M-24 over S Br Flint River
PoorLapeer County, Michigan · 1.8 MI N of M-21 · Structure no. 000000000005301
- Built
- 1948
- 77 years old, rebuilt 1999
- Condition
- Poor
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 65 ft
- 1 main span
- Daily traffic
- 18,440
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
M-24 over S Br Flint River is a steel stringer/multi-beam or girder carrying M-24 over S Br Flint River in Lapeer County, Michigan. It was built in 1948 and reconstructed in 1999, so it is 77 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 18,440 vehicles a day, roughly 3% of them trucks, projected to reach 26,109 by 2018. The structure is 65 ft (19.8 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M-24 over S Br Flint River built?
It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1999.
What condition is M-24 over S Br Flint River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.
How much traffic does M-24 over S Br Flint River carry?
About 18,440 vehicles per day (2007 count), of which roughly 3% are trucks.
How long is M-24 over S Br Flint River?
The structure is 65 ft (19.8 m) long with a longest span of 61 ft (18.7 m) and a deck 45 ft wide.
Who owns M-24 over S Br Flint River?
It is owned by the State Highway Agency.