US Bridges

US 17 over Ashepoo River

Good

Colleton County, South Carolina · 6 1/2 MI S of Jacksonboro · Structure no. 000000000003841

Built
2013
12 years old
Condition
Good
inspected February 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
423 ft
7 main spans
Daily traffic
13,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 17 over Ashepoo River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 17 over Ashepoo River in Colleton County, South Carolina. It was built in 2013, so it is 12 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 13,600 vehicles a day, roughly 16% of them trucks, projected to reach 23,664 by 2043. The structure is 423 ft (129 m) long and 95 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

CarriesUS 17
CrossesAshepoo River
Location6 1/2 MI S of Jacksonboro
RouteU.S. Route 17
Coordinates32.74386, -80.5562
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2022
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length423 ft (129 m)
Longest span60 ft (18.4 m)
Deck width95 ft (29 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,600 (2023)
Projected traffic23,664 by 2043
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 17 over Ashepoo River built?

It was built in 2013, making it 12 years old in 2025.

What condition is US 17 over Ashepoo River 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 February 2022.

How much traffic does US 17 over Ashepoo River carry?

About 13,600 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is US 17 over Ashepoo River?

The structure is 423 ft (129 m) long with a longest span of 60 ft (18.4 m) and a deck 95 ft wide.

Who owns US 17 over Ashepoo River?

It is owned by the State Highway Agency.