I-520 over Unsanitary Trib
FairRichmond County, Georgia · 8.1 MI NE of Hephzibah · Structure no. 000000024500670
- Built
- 1981
- 44 years old, rebuilt 2003
- Condition
- Fair
- inspected October 2023
- Type
- Culvert
- Concrete
- Length
- 41 ft
- 5 main spans
- Daily traffic
- 29,700
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-520 over Unsanitary Trib is a concrete culvert carrying I-520 over Unsanitary Trib in Richmond County, Georgia. It was built in 1981 and reconstructed in 2003, so it is 44 years old, younger than the Georgia average of 47.5 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 29,700 vehicles a day, roughly 1% of them trucks, projected to reach 35,145 by 2032. The structure is 41 ft (12.5 m) long. 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-520 over Unsanitary Trib built?
It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2003.
What condition is I-520 over Unsanitary Trib 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 October 2023.
How much traffic does I-520 over Unsanitary Trib carry?
About 29,700 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is I-520 over Unsanitary Trib?
The structure is 41 ft (12.5 m) long with a longest span of 7 ft (2.1 m).
Who owns I-520 over Unsanitary Trib?
It is owned by the State Highway Agency.