US Bridges

I85S over US29/US70/I85BUS.LOOP

Fair

Guilford County, North Carolina · 1.4 Mi. S. Jct. SR1129 · Structure no. 000000000810144

Built
1981
44 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
231 ft
4 main spans
Daily traffic
33,000
2022 count
Owner
State
State Highway Agency

About this bridge

I85S over US29/US70/I85BUS.LOOP is a steel stringer/multi-beam or girder carrying I85S over US29/US70/I85BUS.LOOP in Guilford County, North Carolina. It was built in 1981, so it is 44 years old, older 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 33,000 vehicles a day, roughly 16% of them trucks, projected to reach 66,000 by 2040. The structure is 231 ft (70.4 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI85S
CrossesUS29/US70/I85BUS.LOOP
Location1.4 Mi. S. Jct. SR1129
RouteInterstate 85
CountyGuilford County
StateNorth Carolina
Coordinates35.98504, -79.88463
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating66.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length231 ft (70.4 m)
Longest span85 ft (25.9 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,000 (2022)
Projected traffic66,000 by 2040
Trucks16%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 I85S over US29/US70/I85BUS.LOOP built?

It was built in 1981, making it 44 years old in 2025.

What condition is I85S over US29/US70/I85BUS.LOOP 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 September 2024.

How much traffic does I85S over US29/US70/I85BUS.LOOP carry?

About 33,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I85S over US29/US70/I85BUS.LOOP?

The structure is 231 ft (70.4 m) long with a longest span of 85 ft (25.9 m) and a deck 59 ft wide.

Who owns I85S over US29/US70/I85BUS.LOOP?

It is owned by the State Highway Agency.