US Bridges

US 601 over Lynches River

Fair

Lancaster County, South Carolina · Chesterfield CO Line · Structure no. 000000000004585

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
350 ft
5 main spans
Daily traffic
1,700
2023 count
Owner
State
State Highway Agency

About this bridge

US 601 over Lynches River is a prestressed concrete stringer/multi-beam or girder carrying US 601 over Lynches River in Lancaster County, South Carolina. It was built in 1965, so it is 60 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 1,700 vehicles a day, roughly 35% of them trucks, projected to reach 2,703 by 2043. The structure is 350 ft (106.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 601
CrossesLynches River
LocationChesterfield CO Line
RouteU.S. Route 601
CountyLancaster County
StateSouth Carolina
Coordinates34.69233, -80.47309
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length350 ft (106.7 m)
Longest span70 ft (21.3 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic2,703 by 2043
Trucks35%
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 US 601 over Lynches River built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 601 over Lynches River 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 US 601 over Lynches River carry?

About 1,700 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is US 601 over Lynches River?

The structure is 350 ft (106.7 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.

Who owns US 601 over Lynches River?

It is owned by the State Highway Agency.