US Bridges

Nfa A266 over Sink Creek

Fair

DeKalb County, Tennessee · 7 MI S of Smithville · Structure no. 210A2660001

Built
1987
38 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
52 ft
4 main spans
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A266 over Sink Creek is a concrete continuous culvert carrying Nfa A266 over Sink Creek in DeKalb County, Tennessee. It was built in 1987, so it is 38 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 40 vehicles a day, roughly 2% of them trucks, projected to reach 64 by 2042. The structure is 52 ft (15.8 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A266
CrossesSink Creek
Location7 MI S of Smithville
RouteCounty Highway 266
CountyDeKalb County
StateTennessee
Coordinates35.86508, -85.77161
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 inspectionNovember 2023
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 rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length52 ft (15.8 m)
Longest span12 ft (3.7 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic64 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 A266 over Sink Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nfa A266 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 A266 over Sink Creek carry?

About 40 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A266 over Sink Creek?

The structure is 52 ft (15.8 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns Nfa A266 over Sink Creek?

It is owned by the County Highway Agency.