US Bridges

US421N over SR1006

Good

Randolph County, North Carolina · 1.2 Mi. S. Jct. NC49 · Structure no. 000000001510471

Built
1987
38 years old
Condition
Good
inspected September 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
251 ft
3 main spans
Daily traffic
6,500
2019 count
Owner
State
State Highway Agency

About this bridge

US421N over SR1006 is a steel stringer/multi-beam or girder carrying US421N over SR1006 in Randolph County, North Carolina. It was built in 1987, so it is 38 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 14% of them trucks, projected to reach 16,000 by 2040. The structure is 251 ft (76.5 m) long and 43 ft wide.

CarriesUS421N
CrossesSR1006
Location1.2 Mi. S. Jct. NC49
RouteU.S. Route 421
Coordinates35.8139, -79.55435
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.9 US tons
Inventory rating56 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length251 ft (76.5 m)
Longest span146 ft (44.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2019)
Projected traffic16,000 by 2040
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 US421N over SR1006 built?

It was built in 1987, making it 38 years old in 2025.

What condition is US421N over SR1006 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 September 2021.

How much traffic does US421N over SR1006 carry?

About 6,500 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is US421N over SR1006?

The structure is 251 ft (76.5 m) long with a longest span of 146 ft (44.5 m) and a deck 43 ft wide.

Who owns US421N over SR1006?

It is owned by the State Highway Agency.