I129/us75 over Missouri River
Fair Condition50 years old22,815 vehicles/day
Location
| State | Nebraska |
| County | Dakota |
| Location | Ecl South Sioux City |
| Carries | I129/us75 |
| Crosses | Missouri River |
| Coordinates | 42.44710, -96.38030 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 2607.0 ft (794.6 m) |
| Max Span | 450.1 ft (137.2 m) |
| Deck Width | 85.3 ft (26 m) |
| Deck Area | 20659.6 sq m |
| Main Spans | 15 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 22,815 (2018) |
| Truck Traffic | 13% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S129 00321 |