161 ST over I029
Fair Condition52 years old77 vehicles/day
Location
| State | South Dakota |
| County | Codington |
| Location | 4 S Sd 20 Interch |
| Carries | 161 ST |
| Crosses | I029 |
| Coordinates | 45.04955, -97.05442 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 296.6 ft (90.4 m) |
| Max Span | 111.9 ft (34.1 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 958.2 sq m |
| Main Spans | 2 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 77 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000015215070 |