US 20 over Iowa River
Good Condition23 years old9,200 vehicles/day
Location
| State | Iowa |
| County | Hardin |
| Location | 1.5 Mi. W Of Jct. SR S56 |
| Carries | US 20 |
| Crosses | Iowa River |
| Coordinates | 42.43698, -93.07318 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 1639.1 ft (499.6 m) |
| Max Span | 302.2 ft (92.1 m) |
| Deck Width | 84.3 ft (25.7 m) |
| Deck Area | 12839.7 sq m |
| Main Spans | 5 |
| Year Built | 2003 |
Traffic
| Avg Daily Traffic | 9,200 (2022) |
| Truck Traffic | 29% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000608350 |