US Bridges

Nfa A912 over Stoney Creek

Fair

Carter County, Tennessee · S of SR91-NE of Ebethton · Structure no. 100A9120003

Built
1985
40 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
190
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A912 over Stoney Creek is a steel stringer/multi-beam or girder carrying Nfa A912 over Stoney Creek in Carter County, Tennessee. It was built in 1985, so it is 40 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 190 vehicles a day, roughly 2% of them trucks, projected to reach 304 by 2041. The structure is 36 ft (10.9 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A912
CrossesStoney Creek
LocationS of SR91-NE of Ebethton
RouteCounty Highway 912
CountyCarter County
StateTennessee
Coordinates36.38047, -82.14163
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (10.9 m)
Longest span31 ft (9.6 m)
Deck width18 ft (5.6 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2020)
Projected traffic304 by 2041
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$173,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A912 over Stoney Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa A912 over Stoney 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 August 2023.

How much traffic does Nfa A912 over Stoney Creek carry?

About 190 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A912 over Stoney Creek?

The structure is 36 ft (10.9 m) long with a longest span of 31 ft (9.6 m) and a deck 18 ft wide.

Who owns Nfa A912 over Stoney Creek?

It is owned by the County Highway Agency.