US Bridges

I40W over US70BUS

Good

Wake County, North Carolina · 1 Mi. E. Jct. NC50 · Structure no. 000000001830604

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
187 ft
2 main spans
Daily traffic
58,000
2022 count
Owner
State
State Highway Agency

About this bridge

I40W over US70BUS is a prestressed concrete stringer/multi-beam or girder carrying I40W over US70BUS 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 58,000 vehicles a day, roughly 16% of them trucks, projected to reach 116,000 by 2040. The structure is 187 ft (56.9 m) long and 103 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI40W
CrossesUS70BUS
Location1 Mi. E. Jct. NC50
RouteInterstate 4
Coordinates35.69452, -78.5747
Functional classUrban Principal Arterial - Interstate

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 rating91.9 US tons
Inventory rating70 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length187 ft (56.9 m)
Longest span97 ft (29.5 m)
Deck width103 ft (31.4 m)
Roadway width100 ft (30.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,000 (2022)
Projected traffic116,000 by 2040
Trucks16%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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 I40W over US70BUS built?

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

What condition is I40W over US70BUS 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 I40W over US70BUS carry?

About 58,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I40W over US70BUS?

The structure is 187 ft (56.9 m) long with a longest span of 97 ft (29.5 m) and a deck 103 ft wide.

Who owns I40W over US70BUS?

It is owned by the State Highway Agency.