Valley RD S641 over Trap Rock River
Good Condition34 years old281 vehicles/day
Location
| State | Michigan |
| County | Houghton |
| Location | 4 Mi N Of Lake Linden |
| Carries | Valley RD S641 |
| Crosses | Trap Rock River |
| Coordinates | 47.24999, -88.37146 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 49.9 ft (15.2 m) |
| Max Span | 45.9 ft (14 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 158.1 sq m |
| Main Spans | 1 |
| Year Built | 1992 |
Traffic
| Avg Daily Traffic | 281 (1993) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000003421 |