US Bridges

S-39-143 over Big Estatoe Creek

Fair

Pickens County, South Carolina · 10.0 MI NW Pickens · Structure no. 000000000007400

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
180 ft
3 main spans
Daily traffic
1,100
2023 count
Owner
State
State Highway Agency

About this bridge

S-39-143 over Big Estatoe Creek is a steel stringer/multi-beam or girder carrying S-39-143 over Big Estatoe Creek in Pickens County, South Carolina. It was built in 1980, so it is 45 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 1,100 vehicles a day, roughly 13% of them trucks, projected to reach 1,606 by 2043. The structure is 180 ft (54.9 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesS-39-143
CrossesBig Estatoe Creek
Location10.0 MI NW Pickens
RouteState Highway 143
CountyPickens County
StateSouth Carolina
Coordinates34.95799, -82.85293
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length180 ft (54.9 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,606 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-39-143 over Big Estatoe Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is S-39-143 over Big Estatoe 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 October 2024.

How much traffic does S-39-143 over Big Estatoe Creek carry?

About 1,100 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is S-39-143 over Big Estatoe Creek?

The structure is 180 ft (54.9 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns S-39-143 over Big Estatoe Creek?

It is owned by the State Highway Agency.