US Bridges

Nfa A680 over Roane Creek

FairPosted for load

Carroll County, Tennessee · 3.7 MI NW JCT SR22&HENDER · Structure no. 090A6800001

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Channel Beam
Concrete
Length
29 ft
1 main span
Daily traffic
160
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A680 over Roane Creek is a concrete channel beam carrying Nfa A680 over Roane Creek in Carroll County, Tennessee. It was built in 1975, so it is 50 years old, older 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. Its operating status is: posted for load restriction.

It carries about 160 vehicles a day, roughly 8% of them trucks, projected to reach 256 by 2040. The structure is 29 ft (8.8 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A680
CrossesRoane Creek
Location3.7 MI NW JCT SR22&HENDER
RouteCounty Highway 680
Coordinates35.87181, -88.40855
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 10
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2020)
Projected traffic256 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 A680 over Roane Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa A680 over Roane 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 A680 over Roane Creek carry?

About 160 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Nfa A680 over Roane Creek?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 25 ft wide.

Who owns Nfa A680 over Roane Creek?

It is owned by the County Highway Agency.