Keystone RD over Stream
Poor Condition69 years old62 vehicles/day
Location
| State | Iowa |
| County | Clayton |
| Location | 094032204 |
| Carries | Keystone RD |
| Crosses | Stream |
| Coordinates | 42.93847, -91.17741 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 22.6 ft (6.9 m) |
| Deck Area | 67.6 sq m |
| Main Spans | 1 |
| Year Built | 1957 |
Traffic
| Avg Daily Traffic | 62 (2022) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000120240 |