US Bridges

US70 over I40

Fair

Guilford County, North Carolina · 0.6 MI E JCT SR4126 · Structure no. 000000000810220

Built
1988
37 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
301 ft
4 main spans
Daily traffic
53,000
2021 count
Owner
State
State Highway Agency

About this bridge

US70 over I40 is a steel stringer/multi-beam or girder carrying US70 over I40 in Guilford County, North Carolina. It was built in 1988, so it is 37 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 53,000 vehicles a day, roughly 12% of them trucks, projected to reach 106,000 by 2040. The structure is 301 ft (91.7 m) long and 102 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS70
CrossesI40
Location0.6 MI E JCT SR4126
RouteU.S. Route 70
CountyGuilford County
StateNorth Carolina
Coordinates36.05644, -79.8915
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.9 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length301 ft (91.7 m)
Longest span114 ft (34.7 m)
Deck width102 ft (31.2 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,000 (2021)
Projected traffic106,000 by 2040
Trucks12%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US70 over I40 built?

It was built in 1988, making it 37 years old in 2025.

What condition is US70 over I40 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 October 2024.

How much traffic does US70 over I40 carry?

About 53,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US70 over I40?

The structure is 301 ft (91.7 m) long with a longest span of 114 ft (34.7 m) and a deck 102 ft wide.

Who owns US70 over I40?

It is owned by the State Highway Agency.