M-13 over Cass River
Poor Condition62 years old5,700 vehicles/day
Location
| State | Michigan |
| County | Saginaw |
| Location | 3.3 Mi S Of M-46 |
| Carries | M-13 |
| Crosses | Cass River |
| Coordinates | 43.36450, -83.95485 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 390.1 ft (118.9 m) |
| Max Span | 64.3 ft (19.6 m) |
| Deck Width | 37.4 ft (11.4 m) |
| Deck Area | 1355.5 sq m |
| Main Spans | 6 |
| Year Built | 1964 |
Traffic
| Avg Daily Traffic | 5,700 (2015) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000009082 |