M-33|m-72|n Mount over Au Sable River
Fair Condition42 years old8,950 vehicles/day
Location
| State | Michigan |
| County | Oscoda |
| Location | 0.7 Mi N Of S Jct M-72 |
| Carries | M-33|m-72|n Mount |
| Crosses | Au Sable River |
| Coordinates | 44.65993, -84.12896 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 160.1 ft (48.8 m) |
| Max Span | 157.5 ft (48 m) |
| Deck Width | 51.8 ft (15.8 m) |
| Deck Area | 771.0 sq m |
| Main Spans | 1 |
| Year Built | 1984 |
Traffic
| Avg Daily Traffic | 8,950 (2021) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008658 |