WB US 20 over S. Fk Iowa River
Good Condition36 years old4,650 vehicles/day
Location
| State | Iowa |
| County | Hardin |
| Location | 1.0 Mile East Of SR S27 |
| Carries | WB US 20 |
| Crosses | S. Fk Iowa River |
| Coordinates | 42.44788, -93.36650 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 170.9 ft (52.1 m) |
| Max Span | 82.0 ft (25 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 687.7 sq m |
| Main Spans | 3 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 4,650 (2022) |
| Truck Traffic | 30% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000606205 |