US Bridges

US29 US601 Sbl over I85

Good

Cabarrus County, North Carolina · 0.4 Mi. N. Jct. US29A · Structure no. 000000000250089

Built
2017
8 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
200 ft
2 main spans
Daily traffic
13,500
2018 count
Owner
State
State Highway Agency

About this bridge

US29 US601 Sbl over I85 is a prestressed concrete continuous stringer/multi-beam or girder carrying US29 US601 Sbl over I85 in Cabarrus County, North Carolina. It was built in 2017, so it is 8 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 13,500 vehicles a day, roughly 12% of them trucks, projected to reach 27,000 by 2040. The structure is 200 ft (60.9 m) long and 62 ft wide.

CarriesUS29 US601 Sbl
CrossesI85
Location0.4 Mi. N. Jct. US29A
RouteU.S. Route 29
Coordinates35.44583, -80.60952
Functional classUrban Other Principal Arterial

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 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 rating85 US tons
Inventory rating63.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length200 ft (60.9 m)
Longest span97 ft (29.5 m)
Deck width62 ft (18.9 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2018)
Projected traffic27,000 by 2040
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 US601 Sbl over I85 built?

It was built in 2017, making it 8 years old in 2025.

What condition is US29 US601 Sbl over I85 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 2023.

How much traffic does US29 US601 Sbl over I85 carry?

About 13,500 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is US29 US601 Sbl over I85?

The structure is 200 ft (60.9 m) long with a longest span of 97 ft (29.5 m) and a deck 62 ft wide.

Who owns US29 US601 Sbl over I85?

It is owned by the State Highway Agency.