US Bridges

Nfa A702 over Buck Creek

Fair

Carter County, Tennessee · N of SR37-E of Roan Mtn. · Structure no. 100A7020001

Built
1989
36 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
710
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A702 over Buck Creek is a steel stringer/multi-beam or girder carrying Nfa A702 over Buck Creek in Carter County, Tennessee. It was built in 1989, so it is 36 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 5 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 710 vehicles a day, roughly 2% of them trucks, projected to reach 1,136 by 2041. The structure is 50 ft (15.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa A702
CrossesBuck Creek
LocationN of SR37-E of Roan Mtn.
RouteCounty Highway 702
CountyCarter County
StateTennessee
Coordinates36.1874, -82.03471
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length50 ft (15.2 m)
Longest span47 ft (14.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic710 (2020)
Projected traffic1,136 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$134,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A702 over Buck Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Nfa A702 over Buck 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 July 2023.

How much traffic does Nfa A702 over Buck Creek carry?

About 710 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A702 over Buck Creek?

The structure is 50 ft (15.2 m) long with a longest span of 47 ft (14.2 m) and a deck 27 ft wide.

Who owns Nfa A702 over Buck Creek?

It is owned by the County Highway Agency.