Printed from: https://conservationhandbooks.com/waterways-wetlands/dams-weirs-and-sluices/sluices/
Sluices are channels for conducting water through regulating valves or gates. They may be self-contained or part of larger dams or weirs where the aim is to regulate as well as impound water. Small ponds frequently have sluices at their outlets which function either as single overflows or as the primary overflows on dual systems....