J-28 / 170th ST over West Tarkio River
Poor Condition74 years old120 vehicles/day
Location
| State | Iowa |
| County | Page |
| Location | 069380901 |
| Carries | J-28 / 170th ST |
| Crosses | West Tarkio River |
| Coordinates | 40.80054, -95.21609 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 128.0 ft (39 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 22.0 ft (6.7 m) |
| Deck Area | 261.3 sq m |
| Main Spans | 3 |
| Year Built | 1952 |
Traffic
| Avg Daily Traffic | 120 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000266950 |