Bootjack RD S641 over Trap Rock River
Fair Condition51 years old1,937 vehicles/day
Location
| State | Michigan |
| County | Houghton |
| Location | .5 Mi E Of Lake Linden |
| Carries | Bootjack RD S641 |
| Crosses | Trap Rock River |
| Coordinates | 47.19596, -88.39634 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 53.8 ft (16.4 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 211.6 sq m |
| Main Spans | 1 |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 1,937 (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 | 000000000003420 |