US Bridges

S-13-42 over Lynches River

Poor

Chesterfield County, South Carolina · Kershaw CO LN · Structure no. 000000000006966

Built
1977
48 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
310 ft
1 main span
Daily traffic
850
2023 count
Owner
State
State Highway Agency

About this bridge

S-13-42 over Lynches River is a prestressed concrete stringer/multi-beam or girder carrying S-13-42 over Lynches River in Chesterfield County, South Carolina. It was built in 1977, so it is 48 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 850 vehicles a day, roughly 14% of them trucks, projected to reach 1,241 by 2043. The structure is 310 ft (94.5 m) long and 33 ft wide.

CarriesS-13-42
CrossesLynches River
LocationKershaw CO LN
RouteState Highway 42
Coordinates34.60837, -80.4044
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+8 approach)
Design loadHS 15
Structure length310 ft (94.5 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2023)
Projected traffic1,241 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 S-13-42 over Lynches River built?

It was built in 1977, making it 48 years old in 2025.

What condition is S-13-42 over Lynches River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does S-13-42 over Lynches River carry?

About 850 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is S-13-42 over Lynches River?

The structure is 310 ft (94.5 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns S-13-42 over Lynches River?

It is owned by the State Highway Agency.