159th AVE over Boxelder Ck
Poor Condition76 years old39 vehicles/day
Location
| State | South Dakota |
| County | Pennington |
| Location | 1.6 W New Underwood |
| Carries | 159th AVE |
| Crosses | Boxelder Ck |
| Coordinates | 44.09480, -102.86959 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 40.0 ft (12.2 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 100.0 sq m |
| Main Spans | 2 |
| Year Built | 1950 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 39 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000052590291 |