US Bridges

I40 Wbl over NC150 Ramps

Good

Forsyth County, North Carolina · 0.3 Mi. W. Jct. NC150 · Structure no. 000000000670488

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
177 ft
3 main spans
Daily traffic
58,000
2019 count
Owner
State
State Highway Agency

About this bridge

I40 Wbl over NC150 Ramps is a steel stringer/multi-beam or girder carrying I40 Wbl over NC150 Ramps in Forsyth County, North Carolina. It was built in 1992, so it is 33 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 58,000 vehicles a day, roughly 16% of them trucks, projected to reach 116,000 by 2040. The structure is 177 ft (53.9 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI40 Wbl
CrossesNC150 Ramps
Location0.3 Mi. W. Jct. NC150
RouteInterstate 40
Coordinates36.06471, -80.26297
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.9 US tons
Inventory rating54.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length177 ft (53.9 m)
Longest span79 ft (24 m)
Deck width67 ft (20.3 m)
Roadway width64 ft (19.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,000 (2019)
Projected traffic116,000 by 2040
Trucks16%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 I40 Wbl over NC150 Ramps built?

It was built in 1992, making it 33 years old in 2025.

What condition is I40 Wbl over NC150 Ramps 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 August 2024.

How much traffic does I40 Wbl over NC150 Ramps carry?

About 58,000 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is I40 Wbl over NC150 Ramps?

The structure is 177 ft (53.9 m) long with a longest span of 79 ft (24 m) and a deck 67 ft wide.

Who owns I40 Wbl over NC150 Ramps?

It is owned by the State Highway Agency.