638 HWY over Black River
Good Condition14 years old300 vehicles/day
Location
| State | Michigan |
| County | Presque Isle |
| Location | 2.2 Mi S Of Onaway |
| Carries | 638 HWY |
| Crosses | Black River |
| Coordinates | 45.32517, -84.24798 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 86.0 ft (26.2 m) |
| Max Span | 82.0 ft (25 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 262 sq m |
| Main Spans | 1 |
| Year Built | 2012 |
Traffic
| Avg Daily Traffic | 300 (2005) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008982 |