SR 120 Loop over I-75 + (1) I-75 Ramp
GoodCobb County, Georgia · In South East Marietta · Structure no. 000000006700470
- Built
- 1965
- 60 years old, rebuilt 1990
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 293 ft
- 4 main spans
- Daily traffic
- 32,922
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 120 Loop over I-75 + (1) I-75 Ramp is a steel continuous stringer/multi-beam or girder carrying SR 120 Loop over I-75 + (1) I-75 Ramp in Cobb County, Georgia. It was built in 1965 and reconstructed in 1990, so it is 60 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 32,922 vehicles a day, roughly 1% of them trucks, projected to reach 60,090 by 2032. The structure is 293 ft (89.3 m) long and 137 ft wide. If it were closed, the detour would be 5 mi (8 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 SR 120 Loop over I-75 + (1) I-75 Ramp built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1990.
What condition is SR 120 Loop over I-75 + (1) I-75 Ramp 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 May 2023.
How much traffic does SR 120 Loop over I-75 + (1) I-75 Ramp carry?
About 32,922 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is SR 120 Loop over I-75 + (1) I-75 Ramp?
The structure is 293 ft (89.3 m) long with a longest span of 88 ft (26.8 m) and a deck 137 ft wide.
Who owns SR 120 Loop over I-75 + (1) I-75 Ramp?
It is owned by the State Highway Agency.