M-66 over Clam River
Fair Condition97 years old2,696 vehicles/day
Location
| State | Michigan |
| County | Missaukee |
| Location | 3.6 Mi N Of Mcbain |
| Carries | M-66 |
| Crosses | Clam River |
| Coordinates | 44.24294, -85.21509 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 44.0 ft (13.4 m) |
| Max Span | 43.3 ft (13.2 m) |
| Deck Width | 38.7 ft (11.8 m) |
| Deck Area | 158.1 sq m |
| Main Spans | 1 |
| Year Built | 1929 |
Traffic
| Avg Daily Traffic | 2,696 (2007) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000007025 |