Structure 83500000080572 · Natchitoches County, LA
Carries La0009 over Black Lake, 4.88 Mi. East Of US 71.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work4,724 ft end to end, longest span 66 ft: about 13 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 multi-beam bridge.
| State | Louisiana |
| County | Natchitoches |
| Location | 4.88 Mi. East Of US 71 |
| Carries | La0009 |
| Crosses | Black Lake |
| Coordinates | 31.94775, -93.04780 |
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 4724.1 ft (1439.9 m) |
| Max Span | 65.9 ft (20.1 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 15550.9 sq m |
| Main Spans | 72 |
| Year Built | 2010 |
| Avg Daily Traffic | 2,118 (2021) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
| Last Inspection | May 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 083500000080572 |
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.