Old Us-31(ridge ST over Us-31
Fair Condition69 years old1,100 vehicles/day
Location
| State | Michigan |
| County | Ottawa |
| Location | In Ferrysburg |
| Carries | Old Us-31(ridge ST |
| Crosses | Us-31 |
| Coordinates | 43.08481, -86.21497 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 165.7 ft (50.5 m) |
| Max Span | 63.6 ft (19.4 m) |
| Deck Width | 36.7 ft (11.2 m) |
| Deck Area | 565.6 sq m |
| Main Spans | 3 |
| Year Built | 1957 |
Traffic
| Avg Daily Traffic | 1,100 (1988) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008702 |