SR D-20 over I-35
Fair Condition54 years old828 vehicles/day
Location
| State | Iowa |
| County | Hamilton |
| Location | At Junction With D20 |
| Carries | SR D-20 |
| Crosses | I-35 |
| Coordinates | 42.51467, -93.56826 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 292.0 ft (89 m) |
| Max Span | 94.2 ft (28.7 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 961.2 sq m |
| Main Spans | 4 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 828 (2022) |
| Truck Traffic | 21% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000602555 |