Us-31 over Manistee River
Fair Condition93 years old17,789 vehicles/day
Location
| State | Michigan |
| County | Manistee |
| Location | In Manistee |
| Carries | Us-31 |
| Crosses | Manistee River |
| Coordinates | 44.25016, -86.31875 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Movable - Bascule |
| Total Length | 315.9 ft (96.3 m) |
| Max Span | 132.9 ft (40.5 m) |
| Deck Width | 53.8 ft (16.4 m) |
| Deck Area | 1579.3 sq m |
| Main Spans | 1 |
| Year Built | 1933 (reconstructed 2023) |
Traffic
| Avg Daily Traffic | 17,789 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 8 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000000006436 |