Rockriver Road over Rock River
Good Condition19 years old145 vehicles/day
Location
| State | Michigan |
| County | Alger |
| Location | 1.1 Mi S Of M-28 |
| Carries | Rockriver Road |
| Crosses | Rock River |
| Coordinates | 46.45165, -86.92066 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 60.0 ft (18.3 m) |
| Max Span | 56.1 ft (17.1 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 155.6 sq m |
| Main Spans | 1 |
| Year Built | 2007 |
Traffic
| Avg Daily Traffic | 145 (2006) |
| 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 | 000000000000058 |