US Bridges

NC115 over US421BYP

Fair

Wilkes County, North Carolina · 0.1 MI.S.JCT.SR2443 · Structure no. 000000001930052

Built
1967
58 years old, rebuilt 2013
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
184 ft
4 main spans
Daily traffic
8,100
2022 count
Owner
State
State Highway Agency

About this bridge

NC115 over US421BYP is a steel stringer/multi-beam or girder carrying NC115 over US421BYP in Wilkes County, North Carolina. It was built in 1967 and reconstructed in 2013, so it is 58 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 8,100 vehicles a day, roughly 6% of them trucks, projected to reach 16,200 by 2040. The structure is 184 ft (56 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNC115
CrossesUS421BYP
Location0.1 MI.S.JCT.SR2443
RouteState Highway 115
CountyWilkes County
StateNorth Carolina
Coordinates36.13683, -81.10318
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length184 ft (56 m)
Longest span63 ft (19.2 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,100 (2022)
Projected traffic16,200 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NC115 over US421BYP built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2013.

What condition is NC115 over US421BYP 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 2024.

How much traffic does NC115 over US421BYP carry?

About 8,100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is NC115 over US421BYP?

The structure is 184 ft (56 m) long with a longest span of 63 ft (19.2 m) and a deck 33 ft wide.

Who owns NC115 over US421BYP?

It is owned by the State Highway Agency.