US Bridges

US15/US401 over Gum Swamp

Good

Scotland County, North Carolina · 0.2 Mi. N. Jct. SR1101 · Structure no. 000000001650017

Built
2015
10 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
181 ft
3 main spans
Daily traffic
10,500
2022 count
Owner
State
State Highway Agency

About this bridge

US15/US401 over Gum Swamp is a prestressed concrete continuous stringer/multi-beam or girder carrying US15/US401 over Gum Swamp in Scotland County, North Carolina. It was built in 2015, so it is 10 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 10,500 vehicles a day, roughly 12% of them trucks, projected to reach 21,000 by 2040. The structure is 181 ft (55.1 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS15/US401
CrossesGum Swamp
Location0.2 Mi. N. Jct. SR1101
RouteU.S. Route 15
Coordinates34.71269, -79.51676
Functional classUrban Other Principal Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.9 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHL 93
Structure length181 ft (55.1 m)
Longest span58 ft (17.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2022)
Projected traffic21,000 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US15/US401 over Gum Swamp built?

It was built in 2015, making it 10 years old in 2025.

What condition is US15/US401 over Gum Swamp 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 January 2024.

How much traffic does US15/US401 over Gum Swamp carry?

About 10,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US15/US401 over Gum Swamp?

The structure is 181 ft (55.1 m) long with a longest span of 58 ft (17.6 m) and a deck 35 ft wide.

Who owns US15/US401 over Gum Swamp?

It is owned by the State Highway Agency.