Structure 23600000020468 · Orleans County, LA
Carries I0010 over Lake Ponchartrain, 3.1 Mi SW Of La 433.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work29,202 ft end to end, longest span 250 ft: about 81 football fields, or 5.5 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.
| State | Louisiana |
| County | Orleans |
| Location | 3.1 Mi SW Of La 433 |
| Carries | I0010 |
| Crosses | Lake Ponchartrain |
| Coordinates | 30.21258, -89.79320 |
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 29202.1 ft (8900.8 m) |
| Max Span | 250.0 ft (76.2 m) |
| Deck Width | 60.0 ft (18.3 m) |
| Deck Area | 162884.6 sq m |
| Main Spans | 3 |
| Year Built | 2011 |
| Avg Daily Traffic | 1,600 (2021) |
| Truck Traffic | 30% |
| Lanes On Bridge | 3 |
| Last Inspection | August 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 023600000020468 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.