S-21-577 over I-95
GoodFlorence County, South Carolina · Oakdale Subd Florence · Structure no. 000000000004789
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 272 ft
- 4 main spans
- Daily traffic
- 15,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-577 over I-95 is a prestressed concrete continuous stringer/multi-beam or girder carrying S-21-577 over I-95 in Florence County, South Carolina. It was built in 2012, so it is 13 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 15,200 vehicles a day, roughly 1% of them trucks, projected to reach 9,120 by 2043. The structure is 272 ft (82.9 m) long and 88 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-577 over I-95 built?
It was built in 2012, making it 13 years old in 2025.
What condition is S-21-577 over I-95 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 April 2023.
How much traffic does S-21-577 over I-95 carry?
About 15,200 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is S-21-577 over I-95?
The structure is 272 ft (82.9 m) long with a longest span of 96 ft (29.3 m) and a deck 88 ft wide.
Who owns S-21-577 over I-95?
It is owned by the State Highway Agency.