RT Dd S over Dardenne CR
Good Condition20 years old3,413 vehicles/day
Location
| State | Missouri |
| County | St. Charles |
| Location | S 417 T 46 N R 2 E |
| Carries | RT Dd S |
| Crosses | Dardenne CR |
| Coordinates | 38.73450, -90.80325 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 235.6 ft (71.8 m) |
| Max Span | 67.9 ft (20.7 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 933.4 sq m |
| Main Spans | 4 |
| Year Built | 2006 |
Traffic
| Avg Daily Traffic | 3,413 (2024) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 31444 |