US Bridges

Nfa B124 over Devil Fork Creek

GoodPosted for load

Unicoi County, Tennessee · 3MI W of I26 · Structure no. 860Z0010001

Built
2009
16 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Steel
Length
43 ft
1 main span
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B124 over Devil Fork Creek is a steel box beam or girders - multiple carrying Nfa B124 over Devil Fork Creek in Unicoi County, Tennessee. It was built in 2009, so it is 16 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 1% of them trucks, projected to reach 16 by 2040. The structure is 43 ft (13 m) long and 18 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesNfa B124
CrossesDevil Fork Creek
Location3MI W of I26
RouteCounty Highway 124
Coordinates36.04222, -82.54222
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13 m)
Longest span42 ft (12.8 m)
Deck width18 ft (5.6 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic16 by 2040
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 B124 over Devil Fork Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Nfa B124 over Devil Fork 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 July 2024.

How much traffic does Nfa B124 over Devil Fork Creek carry?

About 10 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa B124 over Devil Fork Creek?

The structure is 43 ft (13 m) long with a longest span of 42 ft (12.8 m) and a deck 18 ft wide.

Who owns Nfa B124 over Devil Fork Creek?

It is owned by the County Highway Agency.