I0310 over Mississippi River
Fair Condition43 years old47,396 vehicles/day
Location
| State | Louisiana |
| County | St. Charles |
| Location | 4.4 Mi S Of US 61 |
| Carries | I0310 |
| Crosses | Mississippi River |
| Coordinates | 29.94460, -90.37292 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stayed Girder |
| Total Length | 2745.1 ft (836.7 m) |
| Max Span | 1234.9 ft (376.4 m) |
| Deck Width | 92.5 ft (28.2 m) |
| Deck Area | 23594.9 sq m |
| Main Spans | 5 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 47,396 (2021) |
| Truck Traffic | 25% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 024504503700001 |