420th over Burr Oak Creek
Poor Condition60 years old15 vehicles/day
Location
| State | Iowa |
| County | Mitchell |
| Location | 099172501 |
| Carries | 420th |
| Crosses | Burr Oak Creek |
| Coordinates | 43.37109, -92.80418 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 71.9 sq m |
| Main Spans | 1 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 15 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000248640 |