US Bridges

I85N over US158 Byp

Fair

Vance County, North Carolina · 0.6 MI S JCT SR1126 · Structure no. 000000001810001

Built
1969
56 years old, rebuilt 2008
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
255 ft
2 main spans
Daily traffic
19,250
2020 count
Owner
State
State Highway Agency

About this bridge

I85N over US158 Byp is a steel continuous stringer/multi-beam or girder carrying I85N over US158 Byp in Vance County, North Carolina. It was built in 1969 and reconstructed in 2008, so it is 56 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 19,250 vehicles a day, roughly 23% of them trucks, projected to reach 38,500 by 2040. The structure is 255 ft (77.7 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI85N
CrossesUS158 Byp
Location0.6 MI S JCT SR1126
RouteInterstate 85
CountyVance County
StateNorth Carolina
Coordinates36.32107, -78.50487
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.9 US tons
Inventory rating53.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length255 ft (77.7 m)
Longest span126 ft (38.4 m)
Deck width42 ft (12.8 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,250 (2020)
Projected traffic38,500 by 2040
Trucks23%
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 I85N over US158 Byp built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2008.

What condition is I85N over US158 Byp 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 December 2023.

How much traffic does I85N over US158 Byp carry?

About 19,250 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I85N over US158 Byp?

The structure is 255 ft (77.7 m) long with a longest span of 126 ft (38.4 m) and a deck 42 ft wide.

Who owns I85N over US158 Byp?

It is owned by the State Highway Agency.