US Bridges

Nfa A254 over Sink Creek

Fair

DeKalb County, Tennessee · 4.1 MI from SR56 · Structure no. 210A2030001

Built
1986
39 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
74 ft
4 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A254 over Sink Creek is a concrete continuous culvert carrying Nfa A254 over Sink Creek in DeKalb County, Tennessee. It was built in 1986, so it is 39 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 30 vehicles a day, roughly 1% of them trucks, projected to reach 48 by 2042. The structure is 74 ft (22.6 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A254
CrossesSink Creek
Location4.1 MI from SR56
RouteCounty Highway 254
CountyDeKalb County
StateTennessee
Coordinates35.87219, -85.77125
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating89.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span12 ft (3.7 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2042
Trucks1%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A254 over Sink Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa A254 over Sink 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 November 2023.

How much traffic does Nfa A254 over Sink Creek carry?

About 30 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A254 over Sink Creek?

The structure is 74 ft (22.6 m) long with a longest span of 12 ft (3.7 m) and a deck 25 ft wide.

Who owns Nfa A254 over Sink Creek?

It is owned by the County Highway Agency.