I-77 NB over S-20-41
FairFairfield County, South Carolina · 7.0 MI N of Sc 34 · Structure no. 000000000007248
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 203 ft
- 3 main spans
- Daily traffic
- 24,250
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-77 NB over S-20-41 is a steel continuous stringer/multi-beam or girder carrying I-77 NB over S-20-41 in Fairfield County, South Carolina. It was built in 1979, so it is 46 years old, younger than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 24,250 vehicles a day, roughly 17% of them trucks, projected to reach 46,560 by 2043. The structure is 203 ft (61.9 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 NB over S-20-41 built?
It was built in 1979, making it 46 years old in 2025.
What condition is I-77 NB over S-20-41 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.
How much traffic does I-77 NB over S-20-41 carry?
About 24,250 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is I-77 NB over S-20-41?
The structure is 203 ft (61.9 m) long with a longest span of 85 ft (25.9 m) and a deck 44 ft wide.
Who owns I-77 NB over S-20-41?
It is owned by the State Highway Agency.