US Bridges

I40 Lf LN over Nfa 2366

Fair

Roane County, Tennessee · 2.2 M SE JCT I40&SR326 · Structure no. 73I00400028

Built
1970
55 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
148 ft
3 main spans
Daily traffic
44,926
2021 count
Owner
State
State Highway Agency

About this bridge

I40 Lf LN over Nfa 2366 is a concrete continuous tee beam carrying I40 Lf LN over Nfa 2366 in Roane County, Tennessee. It was built in 1970, so it is 55 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 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 44,926 vehicles a day, roughly 6% of them trucks, projected to reach 69,392 by 2040. The structure is 148 ft (45.1 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI40 Lf LN
CrossesNfa 2366
Location2.2 M SE JCT I40&SR326
RouteInterstate 40
CountyRoane County
StateTennessee
Coordinates35.86055, -84.40708
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length148 ft (45.1 m)
Longest span58 ft (17.7 m)
Deck width36 ft (11.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,926 (2021)
Projected traffic69,392 by 2040
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$548,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 Lf LN over Nfa 2366 built?

It was built in 1970, making it 55 years old in 2025.

What condition is I40 Lf LN over Nfa 2366 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 September 2024.

How much traffic does I40 Lf LN over Nfa 2366 carry?

About 44,926 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 Lf LN over Nfa 2366?

The structure is 148 ft (45.1 m) long with a longest span of 58 ft (17.7 m) and a deck 36 ft wide.

Who owns I40 Lf LN over Nfa 2366?

It is owned by the State Highway Agency.