US Bridges

S-34-41 over Maiden Down Swamp

FairPosted for load

Marion County, South Carolina · 3MI E Marion · Structure no. 000000000005120

Built
1967
58 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
3,300
2023 count
Owner
State
State Highway Agency

About this bridge

S-34-41 over Maiden Down Swamp is a concrete slab carrying S-34-41 over Maiden Down 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 fair condition with a lowest component rating of 5 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 3,300 vehicles a day, roughly 5% of them trucks, projected to reach 4,818 by 2043. The structure is 30 ft (9.1 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesS-34-41
CrossesMaiden Down Swamp
Location3MI E Marion
RouteState Highway 41
Coordinates34.19821, -79.30098
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating16.8 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 traffic3,300 (2023)
Projected traffic4,818 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$236,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-34-41 over Maiden Down Swamp built?

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

What condition is S-34-41 over Maiden Down 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-34-41 over Maiden Down Swamp carry?

About 3,300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-34-41 over Maiden Down 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-34-41 over Maiden Down Swamp?

It is owned by the State Highway Agency.