FM 20th ST over Br Upper Iowa River
Poor Condition75 years old15 vehicles/day
Location
| State | Iowa |
| County | Howard |
| Location | 100121601 |
| Carries | FM 20th ST |
| Crosses | Br Upper Iowa River |
| Coordinates | 43.48720, -92.27030 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 61.0 ft (18.6 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 20.0 ft (6.1 m) |
| Deck Area | 113.5 sq m |
| Main Spans | 2 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 15 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000183700 |