US 63 S over Grindstone CR
Fair Condition101 years old15,601 vehicles/day
Location
| State | Missouri |
| County | Boone |
| Location | S 36 T 51 N R 13 W |
| Carries | US 63 S |
| Crosses | Grindstone CR |
| Coordinates | 39.16244, -92.33086 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 242.1 sq m |
| Main Spans | 3 |
| Year Built | 1925 (reconstructed 1999) |
Traffic
| Avg Daily Traffic | 15,601 (2024) |
| Truck Traffic | 14% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 11782 |