Mo 21 S over Tanyard Br
Fair Condition80 years old8,707 vehicles/day
Location
| State | Missouri |
| County | Jefferson |
| Location | S 3 T 39 N R 4 E |
| Carries | Mo 21 S |
| Crosses | Tanyard Br |
| Coordinates | 38.13408, -90.57563 |
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 | 21.0 ft (6.4 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 70.4 sq m |
| Main Spans | 2 |
| Year Built | 1946 |
Traffic
| Avg Daily Traffic | 8,707 (2024) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 6033 |