W 4th ST over US 20
Fair Condition42 years old2,670 vehicles/day
Location
| State | Iowa |
| County | Black Hawk |
| Location | 0.5 Mi. E Of Jct. US 63 |
| Carries | W 4th ST |
| Crosses | US 20 |
| Coordinates | 42.45537, -92.39589 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 294.9 ft (89.9 m) |
| Max Span | 97.1 ft (29.6 m) |
| Deck Width | 47.2 ft (14.4 m) |
| Deck Area | 1294.6 sq m |
| Main Spans | 4 |
| Year Built | 1984 |
Traffic
| Avg Daily Traffic | 2,670 (2022) |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000605205 |