US Bridges

S-23-564 over Gilder Creek

Fair

Greenville County, South Carolina · 1.3 MI NE Mauldin · Structure no. 000000000005070

Built
1967
58 years old, rebuilt 2017
Condition
Fair
inspected June 2023
Type
Channel Beam
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
5,700
2023 count
Owner
State
State Highway Agency

About this bridge

S-23-564 over Gilder Creek is a prestressed concrete channel beam carrying S-23-564 over Gilder Creek in Greenville County, South Carolina. It was built in 1967 and reconstructed in 2017, so it is 58 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 5,700 vehicles a day, roughly 3% of them trucks, projected to reach 8,721 by 2043. The structure is 30 ft (9.1 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-23-564
CrossesGilder Creek
Location1.3 MI NE Mauldin
RouteState Highway 564
Coordinates34.794, -82.29731
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating22.5 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadOther
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2023)
Projected traffic8,721 by 2043
Trucks3%
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

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$255,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-23-564 over Gilder Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2017.

What condition is S-23-564 over Gilder 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 June 2023.

How much traffic does S-23-564 over Gilder Creek carry?

About 5,700 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-23-564 over Gilder Creek?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 27 ft wide.

Who owns S-23-564 over Gilder Creek?

It is owned by the State Highway Agency.