US Bridges

US421N over NC24

Good

Sampson County, North Carolina · 1.2 Mi. N. Jct. SR1227 · Structure no. 000000001630040

Built
2021
4 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
159 ft
3 main spans
Daily traffic
7,750
2022 count
Owner
State
State Highway Agency

About this bridge

US421N over NC24 is a prestressed concrete stringer/multi-beam or girder carrying US421N over NC24 in Sampson County, North Carolina. It was built in 2021, so it is 4 years old, younger 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 7,750 vehicles a day, roughly 12% of them trucks, projected to reach 15,500 by 2040. The structure is 159 ft (48.4 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS421N
CrossesNC24
Location1.2 Mi. N. Jct. SR1227
RouteU.S. Route 421
CountySampson County
StateNorth Carolina
Coordinates34.99518, -78.33739
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 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 rating81.9 US tons
Inventory rating62.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length159 ft (48.4 m)
Longest span92 ft (28 m)
Deck width41 ft (12.4 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,750 (2022)
Projected traffic15,500 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
Strategic Highway NetworkNon-Interstate STRAHNET route

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 US421N over NC24 built?

It was built in 2021, making it 4 years old in 2025.

What condition is US421N over NC24 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 February 2024.

How much traffic does US421N over NC24 carry?

About 7,750 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US421N over NC24?

The structure is 159 ft (48.4 m) long with a longest span of 92 ft (28 m) and a deck 41 ft wide.

Who owns US421N over NC24?

It is owned by the State Highway Agency.