US Bridges

S-15-26 over Ashepoo River

Fair

Colleton County, South Carolina · 22.5 MI S Waltb · Structure no. 000000000007342

Built
1980
45 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
620 ft
7 main spans
Daily traffic
475
2023 count
Owner
State
State Highway Agency

About this bridge

S-15-26 over Ashepoo River is a steel continuous stringer/multi-beam or girder carrying S-15-26 over Ashepoo River in Colleton County, South Carolina. It was built in 1980, so it is 45 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 475 vehicles a day, roughly 22% of them trucks, projected to reach 694 by 2043. The structure is 620 ft (189 m) long and 33 ft wide.

CarriesS-15-26
CrossesAshepoo River
Location22.5 MI S Waltb
RouteState Highway 26
Coordinates32.61247, -80.48114
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 15
Structure length620 ft (189 m)
Longest span120 ft (36.6 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2023)
Projected traffic694 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 S-15-26 over Ashepoo River built?

It was built in 1980, making it 45 years old in 2025.

What condition is S-15-26 over Ashepoo River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does S-15-26 over Ashepoo River carry?

About 475 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is S-15-26 over Ashepoo River?

The structure is 620 ft (189 m) long with a longest span of 120 ft (36.6 m) and a deck 33 ft wide.

Who owns S-15-26 over Ashepoo River?

It is owned by the State Highway Agency.