US Bridges

Access Road over Ash Sluice Pipes

Fair

Roane County, Tennessee · Kingston Fossil Plant · Structure no. 730B2000001

Built
1975
50 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
200
2021 count
Owner
Federal
Tennessee Valley Authority

About this bridge

Access Road over Ash Sluice Pipes is a prestressed concrete box beam or girders - multiple carrying Access Road over Ash Sluice Pipes in Roane 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.

It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 200 by 2041. The structure is 48 ft (14.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAccess Road
CrossesAsh Sluice Pipes
LocationKingston Fossil Plant
RouteFederal Lands Road 0
Coordinates35.90056, -84.51833
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.9 US tons
Inventory rating30.3 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span47 ft (14.3 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic200 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTennessee Valley Authority
Maintained byTennessee Valley Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Access Road over Ash Sluice Pipes built?

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

What condition is Access Road over Ash Sluice Pipes 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 September 2023.

How much traffic does Access Road over Ash Sluice Pipes carry?

About 200 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Access Road over Ash Sluice Pipes?

The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.3 m) and a deck 28 ft wide.

Who owns Access Road over Ash Sluice Pipes?

It is owned by the Tennessee Valley Authority.