US Bridges

S-42-186 over Buck Creek

Fair

Spartanburg County, South Carolina · 7.0 MI NW Chesnee · Structure no. 000000000008100

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
850
2023 count
Owner
State
State Highway Agency

About this bridge

S-42-186 over Buck Creek is a prestressed concrete slab carrying S-42-186 over Buck Creek in Spartanburg County, South Carolina. It was built in 1987, so it is 38 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 850 vehicles a day, roughly 5% of them trucks, projected to reach 1,088 by 2043. The structure is 90 ft (27.4 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-42-186
CrossesBuck Creek
Location7.0 MI NW Chesnee
RouteState Highway 186
Coordinates35.1791, -81.97079
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating25.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2023)
Projected traffic1,088 by 2043
Trucks5%
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-42-186 over Buck Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is S-42-186 over Buck 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 September 2023.

How much traffic does S-42-186 over Buck Creek carry?

About 850 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-42-186 over Buck Creek?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns S-42-186 over Buck Creek?

It is owned by the State Highway Agency.