US Bridges

US 17 over Clydesdale Creek

Good

Jasper County, South Carolina · 10 MI S Hardeeville · Structure no. 000000000009893

Built
1920
105 years old, rebuilt 2023
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
8,700
2024 count
Owner
State
State Highway Agency

About this bridge

US 17 over Clydesdale Creek is a concrete culvert carrying US 17 over Clydesdale Creek in Jasper County, South Carolina. It was built in 1920 and reconstructed in 2023, so it is 105 years old, older 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 8,700 vehicles a day, roughly 21% of them trucks, projected to reach 12,093 by 2044. The structure is 32 ft (9.7 m) long and 89 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 17
CrossesClydesdale Creek
Location10 MI S Hardeeville
RouteU.S. Route 17
Coordinates32.155, -81.05583
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.8 US tons
Inventory rating55.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span9 ft (2.7 m)
Deck width89 ft (27.1 m)
Roadway width87 ft (26.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,700 (2024)
Projected traffic12,093 by 2044
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 17 over Clydesdale Creek built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2023.

What condition is US 17 over Clydesdale 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 2023.

How much traffic does US 17 over Clydesdale Creek carry?

About 8,700 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is US 17 over Clydesdale Creek?

The structure is 32 ft (9.7 m) long with a longest span of 9 ft (2.7 m) and a deck 89 ft wide.

Who owns US 17 over Clydesdale Creek?

It is owned by the State Highway Agency.