County RD 457 over Unknown Branch
Fair Condition40 years old40 vehicles/day
Location
| State | Missouri |
| County | Callaway |
| Location | S 27 T 46 N R 8 W |
| Carries | County RD 457 |
| Crosses | Unknown Branch |
| Coordinates | 38.72717, -91.80428 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Girder and Floorbeam |
| Total Length | 60.0 ft (18.3 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 89.7 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 40 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 1 |
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 | 22061 |