US Bridges

Nfa A312 over Long Creek

Fair

Stewart County, Tennessee · 3MI.S-E of Dover · Structure no. 810A2950001

Built
1994
31 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
57 ft
3 main spans
Daily traffic
60
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A312 over Long Creek is a concrete continuous culvert carrying Nfa A312 over Long Creek in Stewart County, Tennessee. It was built in 1994, so it is 31 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 96 by 2042. The structure is 57 ft (17.4 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNfa A312
CrossesLong Creek
Location3MI.S-E of Dover
RouteCounty Highway 312
CountyStewart County
StateTennessee
Coordinates36.43908, -87.79867
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span14 ft (4.3 m)
Deck width28 ft (8.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2020)
Projected traffic96 by 2042
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 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 A312 over Long Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Nfa A312 over Long Creek 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 March 2024.

How much traffic does Nfa A312 over Long Creek carry?

About 60 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A312 over Long Creek?

The structure is 57 ft (17.4 m) long with a longest span of 14 ft (4.3 m) and a deck 28 ft wide.

Who owns Nfa A312 over Long Creek?

It is owned by the County Highway Agency.