US Bridges

I-26 EB over Southern Railroad

Fair

Dorchester County, South Carolina · 8.1 MI NE ST George · Structure no. 000000000003255

Built
1960
65 years old, rebuilt 1985
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
153 ft
3 main spans
Daily traffic
23,550
2023 count
Owner
State
State Highway Agency

About this bridge

I-26 EB over Southern Railroad is a steel stringer/multi-beam or girder carrying I-26 EB over Southern Railroad in Dorchester County, South Carolina. It was built in 1960 and reconstructed in 1985, so it is 65 years old, older 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 23,550 vehicles a day, roughly 18% of them trucks, projected to reach 37,680 by 2043. The structure is 153 ft (46.6 m) long and 51 ft wide.

CarriesI-26 EB
CrossesSouthern Railroad
Location8.1 MI NE ST George
RouteInterstate 26
Coordinates33.23113, -80.44321
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span51 ft (15.5 m)
Deck width51 ft (15.5 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,550 (2023)
Projected traffic37,680 by 2043
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-26 EB over Southern Railroad built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1985.

What condition is I-26 EB over Southern Railroad 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 December 2024.

How much traffic does I-26 EB over Southern Railroad carry?

About 23,550 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I-26 EB over Southern Railroad?

The structure is 153 ft (46.6 m) long with a longest span of 51 ft (15.5 m) and a deck 51 ft wide.

Who owns I-26 EB over Southern Railroad?

It is owned by the State Highway Agency.