US Bridges

Nfa A186 over Branch

Fair

Wilson County, Tennessee · Near SR141 on Johnson RD · Structure no. 950A1860001

Built
1993
32 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
250
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A186 over Branch is a concrete continuous culvert carrying Nfa A186 over Branch in Wilson County, Tennessee. It was built in 1993, so it is 32 years old, younger 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 250 vehicles a day, roughly 2% of them trucks, projected to reach 400 by 2038. The structure is 30 ft (9.1 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A186
CrossesBranch
LocationNear SR141 on Johnson RD
RouteCounty Highway 0A186
CountyWilson County
StateTennessee
Coordinates36.29023, -86.20721
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 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 rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span10 ft (3 m)
Deck width30 ft (9.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic400 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A186 over Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Nfa A186 over Branch 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 A186 over Branch carry?

About 250 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A186 over Branch?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns Nfa A186 over Branch?

It is owned by the County Highway Agency.