US Bridges

US 17 over Waccamaw River

Poor

Georgetown County, South Carolina · 1MI E of Georgetown · Structure no. 000000000004792

Built
1966
59 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,762 ft
13 main spans
Daily traffic
25,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 17 over Waccamaw River is a steel continuous stringer/multi-beam or girder carrying US 17 over Waccamaw River in Georgetown County, South Carolina. It was built in 1966, so it is 59 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 25,600 vehicles a day, roughly 6% of them trucks, projected to reach 76,544 by 2043. The structure is 2,762 ft (841.9 m) long and 63 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesUS 17
CrossesWaccamaw River
Location1MI E of Georgetown
RouteU.S. Route 17
Coordinates33.36552, -79.25181
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 rating61.1 US tons
Inventory rating33.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans13 (+14 approach)
Design loadHS 20
Structure length2,762 ft (841.9 m)
Longest span170 ft (51.8 m)
Deck width63 ft (19.1 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,600 (2023)
Projected traffic76,544 by 2043
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$18.1 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 17 over Waccamaw River built?

It was built in 1966, making it 59 years old in 2025.

What condition is US 17 over Waccamaw River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does US 17 over Waccamaw River carry?

About 25,600 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 17 over Waccamaw River?

The structure is 2,762 ft (841.9 m) long with a longest span of 170 ft (51.8 m) and a deck 63 ft wide.

Who owns US 17 over Waccamaw River?

It is owned by the State Highway Agency.