Keystone RD over Sny Magill
Good Condition9 years old62 vehicles/day
Location
| State | Iowa |
| County | Clayton |
| Location | 094032202 |
| Carries | Keystone RD |
| Crosses | Sny Magill |
| Coordinates | 42.94848, -91.18630 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 9 — Foundation above flood level |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 181.1 ft (55.2 m) |
| Max Span | 50.9 ft (15.5 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 557.5 sq m |
| Main Spans | 4 |
| Year Built | 2017 |
Traffic
| Avg Daily Traffic | 62 (2022) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000120262 |