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  • National Inventory of Dams Low-Head Dams Inventory
    National Inventory of Dams The National Inventory of Dams includes more than 90,000 dams in the U S Visit the NID
  • Low-Head Dams Inventory
    Low-Head Dams Inventory The Low-Head Dam Inventory includes low-head dams initially collected by the Low-Head Dam Inventory Task Force This initial data set builds on prior efforts by several universities, states, government, and non-governmental partners who worked to collect information on where low-head dams are located It provides users with the ability to search for low-head dams and
  • Frequently Asked Questions
    Dams listed in the National Inventory of Dams meet the following criteria: Dams where downstream flooding would likely result in loss of human life Dams where downstream flooding would likely result in disruption of access to critical facilities, damage to public and private facilities, and require difficult mitigation efforts Dams that meet minimum height and reservoir size requirements
  • Purpose - nid. sec. usace. army. mil
    The U S Army Corps of Engineers maintains the National Inventory of Dams and publishes available data on many types of dams, now including a low-head dam dataset Publishing information about low-head dams in the U S is an important step to helping people understand the dangers of low-head dams and support actions to improve safety
  • History of Low-Head Dams - nid. sec. usace. army. mil
    Tracking low-head dams in the U S There has been no process in place to track the quantity, condition, or location of low-head dams across the U S However, in 2022 Congress authorized the development of a national low-head dam inventory in an effort to improve oversight of and safety near low-head dams The low-head dam inventory is intended to include the location, ownership, description
  • National Inventory of Dams
    National Inventory of Dams More than 90,000 dams nation-wide Search for dams by name, location or address The user will be presented with search suggestions Select from the suggested searches to link directly to a dam, find dams by location, or find dams near an address
  • Managing Low-Head Dams - nid. sec. usace. army. mil
    Inventory and inspect Ensure locations and conditions of low-head dams are known and shared with others to inform safety decisions The Low-Head Dam Inventory is a great step forward in sharing this data but more work is needed to verify and add more dams and improve the quality of available information
  • Site Features - nid. sec. usace. army. mil
    Overview Data in the Low-Head Dam Inventory is based on information collected by the National Low Head Dam Inventory Task Force – which included professionals from a variety of organizations including Brigham Young University, the American Society for Civil Engineers, and the Association for State Dam Safety Officials The U S Army Corps of Engineers completed minimal review of this data to
  • Frequently Asked Questions
    The Low-Head Dam Inventory is a national dataset that captures low-head dams in the U S Dams included must meet the following definition: A river-wide artificial barrier that generally spans a stream channel, blocking the waterway and creating a backup of water behind the barrier, with a drop off over the wall of not less than six inches and no more than 25 feet





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