Mo 21 N over Sandy CR
Fair Condition20 years old9,871 vehicles/day
Location
| State | Missouri |
| County | Jefferson |
| Location | S 23 T 41 N R 4 E |
| Carries | Mo 21 N |
| Crosses | Sandy CR |
| Coordinates | 38.26710, -90.55271 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Tee Beam |
| Total Length | 331.7 ft (101.1 m) |
| Max Span | 109.9 ft (33.5 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 1253.6 sq m |
| Main Spans | 3 |
| Year Built | 2006 |
Traffic
| Avg Daily Traffic | 9,871 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 31519 |