US Bridges

US 52 over Black River Swamp

Good

Williamsburg County, South Carolina · 2 MI S of Kingstree · Structure no. 000000000009544

Built
2000
25 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
360 ft
12 main spans
Daily traffic
6,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 52 over Black River Swamp is a concrete continuous slab carrying US 52 over Black River Swamp in Williamsburg County, South Carolina. It was built in 2000, so it is 25 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 6,100 vehicles a day, roughly 12% of them trucks, projected to reach 10,614 by 2043. The structure is 360 ft (109.7 m) long and 86 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 52
CrossesBlack River Swamp
Location2 MI S of Kingstree
RouteU.S. Route 52
Coordinates33.65766, -79.8719
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20 + Mod
Structure length360 ft (109.7 m)
Longest span30 ft (9.1 m)
Deck width86 ft (26.2 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2023)
Projected traffic10,614 by 2043
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 US 52 over Black River Swamp built?

It was built in 2000, making it 25 years old in 2025.

What condition is US 52 over Black River 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 2024.

How much traffic does US 52 over Black River Swamp carry?

About 6,100 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is US 52 over Black River Swamp?

The structure is 360 ft (109.7 m) long with a longest span of 30 ft (9.1 m) and a deck 86 ft wide.

Who owns US 52 over Black River Swamp?

It is owned by the State Highway Agency.