US Bridges

NC8 over I85BUS. Loop US29 US70

Good

Davidson County, North Carolina · 0.5 Mi. N. Jct. US29/70 · Structure no. 000000000570027

Built
2018
7 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
150 ft
2 main spans
Daily traffic
19,500
2021 count
Owner
State
State Highway Agency

About this bridge

NC8 over I85BUS. Loop US29 US70 is a prestressed concrete stringer/multi-beam or girder carrying NC8 over I85BUS. Loop US29 US70 in Davidson County, North Carolina. It was built in 2018, so it is 7 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 19,500 vehicles a day, roughly 12% of them trucks, projected to reach 39,000 by 2040. The structure is 150 ft (45.7 m) long and 100 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC8
CrossesI85BUS. Loop US29 US70
Location0.5 Mi. N. Jct. US29/70
RouteState Highway 8
Coordinates35.83531, -80.2533
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 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 rating99 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length150 ft (45.7 m)
Longest span72 ft (21.9 m)
Deck width100 ft (30.4 m)
Roadway width92 ft (28.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,500 (2021)
Projected traffic39,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 NC8 over I85BUS. Loop US29 US70 built?

It was built in 2018, making it 7 years old in 2025.

What condition is NC8 over I85BUS. Loop US29 US70 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 July 2023.

How much traffic does NC8 over I85BUS. Loop US29 US70 carry?

About 19,500 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is NC8 over I85BUS. Loop US29 US70?

The structure is 150 ft (45.7 m) long with a longest span of 72 ft (21.9 m) and a deck 100 ft wide.

Who owns NC8 over I85BUS. Loop US29 US70?

It is owned by the State Highway Agency.