US Bridges

S-38-50 over Four Hole Swamp

Fair

Orangeburg County, South Carolina · 8 MI E Orangeburg · Structure no. 000000000008583

Built
1992
33 years old
Condition
Fair
inspected December 2024
Type
Slab
Prestressed Concrete
Length
210 ft
7 main spans
Daily traffic
800
2023 count
Owner
State
State Highway Agency

About this bridge

S-38-50 over Four Hole Swamp is a prestressed concrete slab carrying S-38-50 over Four Hole Swamp in Orangeburg County, South Carolina. It was built in 1992, so it is 33 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 800 vehicles a day, roughly 9% of them trucks, projected to reach 1,168 by 2043. The structure is 210 ft (64 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-38-50
CrossesFour Hole Swamp
Location8 MI E Orangeburg
RouteState Highway 50
Coordinates33.49042, -80.68004
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length210 ft (64 m)
Longest span30 ft (9.1 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic1,168 by 2043
Trucks9%
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

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-38-50 over Four Hole Swamp built?

It was built in 1992, making it 33 years old in 2025.

What condition is S-38-50 over Four Hole 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 December 2024.

How much traffic does S-38-50 over Four Hole Swamp carry?

About 800 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-38-50 over Four Hole Swamp?

The structure is 210 ft (64 m) long with a longest span of 30 ft (9.1 m) and a deck 38 ft wide.

Who owns S-38-50 over Four Hole Swamp?

It is owned by the State Highway Agency.