170 Street over Willow Ck
Good Condition31 years old49 vehicles/day
Location
| State | South Dakota |
| County | Codington |
| Location | 4.9e 2n Watertown |
| Carries | 170 Street |
| Crosses | Willow Ck |
| Coordinates | 44.91882, -97.00487 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 229.4 sq m |
| Main Spans | 3 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 49 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000015239160 |