US Bridges

I540 Wbl Ramp over US1 Ramp a

Good

Wake County, North Carolina · .3 Mi. E. Jct. US1 & I540 · Structure no. 000000001831006

Built
2001
24 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
102 ft
1 main span
Daily traffic
2,000
2021 count
Owner
State
State Highway Agency

About this bridge

I540 Wbl Ramp over US1 Ramp a is a steel stringer/multi-beam or girder carrying I540 Wbl Ramp over US1 Ramp a in Wake County, North Carolina. It was built in 2001, so it is 24 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 2,000 vehicles a day, roughly 16% of them trucks, projected to reach 4,000 by 2040. The structure is 102 ft (31 m) long and 29 ft wide.

CarriesI540 Wbl Ramp
CrossesUS1 Ramp a
Location.3 Mi. E. Jct. US1 & I540
RouteInterstate 540
Coordinates35.87488, -78.57188
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
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 (+2 approach)
Design loadHS 20 + Mod
Structure length102 ft (31 m)
Longest span95 ft (28.9 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2021)
Projected traffic4,000 by 2040
Trucks16%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 I540 Wbl Ramp over US1 Ramp a built?

It was built in 2001, making it 24 years old in 2025.

What condition is I540 Wbl Ramp over US1 Ramp a 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 June 2023.

How much traffic does I540 Wbl Ramp over US1 Ramp a carry?

About 2,000 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is I540 Wbl Ramp over US1 Ramp a?

The structure is 102 ft (31 m) long with a longest span of 95 ft (28.9 m) and a deck 29 ft wide.

Who owns I540 Wbl Ramp over US1 Ramp a?

It is owned by the State Highway Agency.