US Bridges

Sc 188 over Lake Keowee (cane Ck)

Poor

Oconee County, South Carolina · 4.0 MI N of Seneca · Structure no. 000000000005592

Built
1969
56 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
692 ft
6 main spans
Daily traffic
7,100
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 188 over Lake Keowee (cane Ck) is a steel continuous stringer/multi-beam or girder carrying Sc 188 over Lake Keowee (cane Ck) in Oconee County, South Carolina. It was built in 1969, so it is 56 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 7,100 vehicles a day, roughly 5% of them trucks, projected to reach 10,011 by 2043. The structure is 692 ft (210.9 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSc 188
CrossesLake Keowee (cane Ck)
Location4.0 MI N of Seneca
RouteState Highway 188
Coordinates34.73109, -82.97383
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.7 US tons
Inventory rating20 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length692 ft (210.9 m)
Longest span124 ft (37.8 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,100 (2023)
Projected traffic10,011 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 188 over Lake Keowee (cane Ck) built?

It was built in 1969, making it 56 years old in 2025.

What condition is Sc 188 over Lake Keowee (cane Ck) in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Sc 188 over Lake Keowee (cane Ck) carry?

About 7,100 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Sc 188 over Lake Keowee (cane Ck)?

The structure is 692 ft (210.9 m) long with a longest span of 124 ft (37.8 m) and a deck 35 ft wide.

Who owns Sc 188 over Lake Keowee (cane Ck)?

It is owned by the State Highway Agency.