US Bridges

I-785 / I-840 over US29

GoodClosed to traffic

Guilford County, North Carolina · 0.75M. W. Jct. SR2835 · Structure no. 000000000811237

Built
2019
6 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
2 main spans
Daily traffic
6,500
2019 count
Owner
State
State Highway Agency

About this bridge

I-785 / I-840 over US29 is a steel continuous stringer/multi-beam or girder carrying I-785 / I-840 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: closed to all traffic.

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 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-785 / I-840
CrossesUS29
Location0.75M. W. Jct. SR2835
RouteInterstate 840
CountyGuilford County
StateNorth Carolina
Coordinates36.14314, -79.73514
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating76.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length280 ft (85.3 m)
Longest span167 ft (50.9 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-785 / I-840 over US29 built?

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

What condition is I-785 / I-840 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 January 2024.

How much traffic does I-785 / I-840 over US29 carry?

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

How long is I-785 / I-840 over US29?

The structure is 280 ft (85.3 m) long with a longest span of 167 ft (50.9 m) and a deck 45 ft wide.

Who owns I-785 / I-840 over US29?

It is owned by the State Highway Agency.