US Bridges

Sc 341 over Lynches Lake (no. 3)

Fair

Florence County, South Carolina · 2MI W of Johnsonville · Structure no. 000000000002530

Built
1957
68 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
2,200
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 341 over Lynches Lake (no. 3) is a concrete tee beam carrying Sc 341 over Lynches Lake (no. 3) in Florence County, South Carolina. It was built in 1957, so it is 68 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 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 2,200 vehicles a day, roughly 7% of them trucks, projected to reach 3,212 by 2043. The structure is 150 ft (45.7 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesSc 341
CrossesLynches Lake (no. 3)
Location2MI W of Johnsonville
RouteState Highway 341
CountyFlorence County
StateSouth Carolina
Coordinates33.82194, -79.49361
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2023)
Projected traffic3,212 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 341 over Lynches Lake (no. 3) built?

It was built in 1957, making it 68 years old in 2025.

What condition is Sc 341 over Lynches Lake (no. 3) 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 341 over Lynches Lake (no. 3) carry?

About 2,200 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Sc 341 over Lynches Lake (no. 3)?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns Sc 341 over Lynches Lake (no. 3)?

It is owned by the State Highway Agency.