US Bridges

Nfa A386 over Branch

Good

Montgomery County, Tennessee · 5 M. Se. Cunningham. · Structure no. 630A3860001

Built
1955
70 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
170
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A386 over Branch is a concrete continuous culvert carrying Nfa A386 over Branch in Montgomery County, Tennessee. It was built in 1955, so it is 70 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 170 vehicles a day, roughly 2% of them trucks, projected to reach 272 by 2040. The structure is 24 ft (7.3 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNfa A386
CrossesBranch
Location5 M. Se. Cunningham.
RouteCounty Highway 386
Coordinates36.36503, -87.30213
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span6 ft (1.8 m)
Deck width37 ft (11.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2020)
Projected traffic272 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 A386 over Branch built?

It was built in 1955, making it 70 years old in 2025.

What condition is Nfa A386 over Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Nfa A386 over Branch carry?

About 170 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A386 over Branch?

The structure is 24 ft (7.3 m) long with a longest span of 6 ft (1.8 m) and a deck 37 ft wide.

Who owns Nfa A386 over Branch?

It is owned by the County Highway Agency.