237th Street over Big Sioux River
Poor Condition50 years old35 vehicles/day
Location
| State | South Dakota |
| County | Moody |
| Location | 3.5s & 2.6w Of Egan |
| Carries | 237th Street |
| Crosses | Big Sioux River |
| Coordinates | 43.94973, -96.70116 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 3 (Serious) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 180.1 ft (54.9 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 444.7 sq m |
| Main Spans | 4 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 35 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000051093170 |