US Bridges

I540RAMP over I540 NS Con. B

Good

Wake County, North Carolina · 0.3 M. E. Jct. US1 · Structure no. 000000001831007

Built
2002
23 years old
Condition
Good
inspected August 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
138 ft
1 main span
Daily traffic
17,750
2019 count
Owner
State
State Highway Agency

About this bridge

I540RAMP over I540 NS Con. B is a steel stringer/multi-beam or girder carrying I540RAMP over I540 NS Con. B in Wake County, North Carolina. It was built in 2002, so it is 23 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 17,750 vehicles a day, roughly 16% of them trucks, projected to reach 35,500 by 2040. The structure is 138 ft (42 m) long and 29 ft wide.

CarriesI540RAMP
CrossesI540 NS Con. B
Location0.3 M. E. Jct. US1
RouteInterstate 540
Coordinates35.87375, -78.57159
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 inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length138 ft (42 m)
Longest span131 ft (39.9 m)
Deck width29 ft (8.7 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,750 (2019)
Projected traffic35,500 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I540RAMP over I540 NS Con. B built?

It was built in 2002, making it 23 years old in 2025.

What condition is I540RAMP over I540 NS Con. B 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 2021.

How much traffic does I540RAMP over I540 NS Con. B carry?

About 17,750 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is I540RAMP over I540 NS Con. B?

The structure is 138 ft (42 m) long with a longest span of 131 ft (39.9 m) and a deck 29 ft wide.

Who owns I540RAMP over I540 NS Con. B?

It is owned by the State Highway Agency.