M-28 over Baltimore River
Good Condition58 years old2,075 vehicles/day
Location
| State | Michigan |
| County | Ontonagon |
| Location | 1.5 Mi W Of Us-45 |
| Carries | M-28 |
| Crosses | Baltimore River |
| Coordinates | 46.53352, -89.20445 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 139.1 ft (42.4 m) |
| Max Span | 54.5 ft (16.6 m) |
| Deck Width | 46.6 ft (14.2 m) |
| Deck Area | 602.1 sq m |
| Main Spans | 3 |
| Year Built | 1968 (reconstructed 2020) |
Traffic
| Avg Daily Traffic | 2,075 (2019) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
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 | 000000000008489 |