US Bridges

S-6-87 over Windy Hill Creek

Fair

Barnwell County, South Carolina · 3 MI NE Blackville · Structure no. 000000000006224

Built
1973
52 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
325
2023 count
Owner
State
State Highway Agency

About this bridge

S-6-87 over Windy Hill Creek is a concrete slab carrying S-6-87 over Windy Hill Creek in Barnwell County, South Carolina. It was built in 1973, so it is 52 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 325 vehicles a day, roughly 12% of them trucks, projected to reach 416 by 2043. The structure is 45 ft (13.7 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-6-87
CrossesWindy Hill Creek
Location3 MI NE Blackville
RouteState Highway 87
Coordinates33.39657, -81.26142
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2023)
Projected traffic416 by 2043
Trucks12%
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 S-6-87 over Windy Hill Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is S-6-87 over Windy Hill Creek 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 2023.

How much traffic does S-6-87 over Windy Hill Creek carry?

About 325 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is S-6-87 over Windy Hill Creek?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-6-87 over Windy Hill Creek?

It is owned by the State Highway Agency.