US Bridges

US 17 Alt over Fishburne Creek

Good

Dorchester County, South Carolina · 11.2MI SW Sumrvl · Structure no. 000000000000409

Built
1930
95 years old, rebuilt 1936
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
11,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 17 Alt over Fishburne Creek is a concrete culvert carrying US 17 Alt over Fishburne Creek in Dorchester County, South Carolina. It was built in 1930 and reconstructed in 1936, so it is 95 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 11,600 vehicles a day, roughly 10% of them trucks, projected to reach 18,444 by 2043. The structure is 34 ft (10.4 m) long and 39 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesUS 17 Alt
CrossesFishburne Creek
Location11.2MI SW Sumrvl
RouteU.S. Route 17
Coordinates32.93969, -80.33925
Functional classRural Minor 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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating23.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width39 ft (11.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,600 (2023)
Projected traffic18,444 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$137,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 17 Alt over Fishburne Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1936.

What condition is US 17 Alt over Fishburne 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 May 2024.

How much traffic does US 17 Alt over Fishburne Creek carry?

About 11,600 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 17 Alt over Fishburne Creek?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 39 ft wide.

Who owns US 17 Alt over Fishburne Creek?

It is owned by the State Highway Agency.