490th Steet over I-80
Fair Condition62 years old50 vehicles/day
Location
| State | Iowa |
| County | Pottawattamie |
| Location | 1.5 Mi. W SR M47 |
| Carries | 490th Steet |
| Crosses | I-80 |
| Coordinates | 41.49712, -95.25108 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 217.8 ft (66.4 m) |
| Max Span | 68.9 ft (21 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 650.7 sq m |
| Main Spans | 4 |
| Year Built | 1964 |
Traffic
| Avg Daily Traffic | 50 (2022) |
| Truck Traffic | 30% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000045620 |