US Bridges

Sc 41 over Lynches River Swamp

Fair

Florence County, South Carolina · 1.5MI N of Johnsonville · Structure no. 000000000001467

Built
2007
18 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
150 ft
5 main spans
Daily traffic
6,100
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 41 over Lynches River Swamp is a concrete continuous slab carrying Sc 41 over Lynches River Swamp in Florence County, South Carolina. It was built in 2007, so it is 18 years old, younger 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.

It carries about 6,100 vehicles a day, roughly 15% of them trucks, projected to reach 9,699 by 2043. The structure is 150 ft (45.7 m) long and 75 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesSc 41
CrossesLynches River Swamp
Location1.5MI N of Johnsonville
RouteState Highway 41
CountyFlorence County
StateSouth Carolina
Coordinates33.85056, -79.44782
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width75 ft (23 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2023)
Projected traffic9,699 by 2043
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed11.2 mi (18 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 Lynches River Swamp built?

It was built in 2007, making it 18 years old in 2025.

What condition is Sc 41 over Lynches River 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 October 2023.

How much traffic does Sc 41 over Lynches River Swamp carry?

About 6,100 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Sc 41 over Lynches River Swamp?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 75 ft wide.

Who owns Sc 41 over Lynches River Swamp?

It is owned by the State Highway Agency.