US Bridges

US23 Nbl over US64 NC28

Fair

Macon County, North Carolina · 1.0 MI.S.JCT.SR1513 · Structure no. 000000001130048

Built
1972
53 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
271 ft
3 main spans
Daily traffic
25,000
2022 count
Owner
State
State Highway Agency

About this bridge

US23 Nbl over US64 NC28 is a steel stringer/multi-beam or girder carrying US23 Nbl over US64 NC28 in Macon County, North Carolina. It was built in 1972, so it is 53 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 25,000 vehicles a day, roughly 12% of them trucks, projected to reach 50,000 by 2040. The structure is 271 ft (82.6 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS23 Nbl
CrossesUS64 NC28
Location1.0 MI.S.JCT.SR1513
RouteU.S. Route 23
Coordinates35.17486, -83.35791
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length271 ft (82.6 m)
Longest span149 ft (45.4 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,000 (2022)
Projected traffic50,000 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US23 Nbl over US64 NC28 built?

It was built in 1972, making it 53 years old in 2025.

What condition is US23 Nbl over US64 NC28 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 November 2024.

How much traffic does US23 Nbl over US64 NC28 carry?

About 25,000 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US23 Nbl over US64 NC28?

The structure is 271 ft (82.6 m) long with a longest span of 149 ft (45.4 m) and a deck 42 ft wide.

Who owns US23 Nbl over US64 NC28?

It is owned by the State Highway Agency.