US Bridges

Blue Ridge Parkway over U.S. Route 321

Good

Watauga County, North Carolina · 13.2 Miles from Nc Route · Structure no. 5140095P0000000

Built
1982
43 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
233 ft
2 main spans
Daily traffic
2,300
2023 count
Owner
Federal
National Park Service

About this bridge

Blue Ridge Parkway over U.S. Route 321 is a steel stringer/multi-beam or girder carrying Blue Ridge Parkway over U.S. Route 321 in Watauga County, North Carolina. It was built in 1982, so it is 43 years old, older than the North Carolina average of 38.7 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 2,300 vehicles a day, roughly 10% of them trucks, projected to reach 2,530 by 2043. The structure is 233 ft (71.1 m) long and 37 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

CarriesBlue Ridge Parkway
CrossesU.S. Route 321
Location13.2 Miles from Nc Route
RouteFederal Lands Road 0
Coordinates36.14767, -81.66253
Functional classRural Minor Collector

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.3 US tons
Inventory rating24.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length233 ft (71.1 m)
Longest span118 ft (35.9 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic2,530 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed32.9 mi (53 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Blue Ridge Parkway over U.S. Route 321 built?

It was built in 1982, making it 43 years old in 2025.

What condition is Blue Ridge Parkway over U.S. Route 321 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 July 2023.

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

About 2,300 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Blue Ridge Parkway over U.S. Route 321?

The structure is 233 ft (71.1 m) long with a longest span of 118 ft (35.9 m) and a deck 37 ft wide.

Who owns Blue Ridge Parkway over U.S. Route 321?

It is owned by the National Park Service.