Sanborn Street over Black River
Poor Condition52 years old850 vehicles/day
Location
| State | Michigan |
| County | Sanilac |
| Location | City Of Croswell |
| Carries | Sanborn Street |
| Crosses | Black River |
| Coordinates | 43.27175, -82.62111 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 3 (Serious) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 182.4 ft (55.6 m) |
| Max Span | 61.4 ft (18.7 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 583.8 sq m |
| Main Spans | 3 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 850 (1985) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 12 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000009670 |