Structure 6524 · Marquette County, MI
Carries County RD 557 over Little West River, 5 Miles N Of Mashek.
23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a tee-beam bridge.
| State | Michigan |
| County | Marquette |
| Location | 5 Miles N Of Mashek |
| Carries | County RD 557 |
| Crosses | Little West River |
| Coordinates | 46.12155, -87.47032 |
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 23.0 ft (7 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 37.7 ft (11.5 m) |
| Deck Area | 80.5 sq m |
| Main Spans | 1 |
| Year Built | 1928 |
| Avg Daily Traffic | 525 (2001) |
| Lanes On Bridge | 2 |
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 3 — Scour critical |
| Structure Number | 000000000006524 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.