R 57 over Middle River
Good Condition15 years old1,136 vehicles/day
Location
| State | Iowa |
| County | Warren |
| Location | 076240804 |
| Carries | R 57 |
| Crosses | Middle River |
| Coordinates | 41.40682, -93.64533 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very 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 | 306.1 ft (93.3 m) |
| Max Span | 111.9 ft (34.1 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 933 sq m |
| Main Spans | 3 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 1,136 (2022) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000334521 |