page_title: Stoplogs
hierarchical_section_title: Stoplogs
caption_attribution_description: English: Stoplogs at the entrance of the water pipeline to the turbine of the Dobra hydro power plant in Lower Austria Deutsch: Dammbalken am Einlass in die Triebwasserleitung des Dobrastausees am Kamp in Niederösterreich, aufgenommen von der Mitte der Staumauerkrone
context_page_description: Stoplogs are hydraulic engineering control elements that are used in floodgates to adjust the water level or discharge in a river, canal, or reservoir. Stoplogs are sometimes confused with flashboards, as both elements are used in bulkhead or crest gates. Stoplogs are typically long rectangular timber beams or boards that are placed on top of each other and dropped into premade slots inside a weir, gate, or channel. Present day, the process of adding and removing stoplogs is not manual, but done with hydraulic stop log lifters and hoists. Since the height of the barrier can only be adjusted through the addition and removal of stoplogs, finding a lighter and stronger material other than wood or concrete became a more desirable choice. Other materials, including steel and composites, can be used as stoplogs as well. Stoplogs are designed to cut off or stop flow through a conduit.
context_section_description: Stoplogs are hydraulic engineering control elements that are used in floodgates to adjust the water level or discharge in a river, canal, or reservoir.  Stoplogs are sometimes confused with flashboards, as both elements are used in bulkhead or crest gates.  Stoplogs are typically long rectangular timber beams or boards that are placed on top of each other and dropped into premade slots inside a weir, gate, or channel.  Present day, the process of adding and removing stoplogs is not manual, but done with hydraulic stop log lifters and hoists. Since the height of the barrier can only be adjusted through the addition and removal of stoplogs, finding a lighter and stronger material other than wood or concrete became a more desirable choice. Other materials, including steel and composites, can be used as stoplogs as well.  Stoplogs are designed to cut off or stop flow through a conduit.
caption: Stoplogs of a hydro power plant which can close the water flow to the turbine
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