I-75 NB over I-75 Bl & M-24
GoodOakland County, Michigan · @ I-75 M-24 · Structure no. 000000000008006
- Built
- 1962
- 63 years old, rebuilt 1988
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 194 ft
- 4 main spans
- Daily traffic
- 71,900
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 NB over I-75 Bl & M-24 is a prestressed concrete stringer/multi-beam or girder carrying I-75 NB over I-75 Bl & M-24 in Oakland County, Michigan. It was built in 1962 and reconstructed in 1988, so it is 63 years old, older than the Michigan average of 48.3 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 71,900 vehicles a day, roughly 4% of them trucks, projected to reach 80,300 by 2029. The structure is 194 ft (59.1 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 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 I-75 NB over I-75 Bl & M-24 built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1988.
What condition is I-75 NB over I-75 Bl & M-24 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 NB over I-75 Bl & M-24 carry?
About 71,900 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is I-75 NB over I-75 Bl & M-24?
The structure is 194 ft (59.1 m) long with a longest span of 61 ft (18.7 m) and a deck 71 ft wide.
Who owns I-75 NB over I-75 Bl & M-24?
It is owned by the State Highway Agency.