C66 310th ST over Little Sioux River
Good Condition8 years old309 vehicles/day
Location
| State | Iowa |
| County | Plymouth |
| Location | 9043190110 |
| Carries | C66 310th ST |
| Crosses | Little Sioux River |
| Coordinates | 42.60427, -95.96863 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 204.1 ft (62.2 m) |
| Max Span | 73.2 ft (22.3 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 628.2 sq m |
| Main Spans | 1 |
| Year Built | 2018 |
Traffic
| Avg Daily Traffic | 309 (2022) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000270651 |