100-year flood

{
  "id": "MLC-T-ENV-000005",
  "term": "100-year flood",
  "field": "Environment",
  "definition": "1. The standard used by the National Flood Insurance Program (NFIP) for floodplain management purposes and to determine the need for flood insurance. A structure located within a special flood hazard area shown on an NFIP map has a 26 percent chance of suffering flood damage during the term of a 30-year mortgage.\n\n2. A 100-year flood does not refer to a flood that occurs once every 100 years, but to a flood level with a 1 percent chance of being equaled or exceeded in any given year.\n\n3. Flood that has a 1-percent or greater chance of recurring in any given year or a flood of a magnitude equalled or exceeded once in 100 years on the average over a significantly long period.\n\n4. Standard used by the National Flood Insurance Program (NFIP) for floodplain management purposes and to determine the need for flood insurance. A structure located within a special flood hazard area shown on an NFIP map has a 26 percent chance of suffering flood damage during the term of a 30-year mortgage.\n\n5. \" A flood or storm that has a 1% probability of occurring in any given year. The 100-year flood zone is the extent of the area of a flood that has a 1% chance of occurring or being exceeded in a given year.'",
  "subject": "Water",
  "references": [
    "Coastal Sensitivity to Sea-level Rise Glossary and Acronyms",
    "USGS Water Science Glossary of Terms",
    "40 CFR 258.11 (CFR 2013)",
    "Coastal Sensitivity Glossary",
    "EPA EV-Environmental Events-Emergencies & Disasters"
  ],
  "url": "https://mlchart.com/terminology/environment/100-year-flood/"
}