Ia 21 over Deep River
Good Condition64 years old1,730 vehicles/day
Location
| State | Iowa |
| County | Poweshiek |
| Location | 1.0 Mi. N Of Jct. Ia 85 |
| Carries | Ia 21 |
| Crosses | Deep River |
| Coordinates | 41.59123, -92.35535 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 166.0 ft (50.6 m) |
| Max Span | 68.9 ft (21 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 556.6 sq m |
| Main Spans | 3 |
| Year Built | 1962 |
Traffic
| Avg Daily Traffic | 1,730 (2022) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000045890 |