S-11 over Marsh
GoodCharleston County, South Carolina · 1.5 MI SE of N Charleston · Structure no. 000000000010629
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 1,041 ft
- 27 main spans
- Daily traffic
- 5,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-11 over Marsh is a concrete continuous slab carrying S-11 over Marsh in Charleston County, South Carolina. It was built in 2021, so it is 4 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 5,600 vehicles a day, roughly 6% of them trucks, projected to reach 7,672 by 2043. The structure is 1,041 ft (317.3 m) long and 88 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-11 over Marsh built?
It was built in 2021, making it 4 years old in 2025.
What condition is S-11 over Marsh 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 August 2023.
How much traffic does S-11 over Marsh carry?
About 5,600 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is S-11 over Marsh?
The structure is 1,041 ft (317.3 m) long with a longest span of 40 ft (12.2 m) and a deck 88 ft wide.
Who owns S-11 over Marsh?
It is owned by the State Highway Agency.