Allgood Road over I-75
GoodCobb County, Georgia · In North Marietta · Structure no. 000000006701620
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 270 ft
- 2 main spans
- Daily traffic
- 14,200
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Allgood Road over I-75 is a steel continuous stringer/multi-beam or girder carrying Allgood Road over I-75 in Cobb County, Georgia. It was built in 1974, so it is 51 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 14,200 vehicles a day, roughly 1% of them trucks, projected to reach 19,380 by 2032. The structure is 270 ft (82.3 m) long and 64 ft wide. If it were closed, the detour would be 3.7 mi (6 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 Allgood Road over I-75 built?
It was built in 1974, making it 51 years old in 2025.
What condition is Allgood Road 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 May 2023.
How much traffic does Allgood Road over I-75 carry?
About 14,200 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is Allgood Road over I-75?
The structure is 270 ft (82.3 m) long with a longest span of 143 ft (43.6 m) and a deck 64 ft wide.
Who owns Allgood Road over I-75?
It is owned by the State Highway Agency.