US Bridges

Nfa A394 over Long Creek

Good

Macon County, Tennessee · 5.5 M SE of Lafayette · Structure no. 560A3940001

Built
1992
33 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
45 ft
2 main spans
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A394 over Long Creek is a concrete continuous culvert carrying Nfa A394 over Long Creek in Macon County, Tennessee. It was built in 1992, so it is 33 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, roughly 9% of them trucks, projected to reach 128 by 2041. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa A394
CrossesLong Creek
Location5.5 M SE of Lafayette
RouteCounty Highway 394
Coordinates36.48892, -85.93718
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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 alignment7: Better than present minimum criteria
Operating rating99.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span18 ft (5.5 m)
Deck width28 ft (8.4 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic128 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 A394 over Long Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa A394 over Long Creek 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 September 2023.

How much traffic does Nfa A394 over Long Creek carry?

About 80 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Nfa A394 over Long Creek?

The structure is 45 ft (13.7 m) long with a longest span of 18 ft (5.5 m) and a deck 28 ft wide.

Who owns Nfa A394 over Long Creek?

It is owned by the County Highway Agency.