US Bridges

Nfa A482 over I40

FairPosted for load

Jefferson County, Tennessee · Near Dandridge · Structure no. 45I00400003

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
369 ft
4 main spans
Daily traffic
410
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A482 over I40 is a steel continuous stringer/multi-beam or girder carrying Nfa A482 over I40 in Jefferson County, Tennessee. It was built in 1964, so it is 61 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. Its operating status is: posted for load restriction.

It carries about 410 vehicles a day, roughly 2% of them trucks, projected to reach 656 by 2042. The structure is 369 ft (112.4 m) long and 29 ft wide. If it were closed, the detour would be 90.1 mi (145 km).

Location

Open in Google Maps
CarriesNfa A482
CrossesI40
LocationNear Dandridge
RouteCounty Highway 482
CountyJefferson County
StateTennessee
Coordinates36.03402, -83.4519
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.3 US tons
Inventory rating18.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length369 ft (112.4 m)
Longest span116 ft (35.4 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2020)
Projected traffic656 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed90.1 mi (145 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$824,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A482 over I40 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Nfa A482 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 June 2024.

How much traffic does Nfa A482 over I40 carry?

About 410 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A482 over I40?

The structure is 369 ft (112.4 m) long with a longest span of 116 ft (35.4 m) and a deck 29 ft wide.

Who owns Nfa A482 over I40?

It is owned by the State Highway Agency.