I-75 Managed Lanes over Detention Pond
GoodCobb County, Georgia · In Marietta · Structure no. 000000006753420
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 420 ft
- 3 main spans
- Daily traffic
- 6,650
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 Managed Lanes over Detention Pond is a prestressed concrete stringer/multi-beam or girder carrying I-75 Managed Lanes over Detention Pond in Cobb County, Georgia. It was built in 2017, so it is 8 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 6,650 vehicles a day, projected to reach 18,520 by 2035. The structure is 420 ft (128 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-75 Managed Lanes over Detention Pond built?
It was built in 2017, making it 8 years old in 2025.
What condition is I-75 Managed Lanes over Detention Pond 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 February 2024.
How much traffic does I-75 Managed Lanes over Detention Pond carry?
About 6,650 vehicles per day (2024 count).
How long is I-75 Managed Lanes over Detention Pond?
The structure is 420 ft (128 m) long with a longest span of 140 ft (42.7 m) and a deck 39 ft wide.
Who owns I-75 Managed Lanes over Detention Pond?
It is owned by the State Highway Agency.