US Bridges

Sc 64 WB over Salkehatchie River

Fair

Barnwell County, South Carolina · 1/2MI W of Barnwell · Structure no. 000000000001860

Built
1952
73 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
154 ft
5 main spans
Daily traffic
700
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 64 WB over Salkehatchie River is a concrete tee beam carrying Sc 64 WB over Salkehatchie River in Barnwell County, South Carolina. It was built in 1952, so it is 73 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 700 vehicles a day, roughly 8% of them trucks, projected to reach 1,113 by 2043. The structure is 154 ft (46.9 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSc 64 WB
CrossesSalkehatchie River
Location1/2MI W of Barnwell
RouteState Highway 64
CountyBarnwell County
StateSouth Carolina
Coordinates33.24072, -81.40766
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length154 ft (46.9 m)
Longest span32 ft (9.8 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2023)
Projected traffic1,113 by 2043
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$347,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 64 WB over Salkehatchie River built?

It was built in 1952, making it 73 years old in 2025.

What condition is Sc 64 WB 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 June 2024.

How much traffic does Sc 64 WB over Salkehatchie River carry?

About 700 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sc 64 WB over Salkehatchie River?

The structure is 154 ft (46.9 m) long with a longest span of 32 ft (9.8 m) and a deck 30 ft wide.

Who owns Sc 64 WB over Salkehatchie River?

It is owned by the State Highway Agency.