US Bridges

FAP 68 over North Potato Creek

Fair

Polk County, Tennessee · 1.2 Mi.South of Ducktown · Structure no. 70SR0680015

Built
1971
54 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
70 ft
5 main spans
Daily traffic
6,354
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 68 over North Potato Creek is a concrete continuous culvert carrying FAP 68 over North Potato Creek in Polk County, Tennessee. It was built in 1971, so it is 54 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.

It carries about 6,354 vehicles a day, roughly 10% of them trucks, projected to reach 10,166 by 2042. The structure is 70 ft (21.3 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesFAP 68
CrossesNorth Potato Creek
Location1.2 Mi.South of Ducktown
RouteState Highway 68
CountyPolk County
StateTennessee
Coordinates35.01518, -84.38271
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,354 (2021)
Projected traffic10,166 by 2042
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FAP 68 over North Potato Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is FAP 68 over North Potato 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 May 2024.

How much traffic does FAP 68 over North Potato Creek carry?

About 6,354 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FAP 68 over North Potato Creek?

The structure is 70 ft (21.3 m) long with a longest span of 12 ft (3.7 m).

Who owns FAP 68 over North Potato Creek?

It is owned by the State Highway Agency.