Bridge conditions in Vernon Parish, Louisiana
337 inventoried bridges · 28 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 337 bridges in Vernon Parish: 195 rated good, 114 fair, and 28 poor.
- 28 of the 337 bridges in Vernon Parish, Louisiana, are rated in poor condition (8.3%) in the 2025 National Bridge Inventory, as of .
- 195 bridges (57.9%) are rated good and 114 (33.8%) fair.
- The median Vernon Parish bridge was built in 1992.
- The busiest poor-rated bridge is Jean St over Castor Bayou Trib. (built 1970), carrying about 3,600 vehicles a day.
Good 57.9% · Fair 33.8% · Poor 8.3% of 337 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Allen Gordy Rd over Flactor Creek Trib. | 1984 | 100,060 | Fair |
| US0171 over Sales Branch | 1975 | 17,200 | Good |
| US0171 over Flat Creek | 1979 | 14,458 | Good |
| US0171 over Sales Branch | 1975 | 14,458 | Fair |
| US0171 over Creek | 1930 | 14,420 | Good |
| US0171 over Flat Creek | 1981 | 14,420 | Good |
| US0171 over Bayou Zourie | 2012 | 12,466 | Good |
| US0171 over Castor Creek Relief | 1975 | 12,466 | Fair |
| US0171 over Castor Bayou | 1975 | 11,450 | Good |
| US0171 over Castor Bayou | 1975 | 11,450 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
Every bridge in Vernon Parish → - all 337, busiest first, each with its own condition record.
All of Louisiana: Louisiana bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.