rmp to I75 N?

The structure is 416 ft (126.8 m) long with a longest span of 208 ft (63.4 m) and a deck 132 ft wide.

Who owns I40 over I40/I40-EB Rmp to I75 N?

It is owned by the State Highway Agency.