Cross Vane

{
  "id": "MLC-T-ENV-006967",
  "term": "Cross Vane",
  "field": "Environment",
  "definition": "Used to provide grade control, keep the thalweg in the center of the channel, and protect the stream bank. A cross vane consists of two rock or log vanes joined by a center structure installed perpendicular to the direction of flow. This center structure sets the invert elevation of the stream bed. Cross vanes are typically installed at the tails of riffles or pools (steep gradient streams) or within long riffle sections to promote pool formation and redirect flows away from streambanks.",
  "references": [
    "EPA and DOI Fish and Wildlife Service Natural Channel Design Review Checklist Stream Mechanics at http://water.epa.gov/lawsregs/guidance/wetlands/upload/Natural_Channel_Design_Checklist_5_16_12.pdf"
  ],
  "url": "https://mlchart.com/terminology/environment/cross-vane/"
}