M-104 over Spring Lake Channel
Fair Condition60 years old29,125 vehicles/day
Location
| State | Michigan |
| County | Ottawa |
| Location | 0.2 Mi E Of Us-31 |
| Carries | M-104 |
| Crosses | Spring Lake Channel |
| Coordinates | 43.07639, -86.21341 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 399.9 ft (121.9 m) |
| Max Span | 119.8 ft (36.5 m) |
| Deck Width | 79.4 ft (24.2 m) |
| Deck Area | 2950.0 sq m |
| Main Spans | 5 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 29,125 (2021) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
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 | 000000000008797 |