I-285 over I-75
GoodCobb County, Georgia · 6.7 MI SE of Marietta · Structure no. 000000006701010
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 322 ft
- 4 main spans
- Daily traffic
- 164,000
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-285 over I-75 is a steel continuous stringer/multi-beam or girder carrying I-285 over I-75 in Cobb County, Georgia. It was built in 1978, so it is 47 years old, younger 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 164,000 vehicles a day, roughly 1% of them trucks, projected to reach 119,505 by 2032. The structure is 322 ft (98.1 m) long and 114 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-285 over I-75 built?
It was built in 1978, making it 47 years old in 2025.
What condition is I-285 over I-75 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 April 2023.
How much traffic does I-285 over I-75 carry?
About 164,000 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is I-285 over I-75?
The structure is 322 ft (98.1 m) long with a longest span of 93 ft (28.3 m) and a deck 114 ft wide.
Who owns I-285 over I-75?
It is owned by the State Highway Agency.