County RD 557 over Big West River
Good Condition8 years old357 vehicles/day
Location
| State | Michigan |
| County | Marquette |
| Location | 7 Miles No Of Mashek |
| Carries | County RD 557 |
| Crosses | Big West River |
| Coordinates | 46.14665, -87.46254 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 76.1 ft (23.2 m) |
| Max Span | 72.5 ft (22.1 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 306.2 sq m |
| Main Spans | 1 |
| Year Built | 2018 |
Traffic
| Avg Daily Traffic | 357 (2017) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000006525 |