Porter Road over Rainy River
Fair Condition18 years old650 vehicles/day
Location
| State | Michigan |
| County | Presque Isle |
| Location | Allis Twp Sec 11 & 12 |
| Carries | Porter Road |
| Crosses | Rainy River |
| Coordinates | 45.34074, -84.15229 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 44.0 ft (13.4 m) |
| Max Span | 42.7 ft (13 m) |
| Deck Width | 31.2 ft (9.5 m) |
| Deck Area | 127.3 sq m |
| Main Spans | 1 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 650 (2007) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008977 |