US Bridges

S-34-64 over Pitch Pot Swamp

PoorPosted for load

Marion County, South Carolina · 4MI W Marion · Structure no. 000000000005121

Built
1967
58 years old
Condition
Poor
inspected May 2024
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
200
2023 count
Owner
State
State Highway Agency

About this bridge

S-34-64 over Pitch Pot Swamp is a concrete slab carrying S-34-64 over Pitch Pot Swamp in Marion County, South Carolina. It was built in 1967, so it is 58 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 7% of them trucks, projected to reach 292 by 2024. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-34-64
CrossesPitch Pot Swamp
Location4MI W Marion
RouteState Highway 64
Coordinates34.15583, -79.455
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating5 US tons
Inventory rating1.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic292 by 2024
Trucks7%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$77,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-34-64 over Pitch Pot Swamp built?

It was built in 1967, making it 58 years old in 2025.

What condition is S-34-64 over Pitch Pot Swamp in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does S-34-64 over Pitch Pot Swamp carry?

About 200 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S-34-64 over Pitch Pot Swamp?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-34-64 over Pitch Pot Swamp?

It is owned by the State Highway Agency.