US Bridges

S-26-99 over Dawsey Swamp

Good

Horry County, South Carolina · 1 MI N Galivants Ferry · Structure no. 000000000008751

Built
1994
31 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
500
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-99 over Dawsey Swamp is a concrete continuous slab carrying S-26-99 over Dawsey Swamp in Horry County, South Carolina. It was built in 1994, so it is 31 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 500 vehicles a day, roughly 7% of them trucks, projected to reach 730 by 2043. The structure is 90 ft (27.4 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-26-99
CrossesDawsey Swamp
Location1 MI N Galivants Ferry
RouteState Highway 99
Coordinates34.05787, -79.23894
Functional classRural Major Collector

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic730 by 2043
Trucks7%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-26-99 over Dawsey Swamp built?

It was built in 1994, making it 31 years old in 2025.

What condition is S-26-99 over Dawsey 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 2023.

How much traffic does S-26-99 over Dawsey Swamp carry?

About 500 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S-26-99 over Dawsey Swamp?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns S-26-99 over Dawsey Swamp?

It is owned by the State Highway Agency.