Weir

{
  "id": "MLC-T-ENV-030268",
  "term": "Weir",
  "field": "Environment",
  "definition": "1. (weer) A wall or plate placed in an open channel and used to measure the flow of water. The depth of the flow over the weir can be used to calculate the flow rate, or a chart or conversion table may be used.\n\n2. A wall or obstruction used to control flow (from settling tanks and clarifiers) to assure uniform flow rate and avoid short-circuiting.\n\n3. A wall or plate placed in an open channel to measure the flow of water.\n\n4. A wall or obstruction used to control flow from settling tanks and clarifiers to ensure a uniform flow rate and avoid short-circuiting.\n\n5. Wall or plate placed in an open channel and used to measure the flow of water. The depth of the flow over the weir can be used to calculate the flow rate, or a chart or conversion table may be used.\n\n6. A W-Weir is an in-stream structure constructed for the purpose of reducing shear stress on streambanks, controlling the grade of the streambed and establishing fisheries habitat. W-Weirs are typically constructed with two rock vanes on opposing sides of the stream channel forming the outside legs and two opposing vanes in the center of the channel to complete the W-Weir.",
  "subject": "Water",
  "references": [
    "Drinking Water Technical & Legal Terms",
    "Terms of Environment; Federal Land Management in the Chesapeake Bay Watershed Glossary",
    "Terms of Environment",
    "Federal Land Management in the Chesapeake Bay Watershed Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/weir/"
}