US Bridges

S-34-506 over Pitch Pot Swamp

FairPosted for load

Marion County, South Carolina · 1MI W Marion · Structure no. 000000000004616

Built
1965
60 years old, rebuilt 2007
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
1,750
2023 count
Owner
State
State Highway Agency

About this bridge

S-34-506 over Pitch Pot Swamp is a concrete slab carrying S-34-506 over Pitch Pot Swamp in Marion County, South Carolina. It was built in 1965 and reconstructed in 2007, so it is 60 years old, older 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. Its operating status is: posted for load restriction.

It carries about 1,750 vehicles a day, roughly 3% of them trucks, projected to reach 2,468 by 2043. The structure is 30 ft (9.1 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-34-506
CrossesPitch Pot Swamp
Location1MI W Marion
RouteState Highway 506
Coordinates34.17577, -79.42979
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 10
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2023)
Projected traffic2,468 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-34-506 over Pitch Pot Swamp built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2007.

What condition is S-34-506 over Pitch Pot 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 May 2024.

How much traffic does S-34-506 over Pitch Pot Swamp carry?

About 1,750 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-34-506 over Pitch Pot Swamp?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns S-34-506 over Pitch Pot Swamp?

It is owned by the State Highway Agency.