M-20 over Chippewa River
Fair Condition86 years old14,220 vehicles/day
Location
| State | Michigan |
| County | Midland |
| Location | 1.7 Mi E Of Isabella Col |
| Carries | M-20 |
| Crosses | Chippewa River |
| Coordinates | 43.61053, -84.57414 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 107.0 ft (32.6 m) |
| Max Span | 59.7 ft (18.2 m) |
| Deck Width | 85.6 ft (26.1 m) |
| Deck Area | 850.9 sq m |
| Main Spans | 2 |
| Year Built | 1940 (reconstructed 1996) |
Traffic
| Avg Daily Traffic | 14,220 (2007) |
| Truck Traffic | 3% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000006889 |