US Bridges

US 601 over Salkehatchie River

Fair

Colleton County, South Carolina · Hampton CO Line · Structure no. 000000000002701

Built
1958
67 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
248 ft
8 main spans
Daily traffic
1,150
2023 count
Owner
State
State Highway Agency

About this bridge

US 601 over Salkehatchie River is a concrete tee beam carrying US 601 over Salkehatchie River in Colleton County, South Carolina. It was built in 1958, so it is 67 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 1,150 vehicles a day, roughly 28% of them trucks, projected to reach 1,829 by 2043. The structure is 248 ft (75.6 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUS 601
CrossesSalkehatchie River
LocationHampton CO Line
RouteU.S. Route 601
CountyColleton County
StateSouth Carolina
Coordinates32.99115, -81.05254
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 protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 15
Structure length248 ft (75.6 m)
Longest span31 ft (9.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2023)
Projected traffic1,829 by 2043
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 601 over Salkehatchie River built?

It was built in 1958, making it 67 years old in 2025.

What condition is US 601 over Salkehatchie 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 January 2024.

How much traffic does US 601 over Salkehatchie River carry?

About 1,150 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is US 601 over Salkehatchie River?

The structure is 248 ft (75.6 m) long with a longest span of 31 ft (9.4 m) and a deck 31 ft wide.

Who owns US 601 over Salkehatchie River?

It is owned by the State Highway Agency.