Drains (Relief Wells)

{
  "id": "MLC-T-MET-000766",
  "term": "Drains (Relief Wells)",
  "field": "Meteorology and atmospheric science",
  "definition": "In hydrologic terms, a vertical well or borehole, usually downstream of impervious cores, grout curtains or cutoffs, designed to collect and direct\nseepage through or under a dam to reduce uplift pressure under or within a dam. A line of such wells forms a \"drainage curtain\".",
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/drains-relief-wells/"
}