Us183 over Mill Iron Ck
Good Condition21 years old689 vehicles/day
Location
| State | South Dakota |
| County | Lyman |
| Location | 1.0 E & 6.5 S Presho |
| Carries | Us183 |
| Crosses | Mill Iron Ck |
| Coordinates | 43.81055, -100.04126 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 9 (Excellent) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 86.3 sq m |
| Main Spans | 2 |
| Year Built | 2005 |
Traffic
| Avg Daily Traffic | 689 (2024) |
| Truck Traffic | 31% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2021 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000043160265 |