Bridge conditions in Plaquemines Parish, Louisiana
35 inventoried bridges · 7 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 5 bridges in Plaquemines Parish is rated in poor condition: 7 of 35 on the federal inventory, one of the higher shares in Louisiana.
- 7 of the 35 bridges in Plaquemines Parish, Louisiana, are rated in poor condition (20.0%) in the 2025 National Bridge Inventory, as of .
- 6 bridges (17.1%) are rated good and 22 (62.9%) fair.
- The median Plaquemines Parish bridge was built in 1977.
- The busiest poor-rated bridge is Gravolet Rd over Drainage Canal (built 1968), carrying about 150 vehicles a day.
Good 17.1% · Fair 62.9% · Poor 20.0% of 35 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.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Gravolet Rd over Drainage Canal | 1968 | 150 | Poor |
| Point ala Hache Fe over Miss. River Ferry Ramp | 1960 | 50 | Poor |
| Point ala Hache Fe over Miss. River Ferry Ramp | 1960 | 50 | Poor |
| English Turn Rd over Mississippi River | 2002 | – | Poor |
| Avenue G over Mississippi River | 2002 | – | Poor |
| Martin Ln over Drainage Canal | 1987 | – | Poor |
| Olsen ave over Barriere Road | 1960 | – | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| La 23 over Intercoastal Waterway | 2024 | 39,114 | Good |
| LA0023 over Algiers Outfall C | 1968 | 29,088 | Fair |
| LA0023 over I C Waterway | 1968 | 29,088 | Fair |
| LA0023 over Bayou Barriere | 1955 | 29,088 | Fair |
| LA0023 over Algiers Outfall Canal | 1968 | 25,594 | Fair |
| LA0023 over Bayou Barriere | 1968 | 25,594 | Fair |
| LA3017 over Bayou Barataria | 1971 | 22,518 | Fair |
| LA3017 over Drain Canal | 1997 | 22,518 | Fair |
| LA0406 over Planters Canal | 1977 | 12,412 | Fair |
| LA0406 over Industry Canal | 1977 | 12,412 | 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 Plaquemines Parish → - all 35, 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.