US Bridges

US 17 Alt over Spring Gulley

Good

Georgetown County, South Carolina · 5.5 MI W of Georgetown · Structure no. 000000000002956

Built
1920
105 years old, rebuilt 1985
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
12,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 17 Alt over Spring Gulley is a concrete continuous culvert carrying US 17 Alt over Spring Gulley in Georgetown County, South Carolina. It was built in 1920 and reconstructed in 1985, 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 12,000 vehicles a day, roughly 11% of them trucks, projected to reach 20,880 by 2043. The structure is 23 ft (6.9 m) long and 124 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 17 Alt
CrossesSpring Gulley
Location5.5 MI W of Georgetown
RouteU.S. Route 17
Coordinates33.38484, -79.41341
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width124 ft (37.8 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2023)
Projected traffic20,880 by 2043
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$67,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 17 Alt over Spring Gulley built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1985.

What condition is US 17 Alt over Spring Gulley 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 Spring Gulley carry?

About 12,000 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 17 Alt over Spring Gulley?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m) and a deck 124 ft wide.

Who owns US 17 Alt over Spring Gulley?

It is owned by the State Highway Agency.