Ramp D (nb) over Overflow
Good Condition31 years old5,100 vehicles/day
Location
| State | Iowa |
| County | Black Hawk |
| Location | 0.2 Mi. N Jct. Ia #57 |
| Carries | Ramp D (nb) |
| Crosses | Overflow |
| Coordinates | 42.54026, -92.42460 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 493.1 ft (150.3 m) |
| Max Span | 92.8 ft (28.3 m) |
| Deck Width | 29.2 ft (8.9 m) |
| Deck Area | 1337.7 sq m |
| Main Spans | 5 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 5,100 (2022) |
| Truck Traffic | 21% |
| Lanes On Bridge | 1 |
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 | 000000000601645 |