M-106 over Portage River
Poor Condition50 years old6,730 vehicles/day
Location
| State | Michigan |
| County | Jackson |
| Location | 3 Mi NE Of I-94 |
| Carries | M-106 |
| Crosses | Portage River |
| Coordinates | 42.31213, -84.38711 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 89.9 ft (27.4 m) |
| Max Span | 43.0 ft (13.1 m) |
| Deck Width | 50.5 ft (15.4 m) |
| Deck Area | 422.0 sq m |
| Main Spans | 2 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 6,730 (2007) |
| Truck Traffic | 3% |
| 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 | 000000000004387 |