US Bridges

Sc 41 over Maple Swamp (no. 1)

Fair

Marion County, South Carolina · 2 MI E of Gresham · Structure no. 000000000001535

Built
1948
77 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
210 ft
7 main spans
Daily traffic
2,200
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 41 over Maple Swamp (no. 1) is a concrete tee beam carrying Sc 41 over Maple Swamp (no. 1) in Marion County, South Carolina. It was built in 1948, so it is 77 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.

It carries about 2,200 vehicles a day, roughly 24% of them trucks, projected to reach 3,498 by 2043. The structure is 210 ft (64 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSc 41
CrossesMaple Swamp (no. 1)
Location2 MI E of Gresham
RouteState Highway 41
CountyMarion County
StateSouth Carolina
Coordinates33.92399, -79.39233
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating38.3 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length210 ft (64 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2023)
Projected traffic3,498 by 2043
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$504,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 41 over Maple Swamp (no. 1) built?

It was built in 1948, making it 77 years old in 2025.

What condition is Sc 41 over Maple Swamp (no. 1) 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 September 2024.

How much traffic does Sc 41 over Maple Swamp (no. 1) carry?

About 2,200 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Sc 41 over Maple Swamp (no. 1)?

The structure is 210 ft (64 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns Sc 41 over Maple Swamp (no. 1)?

It is owned by the State Highway Agency.