US Bridges

C-23-545 over Gilder Creek

Good

Greenville County, South Carolina · 4.7 MI NE Simpsonville · Structure no. 000000000008447

Built
1991
34 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
90 ft
2 main spans
Daily traffic
4,700
2023 count
Owner
County
County Highway Agency

About this bridge

C-23-545 over Gilder Creek is a prestressed concrete slab carrying C-23-545 over Gilder Creek in Greenville County, South Carolina. It was built in 1991, so it is 34 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,700 vehicles a day, roughly 5% of them trucks, projected to reach 6,016 by 2043. The structure is 90 ft (27.4 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesC-23-545
CrossesGilder Creek
Location4.7 MI NE Simpsonville
RouteCounty Highway 545
Coordinates34.78954, -82.20013
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating55.3 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span60 ft (18.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2023)
Projected traffic6,016 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$311,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-23-545 over Gilder Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is C-23-545 over Gilder 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 July 2024.

How much traffic does C-23-545 over Gilder Creek carry?

About 4,700 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-23-545 over Gilder Creek?

The structure is 90 ft (27.4 m) long with a longest span of 60 ft (18.3 m) and a deck 27 ft wide.

Who owns C-23-545 over Gilder Creek?

It is owned by the County Highway Agency.