US Bridges

US 601 over Coosawhatchie River

Fair

Hampton County, South Carolina · 2 1/2 MI S of Hampton · Structure no. 000000000009019

Built
1996
29 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
540 ft
18 main spans
Daily traffic
3,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 601 over Coosawhatchie River is a concrete slab carrying US 601 over Coosawhatchie River in Hampton County, South Carolina. It was built in 1996, so it is 29 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 3,100 vehicles a day, roughly 13% of them trucks, projected to reach 4,526 by 2043. The structure is 540 ft (164.6 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 601
CrossesCoosawhatchie River
Location2 1/2 MI S of Hampton
RouteU.S. Route 601
Coordinates32.83637, -81.13204
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans18
Design loadHS 20
Structure length540 ft (164.6 m)
Longest span30 ft (9.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2023)
Projected traffic4,526 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Coosawhatchie River built?

It was built in 1996, making it 29 years old in 2025.

What condition is US 601 over Coosawhatchie 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 March 2024.

How much traffic does US 601 over Coosawhatchie River carry?

About 3,100 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 601 over Coosawhatchie River?

The structure is 540 ft (164.6 m) long with a longest span of 30 ft (9.1 m) and a deck 47 ft wide.

Who owns US 601 over Coosawhatchie River?

It is owned by the State Highway Agency.