Dry dam





Nabataean dry dam in Petra Siq, Jordan


A dry dam is a dam constructed for the purpose of flood control. Dry dams typically contain no gates or turbines, and are intended to allow the channel to flow freely during normal conditions. During periods of intense rainfall that would otherwise cause floods, the dam holds back the excess water, releasing it downstream at a controlled rate.[1]


Development of dry dams was pioneered by the Miami Conservancy District which built five such dams[2][3] on tributaries to the Great Miami River to prevent flooding of the Miami Valley and Dayton, Ohio.[2][4]



References




  1. ^ "How a Dam Works". Archived from the original on 2016-03-04..mw-parser-output cite.citationfont-style:inherit.mw-parser-output qquotes:"""""""'""'".mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em


  2. ^ ab "What a Dam Sight".


  3. ^ "Miami Conservancy District flood control project". Archived from the original on 2013-09-01.


  4. ^ Tetsuya Sumi. "DESIGNING AND OPERATING OF FLOOD RETENTION 'DRY' DAMS IN JAPAN AND USA" (PDF).
    [permanent dead link]




See also


  • Levee

  • Hydrology


External links


  • Miami Conservancy District: How a dry dam works

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