US Bridges

Sc 63 over Salkehatchie River Swamp

Fair

Hampton County, South Carolina · 6.5 MI NE of Varnville · Structure no. 000000000000605

Built
2002
23 years old
Condition
Fair
inspected March 2024
Type
Slab
Prestressed Concrete
Length
640 ft
16 main spans
Daily traffic
2,800
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 63 over Salkehatchie River Swamp is a prestressed concrete slab carrying Sc 63 over Salkehatchie River Swamp in Hampton County, South Carolina. It was built in 2002, so it is 23 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,800 vehicles a day, roughly 21% of them trucks, projected to reach 4,452 by 2043. The structure is 640 ft (195.1 m) long and 45 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSc 63
CrossesSalkehatchie River Swamp
Location6.5 MI NE of Varnville
RouteState Highway 63
CountyHampton County
StateSouth Carolina
Coordinates32.9076, -80.99383
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans16
Design loadHL 93
Structure length640 ft (195.1 m)
Longest span40 ft (12.2 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2023)
Projected traffic4,452 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sc 63 over Salkehatchie River Swamp built?

It was built in 2002, making it 23 years old in 2025.

What condition is Sc 63 over Salkehatchie River Swamp in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Sc 63 over Salkehatchie River Swamp carry?

About 2,800 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is Sc 63 over Salkehatchie River Swamp?

The structure is 640 ft (195.1 m) long with a longest span of 40 ft (12.2 m) and a deck 45 ft wide.

Who owns Sc 63 over Salkehatchie River Swamp?

It is owned by the State Highway Agency.