US Bridges

Nfa 2680 (sa 1001) over Doe River

Poor

Carter County, Tennessee · W of SR143-NEAR St. Line · Structure no. 10026800003

Built
1984
41 years old
Condition
Poor
inspected June 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
689
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2680 (sa 1001) over Doe River is a concrete continuous culvert carrying Nfa 2680 (sa 1001) over Doe River in Carter County, Tennessee. It was built in 1984, so it is 41 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 689 vehicles a day, roughly 3% of them trucks, projected to reach 1,104 by 2041. The structure is 37 ft (11.3 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa 2680 (sa 1001)
CrossesDoe River
LocationW of SR143-NEAR St. Line
RouteCounty Highway 2680
CountyCarter County
StateTennessee
Coordinates36.14482, -82.10838
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length37 ft (11.3 m)
Longest span17 ft (5.2 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic689 (2021)
Projected traffic1,104 by 2041
Trucks3%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$562,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2680 (sa 1001) over Doe River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa 2680 (sa 1001) over Doe River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does Nfa 2680 (sa 1001) over Doe River carry?

About 689 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2680 (sa 1001) over Doe River?

The structure is 37 ft (11.3 m) long with a longest span of 17 ft (5.2 m) and a deck 30 ft wide.

Who owns Nfa 2680 (sa 1001) over Doe River?

It is owned by the County Highway Agency.