Mosinee Grade Road over Black River
Fair Condition68 years old10 vehicles/day
Location
| State | Michigan |
| County | Gogebic |
| Location | Sec 28 Erwin Twp |
| Carries | Mosinee Grade Road |
| Crosses | Black River |
| Coordinates | 46.35886, -90.06104 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 49.9 ft (15.2 m) |
| Max Span | 38.1 ft (11.6 m) |
| Deck Width | 21.0 ft (6.4 m) |
| Deck Area | 97.3 sq m |
| Main Spans | 1 |
| Year Built | 1958 (reconstructed 2003) |
Traffic
| Avg Daily Traffic | 10 (1998) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000003005 |