US Bridges

Nfa A085 over South Fork Red River

Fair

Robertson County, Tennessee · .6 MI E JCT SR65&KY ST LN · Structure no. 740A0850001

Built
1950
75 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
185 ft
4 main spans
Daily traffic
190
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A085 over South Fork Red River is a concrete tee beam carrying Nfa A085 over South Fork Red River in Robertson County, Tennessee. It was built in 1950, so it is 75 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 190 vehicles a day, roughly 2% of them trucks, projected to reach 304 by 2040. The structure is 185 ft (56.4 m) long and 22 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa A085
CrossesSouth Fork Red River
Location.6 MI E JCT SR65&KY ST LN
RouteCounty Highway 0A085
Coordinates36.64716, -86.84346
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length185 ft (56.4 m)
Longest span45 ft (13.7 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2020)
Projected traffic304 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$514,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A085 over South Fork Red River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa A085 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 A085 over South Fork Red River carry?

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

How long is Nfa A085 over South Fork Red River?

The structure is 185 ft (56.4 m) long with a longest span of 45 ft (13.7 m) and a deck 22 ft wide.

Who owns Nfa A085 over South Fork Red River?

It is owned by the County Highway Agency.