US Bridges

Sc 41 over Maiden Down Swamp

Good

Marion County, South Carolina · 4 MI NW of Mullins · Structure no. 000000000000888

Built
2017
8 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
132 ft
3 main spans
Daily traffic
3,100
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 41 over Maiden Down Swamp is a concrete continuous stringer/multi-beam or girder carrying Sc 41 over Maiden Down Swamp in Marion County, South Carolina. It was built in 2017, so it is 8 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,100 vehicles a day, roughly 10% of them trucks, projected to reach 4,929 by 2043. The structure is 132 ft (40.1 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSc 41
CrossesMaiden Down Swamp
Location4 MI NW of Mullins
RouteState Highway 41
Coordinates34.25401, -79.26636
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating51 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length132 ft (40.1 m)
Longest span50 ft (15.2 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2023)
Projected traffic4,929 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Sc 41 over Maiden Down Swamp built?

It was built in 2017, making it 8 years old in 2025.

What condition is Sc 41 over Maiden Down Swamp in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Sc 41 over Maiden Down Swamp carry?

About 3,100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sc 41 over Maiden Down Swamp?

The structure is 132 ft (40.1 m) long with a longest span of 50 ft (15.2 m) and a deck 47 ft wide.

Who owns Sc 41 over Maiden Down Swamp?

It is owned by the State Highway Agency.