M-106 over Portage River Drain
Good Condition87 years old3,180 vehicles/day
Location
| State | Michigan |
| County | Jackson |
| Location | 4.7 Mi SW Of Ingham Col |
| Carries | M-106 |
| Crosses | Portage River Drain |
| Coordinates | 42.39360, -84.26498 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Single/Spread |
| Total Length | 44.9 ft (13.7 m) |
| Max Span | 43.6 ft (13.3 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 178.1 sq m |
| Main Spans | 1 |
| Year Built | 1939 (reconstructed 2005) |
Traffic
| Avg Daily Traffic | 3,180 (2007) |
| Truck Traffic | 6% |
| 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 | 000000000004388 |