Structure 25504240708361 · Terrebonne County, LA
Carries Us0090 over Drain Canals La.20 Rr, .5 Mi East Of La 311.
29,544 ft end to end, longest span 95 ft: about 82 football fields, or 5.6 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 | Terrebonne |
| Location | .5 Mi East Of La 311 |
| Carries | Us0090 |
| Crosses | Drain Canals La.20 Rr |
| Coordinates | 29.70714, -90.91440 |
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 29544.0 ft (9,005 m) |
| Max Span | 95.1 ft (29 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 117965.5 sq m |
| Main Spans | 424 |
| Year Built | 1995 |
| Avg Daily Traffic | 4,014 (2021) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 5 |
| Last Inspection | October 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 | 025504240708361 |
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.