US Bridges

Nfa A001 over I40

FairPosted for load

Cumberland County, Tennessee · 1 MI from Putnam CO Li · Structure no. 18I00400003

Built
1964
61 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete Continuous
Length
316 ft
4 main spans
Daily traffic
190
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A001 over I40 is a concrete continuous tee beam carrying Nfa A001 over I40 in Cumberland 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 190 vehicles a day, roughly 2% of them trucks, projected to reach 304 by 2042. The structure is 316 ft (96.3 m) long and 29 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesNfa A001
CrossesI40
Location1 MI from Putnam CO Li
RouteCounty Highway 1
Coordinates36.09191, -85.22844
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.9 US tons
Inventory rating22.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length316 ft (96.3 m)
Longest span91 ft (27.7 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2020)
Projected traffic304 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed14.9 mi (24 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A001 over I40 built?

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

What condition is Nfa A001 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 October 2023.

How much traffic does Nfa A001 over I40 carry?

About 190 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A001 over I40?

The structure is 316 ft (96.3 m) long with a longest span of 91 ft (27.7 m) and a deck 29 ft wide.

Who owns Nfa A001 over I40?

It is owned by the State Highway Agency.