US Bridges

S-26-106 over Crab Tree Swamp

Good

Horry County, South Carolina · City of Conway · Structure no. 000000000002375

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
1,050
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-106 over Crab Tree Swamp is a prestressed concrete slab carrying S-26-106 over Crab Tree Swamp in Horry County, South Carolina. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,050 vehicles a day, roughly 2% of them trucks, projected to reach 956 by 2043. The structure is 100 ft (30.5 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-26-106
CrossesCrab Tree Swamp
LocationCity of Conway
RouteState Highway 106
Coordinates33.86079, -79.04104
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating32.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span60 ft (18.3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2023)
Projected traffic956 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-26-106 over Crab Tree Swamp built?

It was built in 2016, making it 9 years old in 2025.

What condition is S-26-106 over Crab Tree 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 June 2023.

How much traffic does S-26-106 over Crab Tree Swamp carry?

About 1,050 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S-26-106 over Crab Tree Swamp?

The structure is 100 ft (30.5 m) long with a longest span of 60 ft (18.3 m) and a deck 36 ft wide.

Who owns S-26-106 over Crab Tree Swamp?

It is owned by the State Highway Agency.