Us-31 SB over Old Us-31
Fair Condition40 years old4,256 vehicles/day
Location
| State | Michigan |
| County | Mason |
| Location | 3.5 Mi SE Of Ludington |
| Carries | Us-31 SB |
| Crosses | Old Us-31 |
| Coordinates | 43.91543, -86.40348 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 92.8 ft (28.3 m) |
| Max Span | 92.8 ft (28.3 m) |
| Deck Width | 47.9 ft (14.6 m) |
| Deck Area | 413.2 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 4,256 (2007) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000006653 |