185 ST over Medicine Knoll Ck
Good Condition21 years old25 vehicles/day
Location
| State | South Dakota |
| County | Sully |
| Location | 14.8e Onida |
| Carries | 185 ST |
| Crosses | Medicine Knoll Ck |
| Coordinates | 44.70774, -99.76040 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 28.5 ft (8.7 m) |
| Max Span | 14.1 ft (4.3 m) |
| Deck Area | 85.3 sq m |
| Main Spans | 2 |
| Year Built | 2005 |
Traffic
| Avg Daily Traffic | 25 (2022) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000060468130 |