US Bridges

US421 NC87 Sbl Col over US1 US15/501 NC87 Bus

Good

Lee County, North Carolina · 0.45 MI N JCT US1BUS · Structure no. 000000001050118

Built
2007
18 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
207 ft
2 main spans
Daily traffic
16,750
2022 count
Owner
State
State Highway Agency

About this bridge

US421 NC87 Sbl Col over US1 US15/501 NC87 Bus is a prestressed concrete continuous stringer/multi-beam or girder carrying US421 NC87 Sbl Col over US1 US15/501 NC87 Bus in Lee County, North Carolina. It was built in 2007, so it is 18 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 16,750 vehicles a day, roughly 12% of them trucks, projected to reach 33,500 by 2040. The structure is 207 ft (63 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS421 NC87 Sbl Col
CrossesUS1 US15/501 NC87 Bus
Location0.45 MI N JCT US1BUS
RouteU.S. Route 421
Coordinates35.51089, -79.18797
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating59 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length207 ft (63 m)
Longest span101 ft (30.7 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,750 (2022)
Projected traffic33,500 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
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 US421 NC87 Sbl Col over US1 US15/501 NC87 Bus built?

It was built in 2007, making it 18 years old in 2025.

What condition is US421 NC87 Sbl Col over US1 US15/501 NC87 Bus 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 October 2024.

How much traffic does US421 NC87 Sbl Col over US1 US15/501 NC87 Bus carry?

About 16,750 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US421 NC87 Sbl Col over US1 US15/501 NC87 Bus?

The structure is 207 ft (63 m) long with a longest span of 101 ft (30.7 m) and a deck 40 ft wide.

Who owns US421 NC87 Sbl Col over US1 US15/501 NC87 Bus?

It is owned by the State Highway Agency.