Ia 3 over Big Sioux River
Good Condition16 years old1,570 vehicles/day
Location
| State | Iowa |
| County | Plymouth |
| Location | 1.5 Mi. W Of W Jct. Ia 12 |
| Carries | Ia 3 |
| Crosses | Big Sioux River |
| Coordinates | 42.76179, -96.63263 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 505.9 ft (154.2 m) |
| Max Span | 122.0 ft (37.2 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 2035.4 sq m |
| Main Spans | 5 |
| Year Built | 2010 |
Traffic
| Avg Daily Traffic | 1,570 (2022) |
| Truck Traffic | 29% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000039651 |