Sth 13 over Onion River
Good Condition49 years old4,100 vehicles/day
Location
| State | Wisconsin |
| County | Bayfield |
| Location | 6.8m N Jct Cth C |
| Carries | Sth 13 |
| Crosses | Onion River |
| Coordinates | 46.75469, -90.89034 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 51.8 ft (15.8 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 200.7 sq m |
| Main Spans | 1 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 4,100 (2022) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | B04002500000000 |