Mo 221 S over Br Knob CR
Fair Condition72 years old2,220 vehicles/day
Location
| State | Missouri |
| County | Iron |
| Location | S 30 T 34 N R 4 E |
| Carries | Mo 221 S |
| Crosses | Br Knob CR |
| Coordinates | 37.62119, -90.63664 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 26.9 ft (8.2 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 101.7 sq m |
| Main Spans | 2 |
| Year Built | 1954 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 2,220 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 7691 |