I-20 over Chattahoochee River
GoodCobb County, Georgia · 6.2 MI SE of Austell · Structure no. 000000006700900
- Built
- 1963
- 62 years old, rebuilt 1979
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 452 ft
- 5 main spans
- Daily traffic
- 153,000
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-20 over Chattahoochee River is a steel continuous stringer/multi-beam or girder carrying I-20 over Chattahoochee River in Cobb County, Georgia. It was built in 1963 and reconstructed in 1979, so it is 62 years old, older than the Georgia average of 47.5 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 153,000 vehicles a day, roughly 1% of them trucks, projected to reach 188,775 by 2032. The structure is 452 ft (137.8 m) long and 137 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. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-20 over Chattahoochee River built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1979.
What condition is I-20 over Chattahoochee River 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 September 2023.
How much traffic does I-20 over Chattahoochee River carry?
About 153,000 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is I-20 over Chattahoochee River?
The structure is 452 ft (137.8 m) long with a longest span of 109 ft (33.2 m) and a deck 137 ft wide.
Who owns I-20 over Chattahoochee River?
It is owned by the State Highway Agency.