M-86 over Prairie River
Fair Condition10 years old4,825 vehicles/day
Location
| State | Michigan |
| County | St. Joseph |
| Location | 3.8 Mi W Of M-66 |
| Carries | M-86 |
| Crosses | Prairie River |
| Coordinates | 41.91902, -85.48148 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 104.0 ft (31.7 m) |
| Max Span | 101.0 ft (30.8 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 408.9 sq m |
| Main Spans | 1 |
| Year Built | 2016 |
Traffic
| Avg Daily Traffic | 4,825 (2015) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000000010283 |