LA3147 over Humble Canal
Vermilion Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA3147 over Humble Canal in Vermilion Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1982 and reconstructed in 2009, making it 43 years old at the 2025 inventory.
- It carries about 221 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 26 of the 260 inventoried bridges in Vermilion Parish rated poor (10.0%); 26 (10.0%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (29.59937, -92.34127)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel movable swing |
| Length | about 491 ft |
| Location | 5.5 Mi S. of La 82 |
| NBI structure number | 035708576605721 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Vermilion Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| La0014-b over Vermilion R/abbeville | 1964 | 19,800 | Poor |
| LA0014 over Valcourt Coulee | 1967 | 19,800 | Fair |
| US0167 over Kenny Coulee | 1954 | 18,668 | Good |
| US0167 over Canal | 1954 | 18,668 | Good |
| LA0014 over Bayou Tigre | 1957 | 13,088 | Fair |
| LA0014 over Drainage | 1999 | 12,903 | Good |
All bridges nearby: Vermilion Parish, LA bridge conditions · every bridge in Vermilion Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.