US Bridges

Nfa 1380 (sa 8241) over Thomas Creek

Fair

Sullivan County, Tennessee · Just NW of Dam-S of US421 · Structure no. 82013800001

Built
1950
75 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
46 ft
3 main spans
Daily traffic
1,810
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1380 (sa 8241) over Thomas Creek is a concrete continuous culvert carrying Nfa 1380 (sa 8241) over Thomas Creek in Sullivan County, Tennessee. It was built in 1950, so it is 75 years old, older 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 1,810 vehicles a day, roughly 3% of them trucks, projected to reach 2,979 by 2042. The structure is 46 ft (13.9 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa 1380 (sa 8241)
CrossesThomas Creek
LocationJust NW of Dam-S of US421
RouteCounty Highway 1380
CountySullivan County
StateTennessee
Coordinates36.53477, -82.10245
Functional classRural Minor Collector

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length46 ft (13.9 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,810 (2021)
Projected traffic2,979 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 1380 (sa 8241) over Thomas Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa 1380 (sa 8241) over Thomas 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 February 2024.

How much traffic does Nfa 1380 (sa 8241) over Thomas Creek carry?

About 1,810 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1380 (sa 8241) over Thomas Creek?

The structure is 46 ft (13.9 m) long with a longest span of 14 ft (4.3 m).

Who owns Nfa 1380 (sa 8241) over Thomas Creek?

It is owned by the County Highway Agency.