US Bridges

Nfa A218 over Stone Creek

Good

Sequatchie County, Tennessee · 2 MI South of Dunlap · Structure no. 770A2180001

Built
1996
29 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A218 over Stone Creek is a concrete continuous culvert carrying Nfa A218 over Stone Creek in Sequatchie County, Tennessee. It was built in 1996, so it is 29 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 110 vehicles a day, roughly 2% of them trucks, projected to reach 176 by 2041. The structure is 34 ft (10.4 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa A218
CrossesStone Creek
Location2 MI South of Dunlap
RouteCounty Highway 218
Coordinates35.31881, -85.42281
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.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum 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 length34 ft (10.4 m)
Longest span16 ft (4.9 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 A218 over Stone Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Nfa A218 over Stone 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 December 2024.

How much traffic does Nfa A218 over Stone Creek carry?

About 110 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A218 over Stone Creek?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m) and a deck 26 ft wide.

Who owns Nfa A218 over Stone Creek?

It is owned by the County Highway Agency.