Drainage Area

{
  "id": "MLC-T-ENV-008505",
  "term": "Drainage Area",
  "field": "Environment",
  "definition": "1. The area that drains to a particular point on a river or stream.\n\n2. Watershed; an area of land that drains to one point.\n\n3. The area upgradient of a source contributing water to the source via overland flow; this area is based on topography, except where overland flow is captured and/or diverted (e.g., storm sewers, run - on control features, walls) around the source. In cases where upland flow is captured or diverted, only the area of the source and areas upgradient of the source between the source and the device or structure diverting overland flow from the source are included in the drainage area.",
  "subject": "Land, waste and cleanup",
  "references": [
    "FEMA Federal Guidelines for Dam Safety: Glossary of Terms",
    "NPS Agriculture Glossary; Nonpoint Pollution Source from Agriculture Glossary",
    "Hazard Ranking System Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/drainage-area/"
}