339 ST over Knob CR
Fair Condition36 years old50 vehicles/day
Location
| State | Missouri |
| County | Cass |
| Location | S 24 T 43 N R 29 W |
| Carries | 339 ST |
| Crosses | Knob CR |
| Coordinates | 38.49512, -94.07958 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 67.9 ft (20.7 m) |
| Max Span | 66.9 ft (20.4 m) |
| Deck Width | 16.4 ft (5 m) |
| Deck Area | 103.5 sq m |
| Main Spans | 1 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 50 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 25125 |