Oberhelman RD over Dardenne CR
Fair Condition40 years old355 vehicles/day
Location
| State | Missouri |
| County | St. Charles |
| Location | S 20 T 46 N R 1 E |
| Carries | Oberhelman RD |
| Crosses | Dardenne CR |
| Coordinates | 38.72641, -90.92971 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 35.1 ft (10.7 m) |
| Max Span | 33.1 ft (10.1 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 104.9 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 355 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 22225 |