US Bridges

US321 Nbl over SR1848

Good

Gaston County, North Carolina · 0.5 Mi. N. Jct. NC275 · Structure no. 000000000710340

Built
1986
39 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
98 ft
1 main span
Daily traffic
24,750
2022 count
Owner
State
State Highway Agency

About this bridge

US321 Nbl over SR1848 is a steel stringer/multi-beam or girder carrying US321 Nbl over SR1848 in Gaston County, North Carolina. It was built in 1986, so it is 39 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 24,750 vehicles a day, roughly 12% of them trucks, projected to reach 49,500 by 2040. The structure is 98 ft (29.8 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS321 Nbl
CrossesSR1848
Location0.5 Mi. N. Jct. NC275
RouteU.S. Route 321
Coordinates35.32345, -81.18714
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating92.9 US tons
Inventory rating56 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length98 ft (29.8 m)
Longest span95 ft (28.9 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,750 (2022)
Projected traffic49,500 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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 US321 Nbl over SR1848 built?

It was built in 1986, making it 39 years old in 2025.

What condition is US321 Nbl over SR1848 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 May 2024.

How much traffic does US321 Nbl over SR1848 carry?

About 24,750 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US321 Nbl over SR1848?

The structure is 98 ft (29.8 m) long with a longest span of 95 ft (28.9 m) and a deck 39 ft wide.

Who owns US321 Nbl over SR1848?

It is owned by the State Highway Agency.