S 7 over Drainage-stockpass
Fair Condition85 years old628 vehicles/day
Location
| State | Montana |
| County | Wibaux |
| Location | 17m S Wibaux |
| Carries | S 7 |
| Crosses | Drainage-stockpass |
| Coordinates | 46.74475, -104.23569 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 57.1 ft (17.4 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 137.5 sq m |
| Main Spans | 3 |
| Year Built | 1941 |
Traffic
| Avg Daily Traffic | 628 (2023) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00027061+09791 |