US Bridges

S-26-105 over Waccamaw River

Good

Horry County, South Carolina · 5 MI NE Hickory Grove · Structure no. 000000000009439

Built
1999
26 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
510 ft
17 main spans
Daily traffic
3,200
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-105 over Waccamaw River is a concrete continuous slab carrying S-26-105 over Waccamaw River in Horry County, South Carolina. It was built in 1999, so it is 26 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 3,200 vehicles a day, roughly 5% of them trucks, projected to reach 4,096 by 2043. The structure is 510 ft (155.4 m) long and 35 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesS-26-105
CrossesWaccamaw River
Location5 MI NE Hickory Grove
RouteState Highway 105
Coordinates33.85085, -78.8975
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans17
Design loadHS 25 or greater
Structure length510 ft (155.4 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2023)
Projected traffic4,096 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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-26-105 over Waccamaw River built?

It was built in 1999, making it 26 years old in 2025.

What condition is S-26-105 over Waccamaw River 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 June 2023.

How much traffic does S-26-105 over Waccamaw River carry?

About 3,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-26-105 over Waccamaw River?

The structure is 510 ft (155.4 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns S-26-105 over Waccamaw River?

It is owned by the State Highway Agency.