Irwin Road over Barrett Parkway
GoodCobb County, Georgia · 4.8 MI SW of Marietta · Structure no. 000000006752390
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 184 ft
- 3 main spans
- Daily traffic
- 2,047
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Irwin Road over Barrett Parkway is a prestressed concrete stringer/multi-beam or girder carrying Irwin Road over Barrett Parkway in Cobb County, Georgia. It was built in 2002, so it is 23 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 2,047 vehicles a day, roughly 1% of them trucks, projected to reach 2,895 by 2032. The structure is 184 ft (56.1 m) long and 42 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Irwin Road over Barrett Parkway built?
It was built in 2002, making it 23 years old in 2025.
What condition is Irwin Road over Barrett Parkway 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 March 2023.
How much traffic does Irwin Road over Barrett Parkway carry?
About 2,047 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is Irwin Road over Barrett Parkway?
The structure is 184 ft (56.1 m) long with a longest span of 113 ft (34.4 m) and a deck 42 ft wide.
Who owns Irwin Road over Barrett Parkway?
It is owned by the County Highway Agency.