US Bridges

NC181 over Blue Ridge Parkway

Fair

Avery County, North Carolina · .2 MI.N.JCT.SR1521 · Structure no. 000000000110008

Built
1935
90 years old
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
86 ft
1 main span
Daily traffic
2,900
2021 count
Owner
State
State Highway Agency

About this bridge

NC181 over Blue Ridge Parkway is a concrete arch - deck carrying NC181 over Blue Ridge Parkway in Avery County, North Carolina. It was built in 1935, so it is 90 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 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 2,900 vehicles a day, roughly 8% of them trucks, projected to reach 5,800 by 2040. The structure is 86 ft (26.2 m) long and 38 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesNC181
CrossesBlue Ridge Parkway
Location.2 MI.N.JCT.SR1521
RouteState Highway 181
Coordinates36.00465, -81.89042
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.9 US tons
Inventory rating26.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length86 ft (26.2 m)
Longest span68 ft (20.7 m)
Deck width38 ft (11.5 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2021)
Projected traffic5,800 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 NC181 over Blue Ridge Parkway built?

It was built in 1935, making it 90 years old in 2025.

What condition is NC181 over Blue Ridge Parkway 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 2023.

How much traffic does NC181 over Blue Ridge Parkway carry?

About 2,900 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is NC181 over Blue Ridge Parkway?

The structure is 86 ft (26.2 m) long with a longest span of 68 ft (20.7 m) and a deck 38 ft wide.

Who owns NC181 over Blue Ridge Parkway?

It is owned by the State Highway Agency.