US Bridges

C-26-2464 over Crabtree Swamp

Good

Horry County, South Carolina · 3.0 MI NW of Conway · Structure no. 000000000008565

Built
2010
15 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

C-26-2464 over Crabtree Swamp is a prestressed concrete slab carrying C-26-2464 over Crabtree Swamp in Horry County, South Carolina. It was built in 2010, so it is 15 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2043. The structure is 50 ft (15.2 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesC-26-2464
CrossesCrabtree Swamp
Location3.0 MI NW of Conway
RouteCounty Highway 2464
Coordinates33.86306, -79.10028
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic320 by 2043
Trucks5%
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

OwnerCounty Highway Agency
Maintained byCounty 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 C-26-2464 over Crabtree Swamp built?

It was built in 2010, making it 15 years old in 2025.

What condition is C-26-2464 over Crabtree 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 November 2023.

How much traffic does C-26-2464 over Crabtree Swamp carry?

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

How long is C-26-2464 over Crabtree Swamp?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 33 ft wide.

Who owns C-26-2464 over Crabtree Swamp?

It is owned by the County Highway Agency.