Old M-61 over Middle Branch River
PoorPosted for loadOsceola County, Michigan · 0.1 MI E of M-66 · Structure no. 000000000008603
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected August 2024
- Type
- Arch - Deck
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 3,600
- 2008 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Old M-61 over Middle Branch River is a concrete arch - deck carrying Old M-61 over Middle Branch River in Osceola County, Michigan. It was built in 1939, so it is 86 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. Its operating status is: posted for load restriction.
It carries about 3,600 vehicles a day, roughly 5% of them trucks, projected to reach 6,000 by 2028. The structure is 27 ft (8.2 m) long and 117 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Old M-61 over Middle Branch River built?
It was built in 1939, making it 86 years old in 2025.
What condition is Old M-61 over Middle Branch 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 August 2024.
How much traffic does Old M-61 over Middle Branch River carry?
About 3,600 vehicles per day (2008 count), of which roughly 5% are trucks.
How long is Old M-61 over Middle Branch River?
The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 117 ft wide.
Who owns Old M-61 over Middle Branch River?
It is owned by the City or Municipal Highway Agency.