I-520 over Savannah River Overflow
FairAiken County, South Carolina · North Augusta · Structure no. 000000000009845
- Built
- 2004
- 21 years old
- Condition
- Fair
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 501 ft
- 10 main spans
- Daily traffic
- 19,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-520 over Savannah River Overflow is a prestressed concrete continuous stringer/multi-beam or girder carrying I-520 over Savannah River Overflow in Aiken County, South Carolina. It was built in 2004, so it is 21 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 19,200 vehicles a day, roughly 16% of them trucks, projected to reach 23,616 by 2043. The structure is 501 ft (152.6 m) long and 105 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-520 over Savannah River Overflow built?
It was built in 2004, making it 21 years old in 2025.
What condition is I-520 over Savannah River Overflow 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 January 2024.
How much traffic does I-520 over Savannah River Overflow carry?
About 19,200 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is I-520 over Savannah River Overflow?
The structure is 501 ft (152.6 m) long with a longest span of 50 ft (15.3 m) and a deck 105 ft wide.
Who owns I-520 over Savannah River Overflow?
It is owned by the State Highway Agency.