US Bridges

Nfa A015 over Branch

Good

Trousdale County, Tennessee · 2 MI W of SR141 · Structure no. 850A0150001

Built
1983
42 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
200
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A015 over Branch is a concrete continuous culvert carrying Nfa A015 over Branch in Trousdale County, Tennessee. It was built in 1983, so it is 42 years old, younger 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2041. The structure is 37 ft (11.3 m) long and 39 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa A015
CrossesBranch
Location2 MI W of SR141
RouteCounty Highway 15
Coordinates36.45192, -86.21208
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span15 ft (4.6 m)
Deck width39 ft (11.8 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2020)
Projected traffic320 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 A015 over Branch built?

It was built in 1983, making it 42 years old in 2025.

What condition is Nfa A015 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 February 2023.

How much traffic does Nfa A015 over Branch carry?

About 200 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa A015 over Branch?

The structure is 37 ft (11.3 m) long with a longest span of 15 ft (4.6 m) and a deck 39 ft wide.

Who owns Nfa A015 over Branch?

It is owned by the County Highway Agency.