US Bridges

US29 US70 US220 over SR4240

Good

Guilford County, North Carolina · 1.23 Mi. N. Jct. I40 · Structure no. 000000000810306

Built
2004
21 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
158 ft
3 main spans
Daily traffic
64,500
2020 count
Owner
State
State Highway Agency

About this bridge

US29 US70 US220 over SR4240 is a steel continuous stringer/multi-beam or girder carrying US29 US70 US220 over SR4240 in Guilford County, North Carolina. It was built in 2004, so it is 21 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 64,500 vehicles a day, roughly 12% of them trucks, projected to reach 129,000 by 2040. The structure is 158 ft (48.1 m) long and 105 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS29 US70 US220
CrossesSR4240
Location1.23 Mi. N. Jct. I40
RouteU.S. Route 29
Coordinates36.06349, -79.76726
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionOctober 2023
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 rating98 US tons
Inventory rating58 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length158 ft (48.1 m)
Longest span88 ft (26.8 m)
Deck width105 ft (32.1 m)
Roadway width100 ft (30.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,500 (2020)
Projected traffic129,000 by 2040
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US29 US70 US220 over SR4240 built?

It was built in 2004, making it 21 years old in 2025.

What condition is US29 US70 US220 over SR4240 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 October 2023.

How much traffic does US29 US70 US220 over SR4240 carry?

About 64,500 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is US29 US70 US220 over SR4240?

The structure is 158 ft (48.1 m) long with a longest span of 88 ft (26.8 m) and a deck 105 ft wide.

Who owns US29 US70 US220 over SR4240?

It is owned by the State Highway Agency.