WB 20 over US 218
Fair Condition43 years old10,200 vehicles/day
Location
| State | Iowa |
| County | Black Hawk |
| Location | At W Jct. I-380 |
| Carries | WB 20 |
| Crosses | US 218 |
| Coordinates | 42.45454, -92.31156 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 266.1 ft (81.1 m) |
| Max Span | 82.0 ft (25 m) |
| Deck Width | 56.8 ft (17.3 m) |
| Deck Area | 1403.0 sq m |
| Main Spans | 4 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 10,200 (2022) |
| Truck Traffic | 21% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000605285 |