A26 (180th St) over Big Sioux River
Poor Condition49 years old1,017 vehicles/day
Location
| State | Iowa |
| County | Lyon |
| Location | 099482103 |
| Carries | A26 (180th St) |
| Crosses | Big Sioux River |
| Coordinates | 43.38929, -96.52315 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 401.9 ft (122.5 m) |
| Max Span | 87.9 ft (26.8 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 1200.5 sq m |
| Main Spans | 5 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 1,017 (2022) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000230665 |