US Bridges

US 17 NB over Sampit River_& S-103

Good

Georgetown County, South Carolina · In Georgetown · Structure no. 000000000008159

Built
1988
37 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,992 ft
11 main spans
Daily traffic
12,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 17 NB over Sampit River_& S-103 is a steel continuous stringer/multi-beam or girder carrying US 17 NB over Sampit River_& S-103 in Georgetown County, South Carolina. It was built in 1988, so it is 37 years old, younger 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 12,600 vehicles a day, roughly 8% of them trucks, projected to reach 15,750 by 2043. The structure is 2,992 ft (912.1 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 17 NB
CrossesSampit River_& S-103
LocationIn Georgetown
RouteU.S. Route 17
Coordinates33.35799, -79.29422
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating34.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11 (+17 approach)
Design loadHS 20
Structure length2,992 ft (912.1 m)
Longest span180 ft (54.9 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,600 (2023)
Projected traffic15,750 by 2043
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 17 NB over Sampit River_& S-103 built?

It was built in 1988, making it 37 years old in 2025.

What condition is US 17 NB over Sampit River_& S-103 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 NB over Sampit River_& S-103 carry?

About 12,600 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 17 NB over Sampit River_& S-103?

The structure is 2,992 ft (912.1 m) long with a longest span of 180 ft (54.9 m) and a deck 39 ft wide.

Who owns US 17 NB over Sampit River_& S-103?

It is owned by the State Highway Agency.