US Bridges

I40 Wbl Ramp over I40 Bus & US421 Ebl

Fair

Forsyth County, North Carolina · 1.1 Mi. W. Jct. US15 · Structure no. 000000000670509

Built
1992
33 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
823 ft
6 main spans
Daily traffic
21,500
2022 count
Owner
State
State Highway Agency

About this bridge

I40 Wbl Ramp over I40 Bus & US421 Ebl is a steel continuous stringer/multi-beam or girder carrying I40 Wbl Ramp over I40 Bus & US421 Ebl 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 21,500 vehicles a day, roughly 16% of them trucks, projected to reach 43,000 by 2040. The structure is 823 ft (250.8 m) long and 43 ft wide.

CarriesI40 Wbl Ramp
CrossesI40 Bus & US421 Ebl
Location1.1 Mi. W. Jct. US15
RouteInterstate 40
Coordinates36.07247, -80.32476
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating62.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length823 ft (250.8 m)
Longest span176 ft (53.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,500 (2022)
Projected traffic43,000 by 2040
Trucks16%
Lanes on structure2
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 I40 Wbl Ramp over I40 Bus & US421 Ebl built?

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

What condition is I40 Wbl Ramp over I40 Bus & US421 Ebl in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does I40 Wbl Ramp over I40 Bus & US421 Ebl carry?

About 21,500 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I40 Wbl Ramp over I40 Bus & US421 Ebl?

The structure is 823 ft (250.8 m) long with a longest span of 176 ft (53.6 m) and a deck 43 ft wide.

Who owns I40 Wbl Ramp over I40 Bus & US421 Ebl?

It is owned by the State Highway Agency.