HWY 1416 over Ck
Good Condition100 years old1,089 vehicles/day
Location
| State | South Dakota |
| County | Pennington |
| Location | 1n New Underwood |
| Carries | HWY 1416 |
| Crosses | Ck |
| Coordinates | 44.09626, -102.83353 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 53.5 sq m |
| Main Spans | 2 |
| Year Built | 1926 (reconstructed 1935) |
Traffic
| Avg Daily Traffic | 1,089 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 621 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000052609290 |