FM - Boston over Nishnabotna River
Poor Condition75 years old131 vehicles/day
Location
| State | Iowa |
| County | Cass |
| Location | 077361205 |
| Carries | FM - Boston |
| Crosses | Nishnabotna River |
| Coordinates | 41.48873, -94.93989 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 212.9 ft (64.9 m) |
| Max Span | 82.0 ft (25 m) |
| Deck Width | 22.0 ft (6.7 m) |
| Deck Area | 434.8 sq m |
| Main Spans | 3 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 131 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000100960 |