Structure 25508551400331 · Terrebonne County, LA
Carries La3087 over Intracoastal Ww, .1 Mi East Of La 659.
Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.
How ratings work4,197 ft end to end, longest span 300 ft: about 12 football fields. 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 girder bridge.
| State | Louisiana |
| County | Terrebonne |
| Location | .1 Mi East Of La 659 |
| Carries | La3087 |
| Crosses | Intracoastal Ww |
| Coordinates | 29.59513, -90.67590 |
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 4196.9 ft (1279.2 m) |
| Max Span | 299.9 ft (91.4 m) |
| Deck Width | 75.1 ft (22.9 m) |
| Deck Area | 29293.7 sq m |
| Main Spans | 3 |
| Year Built | 1980 |
| Avg Daily Traffic | 13,617 (2021) |
| Truck Traffic | 11% |
| Lanes On Bridge | 4 |
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 025508551400331 |
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.