310th Street over Tarkio River
Fair Condition58 years old210 vehicles/day
Location
| State | Iowa |
| County | Page |
| Location | 067382901 |
| Carries | 310th Street |
| Crosses | Tarkio River |
| Coordinates | 40.59603, -95.22656 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 229.0 ft (69.8 m) |
| Max Span | 80.1 ft (24.4 m) |
| Deck Width | 33.5 ft (10.2 m) |
| Deck Area | 712.0 sq m |
| Main Spans | 3 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 210 (2022) |
| Truck Traffic | 31% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2022 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000039050 |