Plaquemines County Bridge Report Card
Plaquemines County scores 60 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Plaquemines County, Louisiana
Plaquemines County has 35 bridges in the National Bridge Inventory, with 7 rated poor and 0 rated scour-critical. Its poor-condition share of 20.0% is above the 11.2% statewide average. Poor-condition bridges carry about 250 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Plaquemines County a Bridge Condition Exposure Score of 60/100 (D). The county has 35 bridges in the National Bridge Inventory, including 7 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 250 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 20.0% | 40.0 |
| Poor-condition traffic exposure | 25 | 0.1% of measured traffic | 0.1 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 44 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 264,068 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 20.0% |
| State Poor-Condition Share | 11.2% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 44 years |
| Poor-Condition Traffic Exposure | 250 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Plaquemines County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Gravolet RD over Drainage Canal | Poor condition + traffic exposure | Poor | 150 | 1968 |
| Point Ala Hache Fe over Miss. River Ferry Ramp | Poor condition + traffic exposure | Poor | 50 | 1960 |
| Point Ala Hache Fe over Miss. River Ferry Ramp | Poor condition + traffic exposure | Poor | 50 | 1960 |
| Olsen AVE over Barriere Road | Poor condition | Poor | 0 | 1960 |
| Martin LN over Drainage Canal | Poor condition | Poor | 0 | 1987 |
| English Turn RD over Mississippi River | Poor condition | Poor | 0 | 2002 |
| Avenue G over Mississippi River | Poor condition | Poor | 0 | 2002 |
| La 23 over Intercoastal Waterway | High traffic | Good | 39,114 | 2024 |
| La0023 over Bayou Barriere | High traffic | Fair | 29,088 | 1955 |
| La0023 over Algiers Outfall C | High traffic | Fair | 29,088 | 1968 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.