M-24 Conn WB over I-75
FairOakland County, Michigan · @ M-24 (M-24 Conn to I-75 · Structure no. 000000000008009
- Built
- 1962
- 63 years old, rebuilt 2002
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 246 ft
- 4 main spans
- Daily traffic
- 20,482
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
M-24 Conn WB over I-75 is a steel stringer/multi-beam or girder carrying M-24 Conn WB over I-75 in Oakland County, Michigan. It was built in 1962 and reconstructed in 2002, 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 20,482 vehicles a day, roughly 2% of them trucks, projected to reach 24,472 by 2018. The structure is 246 ft (75.1 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M-24 Conn WB over I-75 built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2002.
What condition is M-24 Conn WB over I-75 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.
How much traffic does M-24 Conn WB over I-75 carry?
About 20,482 vehicles per day (2007 count), of which roughly 2% are trucks.
How long is M-24 Conn WB over I-75?
The structure is 246 ft (75.1 m) long with a longest span of 89 ft (27 m) and a deck 29 ft wide.
Who owns M-24 Conn WB over I-75?
It is owned by the State Highway Agency.