County RD 457 over Unknown Branch
Fair Condition51 years old35 vehicles/day
Location
| State | Missouri |
| County | Callaway |
| Location | S 35 T 46 N R 8 W |
| Carries | County RD 457 |
| Crosses | Unknown Branch |
| Coordinates | 38.71281, -91.79506 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 14.1 ft (4.3 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 74.6 sq m |
| Main Spans | 2 |
| Year Built | 1975 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 35 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
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 | 22054 |