US Bridges

Foothills Parkway over U.S. Route 321

Fair

Sevier County, Tennessee · Over U.S. Route 321. · Structure no. 5460207P0000000

Built
1985
40 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
764
2022 count
Owner
Federal
National Park Service

About this bridge

Foothills Parkway over U.S. Route 321 is a prestressed concrete box beam or girders - single or spread carrying Foothills Parkway over U.S. Route 321 in Sevier County, Tennessee. It was built in 1985, so it is 40 years old, younger 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 764 vehicles a day, projected to reach 917 by 2042. The structure is 108 ft (32.9 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesFoothills Parkway
CrossesU.S. Route 321
LocationOver U.S. Route 321.
RouteFederal Lands Road 8
CountySevier County
StateTennessee
Coordinates35.72111, -83.64433
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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span102 ft (31.1 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic764 (2022)
Projected traffic917 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$45,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Foothills Parkway over U.S. Route 321 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Foothills Parkway over U.S. Route 321 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 June 2024.

How much traffic does Foothills Parkway over U.S. Route 321 carry?

About 764 vehicles per day (2022 count).

How long is Foothills Parkway over U.S. Route 321?

The structure is 108 ft (32.9 m) long with a longest span of 102 ft (31.1 m) and a deck 35 ft wide.

Who owns Foothills Parkway over U.S. Route 321?

It is owned by the National Park Service.