US Bridges

I73 I840N over I40W I73/840 Ramp

Good

Guilford County, North Carolina · 0.61 Mi. S. Jct. SR1008 · Structure no. 000000000810821

Built
2007
18 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
399 ft
3 main spans
Daily traffic
30,500
2022 count
Owner
State
State Highway Agency

About this bridge

I73 I840N over I40W I73/840 Ramp is a steel continuous stringer/multi-beam or girder carrying I73 I840N over I40W I73/840 Ramp in Guilford County, North Carolina. It was built in 2007, so it is 18 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 30,500 vehicles a day, roughly 16% of them trucks, projected to reach 61,000 by 2040. The structure is 399 ft (121.6 m) long and 72 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI73 I840N
CrossesI40W I73/840 Ramp
Location0.61 Mi. S. Jct. SR1008
RouteInterstate 73
Coordinates36.06674, -79.91892
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 inspectionJune 2024
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 rating99 US tons
Inventory rating70 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length399 ft (121.6 m)
Longest span148 ft (45.1 m)
Deck width72 ft (22 m)
Roadway width69 ft (21.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,500 (2022)
Projected traffic61,000 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 I73 I840N over I40W I73/840 Ramp built?

It was built in 2007, making it 18 years old in 2025.

What condition is I73 I840N over I40W I73/840 Ramp 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 2024.

How much traffic does I73 I840N over I40W I73/840 Ramp carry?

About 30,500 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I73 I840N over I40W I73/840 Ramp?

The structure is 399 ft (121.6 m) long with a longest span of 148 ft (45.1 m) and a deck 72 ft wide.

Who owns I73 I840N over I40W I73/840 Ramp?

It is owned by the State Highway Agency.