US Bridges

S-26-1246 over Socastee Swamp

Good

Horry County, South Carolina · N of Myrtle Beach · Structure no. 000000000010086

Built
2004
21 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
150 ft
5 main spans
Daily traffic
250
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-1246 over Socastee Swamp is a concrete continuous slab carrying S-26-1246 over Socastee Swamp in Horry County, South Carolina. It was built in 2004, so it is 21 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2043. The structure is 150 ft (45.7 m) long and 78 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-26-1246
CrossesSocastee Swamp
LocationN of Myrtle Beach
RouteState Highway 1246
Coordinates33.73011, -78.94461
Functional classUrban Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width78 ft (23.8 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic320 by 2043
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-26-1246 over Socastee Swamp built?

It was built in 2004, making it 21 years old in 2025.

What condition is S-26-1246 over Socastee 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 July 2024.

How much traffic does S-26-1246 over Socastee Swamp carry?

About 250 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-26-1246 over Socastee Swamp?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 78 ft wide.

Who owns S-26-1246 over Socastee Swamp?

It is owned by the State Highway Agency.