Mo 21 N over RT Bb
Good Condition23 years old9,486 vehicles/day
Location
| State | Missouri |
| County | Jefferson |
| Location | S 33 T 41 N R 4 E |
| Carries | Mo 21 N |
| Crosses | RT Bb |
| Coordinates | 38.23787, -90.57735 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 169.9 ft (51.8 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 642.3 sq m |
| Main Spans | 3 |
| Year Built | 2003 |
Traffic
| Avg Daily Traffic | 9,486 (2024) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
| Lanes Under 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 | 29597 |