US Bridges

Nfa A706 over Rock Creek

Fair

Claiborne County, Tennessee · 1.6 M SE of Clairfield · Structure no. 13006990003

Built
1992
33 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
218
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa A706 over Rock Creek is a concrete continuous culvert carrying Nfa A706 over Rock Creek in Claiborne County, Tennessee. It was built in 1992, so it is 33 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 218 vehicles a day, roughly 3% of them trucks, projected to reach 851 by 2041. The structure is 68 ft (20.7 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 A706
CrossesRock Creek
Location1.6 M SE of Clairfield
RouteCounty Highway 1304
CountyClaiborne County
StateTennessee
Coordinates36.5407, -83.92963
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span21 ft (6.4 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic218 (2021)
Projected traffic851 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$100,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A706 over Rock Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa A706 over Rock 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 June 2023.

How much traffic does Nfa A706 over Rock Creek carry?

About 218 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa A706 over Rock Creek?

The structure is 68 ft (20.7 m) long with a longest span of 21 ft (6.4 m) and a deck 30 ft wide.

Who owns Nfa A706 over Rock Creek?

It is owned by the County Highway Agency.