US Bridges

S-26-15 over Withers Swash

Good

Horry County, South Carolina · Town of Myrtle Beach · Structure no. 000000000003330

Built
2018
7 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
69 ft
1 main span
Daily traffic
8,200
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-15 over Withers Swash is a concrete stringer/multi-beam or girder carrying S-26-15 over Withers Swash in Horry County, South Carolina. It was built in 2018, so it is 7 years old, younger than the South Carolina average of 48 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 8,200 vehicles a day, roughly 3% of them trucks, projected to reach 10,004 by 2043. The structure is 69 ft (21 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-26-15
CrossesWithers Swash
LocationTown of Myrtle Beach
RouteState Highway 15
Coordinates33.69082, -78.89343
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating31.1 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length69 ft (21 m)
Longest span69 ft (21 m)
Deck width44 ft (13.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,200 (2023)
Projected traffic10,004 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-26-15 over Withers Swash built?

It was built in 2018, making it 7 years old in 2025.

What condition is S-26-15 over Withers Swash 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 August 2024.

How much traffic does S-26-15 over Withers Swash carry?

About 8,200 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-26-15 over Withers Swash?

The structure is 69 ft (21 m) long with a longest span of 69 ft (21 m) and a deck 44 ft wide.

Who owns S-26-15 over Withers Swash?

It is owned by the State Highway Agency.