US Bridges

NFSR 424 over Nantahala River

FairPosted for load

Macon County, North Carolina · .3 Mi. S. Jct. Fs RD 67 · Structure no. 081111000003160

Built
1962
63 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
77 ft
3 main spans
Daily traffic
7
1981 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 424 over Nantahala River is a concrete slab carrying NFSR 424 over Nantahala River in Macon County, North Carolina. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 7 vehicles a day, projected to reach 10 by 2045. The structure is 77 ft (23.4 m) long and 26 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesNFSR 424
CrossesNantahala River
Location.3 Mi. S. Jct. Fs RD 67
RouteFederal Lands Road 424.3
Coordinates35.07451, -83.52969
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating14.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length77 ft (23.4 m)
Longest span26 ft (7.9 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7 (1981)
Projected traffic10 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NFSR 424 over Nantahala River built?

It was built in 1962, making it 63 years old in 2025.

What condition is NFSR 424 over Nantahala River 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 July 2024.

How much traffic does NFSR 424 over Nantahala River carry?

About 7 vehicles per day (1981 count).

How long is NFSR 424 over Nantahala River?

The structure is 77 ft (23.4 m) long with a longest span of 26 ft (7.9 m) and a deck 26 ft wide.

Who owns NFSR 424 over Nantahala River?

It is owned by the U.S. Forest Service.