US 17 over Marsh
GoodCharleston County, South Carolina · Charleston City Limit · Structure no. 000000000009823
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 1,086 ft
- 8 main spans
- Daily traffic
- 94,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 17 over Marsh is a prestressed concrete continuous stringer/multi-beam or girder carrying US 17 over Marsh in Charleston County, South Carolina. It was built in 2005, so it is 20 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 94,100 vehicles a day, roughly 3% of them trucks, projected to reach 139,268 by 2043. The structure is 1,086 ft (331 m) long and 117 ft wide.
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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 17 over Marsh built?
It was built in 2005, making it 20 years old in 2025.
What condition is US 17 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 May 2023.
How much traffic does US 17 over Marsh carry?
About 94,100 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is US 17 over Marsh?
The structure is 1,086 ft (331 m) long with a longest span of 138 ft (42.1 m) and a deck 117 ft wide.
Who owns US 17 over Marsh?
It is owned by the State Highway Agency.