US Bridges

I75 over Nfa A031

Fair

Campbell County, Tennessee · 5.64 M.From Anderson Co.L · Structure no. 07I00750013

Built
1967
58 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete Continuous
Length
138 ft
3 main spans
Daily traffic
30,123
2021 count
Owner
State
State Highway Agency

About this bridge

I75 over Nfa A031 is a concrete continuous tee beam carrying I75 over Nfa A031 in Campbell County, Tennessee. It was built in 1967, so it is 58 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 30,123 vehicles a day, roughly 6% of them trucks, projected to reach 48,197 by 2042. The structure is 138 ft (42.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI75
CrossesNfa A031
Location5.64 M.From Anderson Co.L
RouteInterstate 75
CountyCampbell County
StateTennessee
Coordinates36.30598, -84.22597
Functional classUrban 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
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 inspectionAugust 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.9 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length138 ft (42.1 m)
Longest span54 ft (16.5 m)
Deck width40 ft (12.3 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,123 (2021)
Projected traffic48,197 by 2042
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I75 over Nfa A031 built?

It was built in 1967, making it 58 years old in 2025.

What condition is I75 over Nfa A031 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 August 2023.

How much traffic does I75 over Nfa A031 carry?

About 30,123 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I75 over Nfa A031?

The structure is 138 ft (42.1 m) long with a longest span of 54 ft (16.5 m) and a deck 40 ft wide.

Who owns I75 over Nfa A031?

It is owned by the State Highway Agency.