US Bridges

Nfa A086 over South Fork Red River

Fair

Robertson County, Tennessee · 2.6 MI SE JCT SR65&KY LN · Structure no. 740A0860001

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
166 ft
3 main spans
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A086 over South Fork Red River is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A086 over South Fork Red River in Robertson 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 110 vehicles a day, roughly 2% of them trucks, projected to reach 176 by 2040. The structure is 166 ft (50.6 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa A086
CrossesSouth Fork Red River
Location2.6 MI SE JCT SR65&KY LN
RouteCounty Highway 0A086
Coordinates36.6344, -86.8115
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length166 ft (50.6 m)
Longest span53 ft (16.2 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A086 over South Fork Red River built?

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

What condition is Nfa A086 over South Fork Red River 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 April 2024.

How much traffic does Nfa A086 over South Fork Red River carry?

About 110 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A086 over South Fork Red River?

The structure is 166 ft (50.6 m) long with a longest span of 53 ft (16.2 m) and a deck 28 ft wide.

Who owns Nfa A086 over South Fork Red River?

It is owned by the County Highway Agency.