IRR Us212 over Missouri Rv (oahe Lk)
Fair Condition68 years old521 vehicles/day
Location
| State | South Dakota |
| County | Potter |
| Location | Dewey - Potter Co. Line |
| Carries | IRR Us212 |
| Crosses | Missouri Rv (oahe Lk) |
| Coordinates | 45.01143, -100.29386 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Thru |
| Total Length | 4619.4 ft (1,408 m) |
| Max Span | 449.8 ft (137.1 m) |
| Deck Width | 28.5 ft (8.7 m) |
| Deck Area | 12249.6 sq m |
| Main Spans | 7 |
| Year Built | 1958 (reconstructed 1980) |
Traffic
| Avg Daily Traffic | 521 (2024) |
| Truck Traffic | 27% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000054056158 |