US Bridges

S-11-231 over Gilkey Creek

Good

Cherokee County, South Carolina · 9.6MI SE Gaffney · Structure no. 000000000006634

Built
2006
19 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
1 main span
Daily traffic
150
2023 count
Owner
State
State Highway Agency

About this bridge

S-11-231 over Gilkey Creek is a prestressed concrete stringer/multi-beam or girder carrying S-11-231 over Gilkey Creek in Cherokee County, South Carolina. It was built in 2006, so it is 19 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, roughly 8% of them trucks, projected to reach 209 by 2024. The structure is 120 ft (36.6 m) long and 37 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesS-11-231
CrossesGilkey Creek
Location9.6MI SE Gaffney
RouteState Highway 231
Coordinates34.96528, -81.55778
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.6 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span120 ft (36.6 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic209 by 2024
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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-11-231 over Gilkey Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is S-11-231 over Gilkey Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does S-11-231 over Gilkey Creek carry?

About 150 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is S-11-231 over Gilkey Creek?

The structure is 120 ft (36.6 m) long with a longest span of 120 ft (36.6 m) and a deck 37 ft wide.

Who owns S-11-231 over Gilkey Creek?

It is owned by the State Highway Agency.