US Bridges

C-26-572 over Prince Mill Swamp

Good

Horry County, South Carolina · 7 MI NE of Aynor · Structure no. 000000000010707

Built
2021
4 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

C-26-572 over Prince Mill Swamp is a concrete culvert carrying C-26-572 over Prince Mill Swamp in Horry County, South Carolina. It was built in 2021, so it is 4 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2043. The structure is 26 ft (7.9 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesC-26-572
CrossesPrince Mill Swamp
Location7 MI NE of Aynor
RouteCounty Highway 572
Coordinates34.05473, -79.08976
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating42.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width36 ft (11 m)
Roadway width26 ft (7.9 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 closed3.1 mi (5 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-26-572 over Prince Mill Swamp built?

It was built in 2021, making it 4 years old in 2025.

What condition is C-26-572 over Prince Mill 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 2024.

How much traffic does C-26-572 over Prince Mill Swamp carry?

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

How long is C-26-572 over Prince Mill Swamp?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 36 ft wide.

Who owns C-26-572 over Prince Mill Swamp?

It is owned by the County Highway Agency.