US Bridges

Access Road over Discharge Channel

Good

Marion County, Tennessee · Raccoon Mtn Pump Storage · Structure no. 580X1000001

Built
1977
48 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
200
2021 count
Owner
Federal
Tennessee Valley Authority

About this bridge

Access Road over Discharge Channel is a steel stringer/multi-beam or girder carrying Access Road over Discharge Channel in Marion County, Tennessee. It was built in 1977, so it is 48 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 430 by 2041. The structure is 90 ft (27.4 m) long and 34 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesAccess Road
CrossesDischarge Channel
LocationRaccoon Mtn Pump Storage
RouteFederal Lands Road 0
Coordinates35.06111, -85.41
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109.1 US tons
Inventory rating109.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span83 ft (25.3 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic430 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Discharge Channel built?

It was built in 1977, making it 48 years old in 2025.

What condition is Access Road over Discharge Channel in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Access Road over Discharge Channel carry?

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

How long is Access Road over Discharge Channel?

The structure is 90 ft (27.4 m) long with a longest span of 83 ft (25.3 m) and a deck 34 ft wide.

Who owns Access Road over Discharge Channel?

It is owned by the Tennessee Valley Authority.