US 17 Alt over Poplar Branch
GoodBerkeley County, South Carolina · 8.6MI SW Moncks Crn · Structure no. 000000000000710
- Built
- 1936
- 89 years old, rebuilt 2001
- Condition
- Good
- inspected October 2023
- Type
- Culvert
- Concrete
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 23,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 17 Alt over Poplar Branch is a concrete culvert carrying US 17 Alt over Poplar Branch in Berkeley County, South Carolina. It was built in 1936 and reconstructed in 2001, so it is 89 years old, older 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 23,300 vehicles a day, roughly 6% of them trucks, projected to reach 33,319 by 2043. The structure is 23 ft (7 m) long and 101 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 17 Alt over Poplar Branch built?
It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2001.
What condition is US 17 Alt over Poplar Branch 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 October 2023.
How much traffic does US 17 Alt over Poplar Branch carry?
About 23,300 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US 17 Alt over Poplar Branch?
The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 101 ft wide.
Who owns US 17 Alt over Poplar Branch?
It is owned by the State Highway Agency.