M-66 over Middle Branch River
Good Condition31 years old1,685 vehicles/day
Location
| State | Michigan |
| County | Osceola |
| Location | 2.2 Mi N Of M-61 |
| Carries | M-66 |
| Crosses | Middle Branch River |
| Coordinates | 44.07693, -85.14734 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 79.7 ft (24.3 m) |
| Max Span | 75.8 ft (23.1 m) |
| Deck Width | 47.2 ft (14.4 m) |
| Deck Area | 349.9 sq m |
| Main Spans | 1 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 1,685 (2007) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008593 |