US Bridges

Nfa A706 over Rock Creek

Poor

Claiborne County, Tennessee · .9 M SE of Clairfield · Structure no. 13006990005

Built
2006
19 years old
Condition
Poor
inspected June 2023
Type
Culvert
Steel
Length
33 ft
2 main spans
Daily traffic
218
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa A706 over Rock Creek is a steel culvert carrying Nfa A706 over Rock Creek in Claiborne County, Tennessee. It was built in 2006, so it is 19 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 218 vehicles a day, roughly 3% of them trucks, projected to reach 832 by 2040. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A706
CrossesRock Creek
Location.9 M SE of Clairfield
RouteCounty Highway 1304
Coordinates36.54683, -83.93895
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.3 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 15
Structure length33 ft (10.1 m)
Longest span8 ft (2.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic218 (2021)
Projected traffic832 by 2040
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A706 over Rock Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Nfa A706 over Rock Creek 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 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 33 ft (10.1 m) long with a longest span of 8 ft (2.3 m).

Who owns Nfa A706 over Rock Creek?

It is owned by the County Highway Agency.