Environmental Risk Report for Harahan, Louisiana
Comprehensive environmental hazard assessment
Population: 9K • Coordinates: 29.9374°N, 90.2031°W • County: jefferson
Risk Assessment for Harahan, Louisiana
About Harahan, Louisiana
Harahan is home to approximately 9K residents and features a humid subtropical climate with hot summers, mild winters, and heavy rainfall. Its coastal location provides beautiful scenery but also creates unique vulnerability to storm surge and coastal flooding.
Harahan's most significant environmental threat comes from hurricanes and tropical storms. The region's exposure to warm Gulf of Mexico waters provides energy for storm intensification, and the flat topography offers little resistance to storm surge. Historical events have demonstrated the catastrophic potential of these storms, driving continuous improvements in building codes, flood protection, and emergency response systems.
Notable historical events affecting this area include the 1965 Hurricane Betsy (Category 4, 76 deaths, first billion-dollar hurricane in US); the 2005 Hurricane Katrina (Category 3 at landfall, 1,800+ deaths, catastrophic levee failures in New Orleans); the 2021 Hurricane Ida (Category 4, 107 deaths, $75B damage, knocked out power to all of New Orleans). These events underscore the importance of environmental risk awareness and preparedness for residents and property owners.
Louisiana's network of bayous, wetlands, and low-lying terrain makes it one of the most flood-prone states in the nation. Coastal erosion is consuming approximately a football field of land every 100 minutes, reducing the natural buffer against storm surge. The state's levee and flood protection systems are among the most complex engineering projects in the world.
Notable Historical Events in Louisiana
Understanding Risk Factors for Harahan
🌊 Flood Risk
Harahan faces significant flood risk due to its coastal location. Storm surge from hurricanes and tropical systems can push water miles inland, while heavy rainfall events strain local drainage systems. FEMA flood zone maps identify multiple high-risk areas, particularly in low-lying neighborhoods near the coastline and waterways.
🌀 Hurricane Risk
Harahan faces direct hurricane exposure along the Gulf Coast. The Atlantic hurricane season (June–November) brings the threat of Category 3–5 storms capable of catastrophic wind damage and deadly storm surge. Evacuation planning and building codes reflect this persistent threat, with many structures built to withstand major hurricane-force winds.
💨 Air Quality
Air quality monitoring in Harahan draws from EPA AirNow sensors measuring particulate matter (PM2.5), ozone levels, and other pollutants that affect respiratory health. Seasonal variations and agricultural or industrial activity can influence local air quality.
🔥 Wildfire Risk
Wildfire risk evaluation considers vegetation density, climate conditions, historical fire data, and terrain characteristics in Harahan. Seasonal weather patterns and local land management practices influence the area's fire vulnerability.
Environmental Risk Reports in Louisiana
Check risk scores for 16 nearby cities — flood, earthquake, wildfire, hurricane and air quality data
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