NB Ia 1 over US 218
Good Condition43 years old7,650 vehicles/day
Location
| State | Iowa |
| County | Johnson |
| Location | At Jct U.s. 218 |
| Carries | NB Ia 1 |
| Crosses | US 218 |
| Coordinates | 41.63339, -91.56805 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 268.0 ft (81.7 m) |
| Max Span | 91.9 ft (28 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 1078.4 sq m |
| Main Spans | 4 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 7,650 (2022) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000605540 |