I-77 SB over Sc 48
GoodRichland County, South Carolina · 4 MI S Columbia · Structure no. 000000000007732
- Built
- 1983
- 42 years old, rebuilt 1987
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 240 ft
- 2 main spans
- Daily traffic
- 42,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-77 SB over Sc 48 is a steel continuous stringer/multi-beam or girder carrying I-77 SB over Sc 48 in Richland County, South Carolina. It was built in 1983 and reconstructed in 1987, so it is 42 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 42,500 vehicles a day, roughly 16% of them trucks, projected to reach 52,700 by 2043. The structure is 240 ft (73.2 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-77 SB over Sc 48 built?
It was built in 1983, making it 42 years old in 2025. It was reconstructed in 1987.
What condition is I-77 SB over Sc 48 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 January 2024.
How much traffic does I-77 SB over Sc 48 carry?
About 42,500 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is I-77 SB over Sc 48?
The structure is 240 ft (73.2 m) long with a longest span of 120 ft (36.6 m) and a deck 67 ft wide.
Who owns I-77 SB over Sc 48?
It is owned by the State Highway Agency.