I-75 Nbl over SR 87 (us 23 Exit 171)
GoodBibb County, Georgia · 2 MI N of Macon · Structure no. 000000002101090
- Built
- 1965
- 60 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 256 ft
- 4 main spans
- Daily traffic
- 50,800
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 Nbl over SR 87 (us 23 Exit 171) is a steel continuous stringer/multi-beam or girder carrying I-75 Nbl over SR 87 (us 23 Exit 171) in Bibb County, Georgia. It was built in 1965, 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 50,800 vehicles a day, roughly 1% of them trucks, projected to reach 65,535 by 2032. The structure is 256 ft (78 m) long and 34 ft wide.
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-75 Nbl over SR 87 (us 23 Exit 171) built?
It was built in 1965, making it 60 years old in 2025.
What condition is I-75 Nbl over SR 87 (us 23 Exit 171) 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 December 2023.
How much traffic does I-75 Nbl over SR 87 (us 23 Exit 171) carry?
About 50,800 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is I-75 Nbl over SR 87 (us 23 Exit 171)?
The structure is 256 ft (78 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.
Who owns I-75 Nbl over SR 87 (us 23 Exit 171)?
It is owned by the State Highway Agency.