US Bridges

Sc 183 over Coneross Creek

Fair

Oconee County, South Carolina · 3.0 MI N of Westminster · Structure no. 000000000002808

Built
1958
67 years old, rebuilt 1976
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
228 ft
4 main spans
Daily traffic
3,000
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 183 over Coneross Creek is a concrete tee beam carrying Sc 183 over Coneross Creek in Oconee County, South Carolina. It was built in 1958 and reconstructed in 1976, so it is 67 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 3,000 vehicles a day, roughly 7% of them trucks, projected to reach 4,380 by 2043. The structure is 228 ft (69.5 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSc 183
CrossesConeross Creek
Location3.0 MI N of Westminster
RouteState Highway 183
Coordinates34.70689, -83.07301
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length228 ft (69.5 m)
Longest span57 ft (17.4 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2023)
Projected traffic4,380 by 2043
Trucks7%
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 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 Sc 183 over Coneross Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1976.

What condition is Sc 183 over Coneross 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 May 2024.

How much traffic does Sc 183 over Coneross Creek carry?

About 3,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Sc 183 over Coneross Creek?

The structure is 228 ft (69.5 m) long with a longest span of 57 ft (17.4 m) and a deck 48 ft wide.

Who owns Sc 183 over Coneross Creek?

It is owned by the State Highway Agency.