US Bridges

S-26-19 over Lake Swamp

Fair

Horry County, South Carolina · 9 MI NE Aynor · Structure no. 000000000007572

Built
1982
43 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
90 ft
6 main spans
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-19 over Lake Swamp is a concrete slab carrying S-26-19 over Lake Swamp in Horry County, South Carolina. It was built in 1982, so it is 43 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,600 vehicles a day, roughly 9% of them trucks, projected to reach 2,336 by 2043. The structure is 90 ft (27.4 m) long and 33 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesS-26-19
CrossesLake Swamp
Location9 MI NE Aynor
RouteState Highway 19
Coordinates34.07399, -79.063
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length90 ft (27.4 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic2,336 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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-26-19 over Lake Swamp built?

It was built in 1982, making it 43 years old in 2025.

What condition is S-26-19 over Lake Swamp in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does S-26-19 over Lake Swamp carry?

About 1,600 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-26-19 over Lake Swamp?

The structure is 90 ft (27.4 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-26-19 over Lake Swamp?

It is owned by the State Highway Agency.