US 20 WB over Maple River
Good Condition9 years old2,550 vehicles/day
Location
| State | Iowa |
| County | Ida |
| Location | 4.1 Mi. E. Of E. Jct. 59 |
| Carries | US 20 WB |
| Crosses | Maple River |
| Coordinates | 42.47476, -95.43471 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 342.8 ft (104.5 m) |
| Max Span | 136.2 ft (41.5 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 1379.4 sq m |
| Main Spans | 3 |
| Year Built | 2017 |
Traffic
| Avg Daily Traffic | 2,550 (2022) |
| Truck Traffic | 33% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000700805 |