Ia 21 over Iowa River Overflow
Fair Condition44 years old2,710 vehicles/day
Location
| State | Iowa |
| County | Benton |
| Location | 1.6 Mi. N Of Jct. Ia 212 |
| Carries | Ia 21 |
| Crosses | Iowa River Overflow |
| Coordinates | 41.86686, -92.27780 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 204.1 ft (62.2 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 47.6 ft (14.5 m) |
| Deck Area | 901.9 sq m |
| Main Spans | 5 |
| Year Built | 1982 |
Traffic
| Avg Daily Traffic | 2,710 (2022) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000014401 |