US Bridges

I74 US311W.RAMP over I74 US311W.COLLECTOR

Good

Guilford County, North Carolina · 0.20 Mi. N. Jct. US29/70 · Structure no. 000000000810855

Built
2005
20 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
236 ft
3 main spans
Daily traffic
850
2022 count
Owner
State
State Highway Agency

About this bridge

I74 US311W.RAMP over I74 US311W.COLLECTOR is a steel continuous stringer/multi-beam or girder carrying I74 US311W.RAMP over I74 US311W.COLLECTOR in Guilford County, North Carolina. It was built in 2005, so it is 20 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 850 vehicles a day, roughly 12% of them trucks, projected to reach 1,700 by 2040. The structure is 236 ft (71.9 m) long and 27 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesI74 US311W.RAMP
CrossesI74 US311W.COLLECTOR
Location0.20 Mi. N. Jct. US29/70
RouteInterstate 74
CountyGuilford County
StateNorth Carolina
Coordinates35.95164, -79.97464
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 inspectionSeptember 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 rating94.9 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length236 ft (71.9 m)
Longest span108 ft (32.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2022)
Projected traffic1,700 by 2040
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed2.5 mi (4 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 I74 US311W.RAMP over I74 US311W.COLLECTOR built?

It was built in 2005, making it 20 years old in 2025.

What condition is I74 US311W.RAMP over I74 US311W.COLLECTOR 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 September 2023.

How much traffic does I74 US311W.RAMP over I74 US311W.COLLECTOR carry?

About 850 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is I74 US311W.RAMP over I74 US311W.COLLECTOR?

The structure is 236 ft (71.9 m) long with a longest span of 108 ft (32.9 m) and a deck 27 ft wide.

Who owns I74 US311W.RAMP over I74 US311W.COLLECTOR?

It is owned by the State Highway Agency.