I-526 WB over Marsh
FairBerkeley County, South Carolina · Near Charleston · Structure no. 000000000008229
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 390 ft
- 13 main spans
- Daily traffic
- 33,450
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-526 WB over Marsh is a concrete continuous slab carrying I-526 WB over Marsh in Berkeley County, South Carolina. It was built in 1989, so it is 36 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 6 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 33,450 vehicles a day, roughly 12% of them trucks, projected to reach 46,496 by 2043. The structure is 390 ft (118.9 m) long and 51 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-526 WB over Marsh built?
It was built in 1989, making it 36 years old in 2025.
What condition is I-526 WB over Marsh 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 October 2023.
How much traffic does I-526 WB over Marsh carry?
About 33,450 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is I-526 WB over Marsh?
The structure is 390 ft (118.9 m) long with a longest span of 30 ft (9.1 m) and a deck 51 ft wide.
Who owns I-526 WB over Marsh?
It is owned by the State Highway Agency.