US Bridges

Nfa A386 over I40

Fair

Cocke County, Tennessee · N of SR73-I40 JCT · Structure no. 15I00400019

Built
1970
55 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
250 ft
4 main spans
Daily traffic
80
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A386 over I40 is a concrete continuous tee beam carrying Nfa A386 over I40 in Cocke 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 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 80 vehicles a day, roughly 2% of them trucks, projected to reach 128 by 2042. The structure is 250 ft (76.2 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNfa A386
CrossesI40
LocationN of SR73-I40 JCT
RouteCounty Highway 386
CountyCocke County
StateTennessee
Coordinates35.90125, -83.18336
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating19.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length250 ft (76.2 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic128 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A386 over I40 built?

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

What condition is Nfa A386 over I40 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 May 2024.

How much traffic does Nfa A386 over I40 carry?

About 80 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A386 over I40?

The structure is 250 ft (76.2 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Nfa A386 over I40?

It is owned by the State Highway Agency.