US Bridges

I40 over I40-RL/STRAWBERRY Plain

Good

Knox County, Tennessee · 1.2 M N of SR9 · Structure no. 47I00400105

Built
1971
54 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
273 ft
4 main spans
Daily traffic
86,972
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40-RL/STRAWBERRY Plain is a prestressed concrete continuous box beam or girders - multiple carrying I40 over I40-RL/STRAWBERRY Plain in Knox County, Tennessee. It was built in 1971, so it is 54 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 86,972 vehicles a day, roughly 6% of them trucks, projected to reach 112,768 by 2041. The structure is 273 ft (83.2 m) long and 62 ft wide.

CarriesI40
CrossesI40-RL/STRAWBERRY Plain
Location1.2 M N of SR9
RouteInterstate 40
Coordinates36.00268, -83.77585
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length273 ft (83.2 m)
Longest span97 ft (29.7 m)
Deck width62 ft (18.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86,972 (2021)
Projected traffic112,768 by 2041
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 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-RL/STRAWBERRY Plain built?

It was built in 1971, making it 54 years old in 2025.

What condition is I40 over I40-RL/STRAWBERRY Plain 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 December 2024.

How much traffic does I40 over I40-RL/STRAWBERRY Plain carry?

About 86,972 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over I40-RL/STRAWBERRY Plain?

The structure is 273 ft (83.2 m) long with a longest span of 97 ft (29.7 m) and a deck 62 ft wide.

Who owns I40 over I40-RL/STRAWBERRY Plain?

It is owned by the State Highway Agency.