US Bridges

Sc 183 over Keowee River

Fair

Pickens County, South Carolina · 4 MI W of Six Mile · Structure no. 000000000004395

Built
1964
61 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
330 ft
3 main spans
Daily traffic
8,500
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 183 over Keowee River is a prestressed concrete stringer/multi-beam or girder carrying Sc 183 over Keowee River in Pickens County, South Carolina. It was built in 1964, so it is 61 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 8,500 vehicles a day, roughly 11% of them trucks, projected to reach 13,515 by 2043. The structure is 330 ft (100.6 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesSc 183
CrossesKeowee River
Location4 MI W of Six Mile
RouteState Highway 183
CountyPickens County
StateSouth Carolina
Coordinates34.79179, -82.8835
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadH 20
Structure length330 ft (100.6 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2023)
Projected traffic13,515 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Keowee River built?

It was built in 1964, making it 61 years old in 2025.

What condition is Sc 183 over Keowee 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 April 2024.

How much traffic does Sc 183 over Keowee River carry?

About 8,500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Sc 183 over Keowee River?

The structure is 330 ft (100.6 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns Sc 183 over Keowee River?

It is owned by the State Highway Agency.