County HWY 577 over Sturgeon River
Fair Condition57 years old761 vehicles/day
Location
| State | Michigan |
| County | Dickinson |
| Location | Approx 2 Mi S Of Vulcan |
| Carries | County HWY 577 |
| Crosses | Sturgeon River |
| Coordinates | 45.75230, -87.86126 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 159.8 ft (48.7 m) |
| Max Span | 51.8 ft (15.8 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 443.2 sq m |
| Main Spans | 3 |
| Year Built | 1969 |
Traffic
| Avg Daily Traffic | 761 (2021) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000002200 |