US Bridges

Nfa 1077 (sa 1011) over Sulpher Springs Branch

Good

Carter County, Tennessee · Btwn Elizabethton & Watau · Structure no. 10S25150001

Built
2024
1 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
21 ft
1 main span
Daily traffic
1,005
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1077 (sa 1011) over Sulpher Springs Branch is a concrete continuous culvert carrying Nfa 1077 (sa 1011) over Sulpher Springs Branch in Carter County, Tennessee. It was built in 2024, so it is 1 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 8 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: open, temporary structure in place while original is closed.

It carries about 1,005 vehicles a day, roughly 5% of them trucks, projected to reach 1,627 by 2042. The structure is 21 ft (6.4 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesNfa 1077 (sa 1011)
CrossesSulpher Springs Branch
LocationBtwn Elizabethton & Watau
RouteCounty Highway 1077
CountyCarter County
StateTennessee
Coordinates36.34692, -82.15373
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, temporary structure in place while original is closed
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,005 (2021)
Projected traffic1,627 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$460,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1077 (sa 1011) over Sulpher Springs Branch built?

It was built in 2024, making it 1 years old in 2025.

What condition is Nfa 1077 (sa 1011) over Sulpher Springs Branch 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 August 2023.

How much traffic does Nfa 1077 (sa 1011) over Sulpher Springs Branch carry?

About 1,005 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Nfa 1077 (sa 1011) over Sulpher Springs Branch?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 20 ft wide.

Who owns Nfa 1077 (sa 1011) over Sulpher Springs Branch?

It is owned by the County Highway Agency.