US Bridges

I-85NBYP(FUT.I785) over US29

Good

Guilford County, North Carolina · 3.5 Mi. N. Jct. SR2770 · Structure no. 000000000811238

Built
2019
6 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
280 ft
2 main spans
Daily traffic
6,500
2019 count
Owner
State
State Highway Agency

About this bridge

I-85NBYP(FUT.I785) over US29 is a steel stringer/multi-beam or girder carrying I-85NBYP(FUT.I785) over US29 in Guilford County, North Carolina. It was built in 2019, so it is 6 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 6,500 vehicles a day, roughly 16% of them trucks, projected to reach 13,000 by 2040. The structure is 280 ft (85.3 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-85NBYP(FUT.I785)
CrossesUS29
Location3.5 Mi. N. Jct. SR2770
RouteInterstate 85
CountyGuilford County
StateNorth Carolina
Coordinates36.1432, -79.73503
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.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating75.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHL 93
Structure length280 ft (85.3 m)
Longest span167 ft (50.9 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic6,500 (2019)
Projected traffic13,000 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 I-85NBYP(FUT.I785) over US29 built?

It was built in 2019, making it 6 years old in 2025.

What condition is I-85NBYP(FUT.I785) over US29 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 August 2023.

How much traffic does I-85NBYP(FUT.I785) over US29 carry?

About 6,500 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is I-85NBYP(FUT.I785) over US29?

The structure is 280 ft (85.3 m) long with a longest span of 167 ft (50.9 m) and a deck 47 ft wide.

Who owns I-85NBYP(FUT.I785) over US29?

It is owned by the State Highway Agency.