US Bridges

US401 over NC540

Good

Wake County, North Carolina · 0.75 Mi. S. Jct. SR1010 · Structure no. 000000001831549

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Slab
Prestressed Concrete
Length
206 ft
2 main spans
Daily traffic
39,000
2022 count
Owner
State
State Highway Agency

About this bridge

US401 over NC540 is a prestressed concrete slab carrying US401 over NC540 in Wake County, North Carolina. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39,000 vehicles a day, roughly 12% of them trucks, projected to reach 78,000 by 2040. The structure is 206 ft (62.7 m) long and 154 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS401
CrossesNC540
Location0.75 Mi. S. Jct. SR1010
RouteU.S. Route 401
Coordinates35.65536, -78.70539
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.9 US tons
Inventory rating51.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length206 ft (62.7 m)
Longest span100 ft (30.4 m)
Deck width154 ft (46.8 m)
Roadway width150 ft (45.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,000 (2022)
Projected traffic78,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 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 US401 over NC540 built?

It was built in 2020, making it 5 years old in 2025.

What condition is US401 over NC540 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 December 2024.

How much traffic does US401 over NC540 carry?

About 39,000 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US401 over NC540?

The structure is 206 ft (62.7 m) long with a longest span of 100 ft (30.4 m) and a deck 154 ft wide.

Who owns US401 over NC540?

It is owned by the State Highway Agency.