M-66 over Prairie River
Fair Condition95 years old5,400 vehicles/day
Location
| State | Michigan |
| County | St. Joseph |
| Location | 0.4 Mi S Of Findley Road |
| Carries | M-66 |
| Crosses | Prairie River |
| Coordinates | 41.88864, -85.40967 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 60.0 ft (18.3 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 48.9 ft (14.9 m) |
| Deck Area | 272.7 sq m |
| Main Spans | 1 |
| Year Built | 1931 (reconstructed 1980) |
Traffic
| Avg Daily Traffic | 5,400 (2018) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000010276 |