Toe drain (or outfall)
A drain which carries seepage away from the dam and can allow seepage quantities to be measured.
Source http://www.nws.noaa.gov/om/hod/SHManual/SHMan014_glossary.htmЗураг
A drain which carries seepage away from the dam and can allow seepage quantities to be measured.
Source http://www.nws.noaa.gov/om/hod/SHManual/SHMan014_glossary.htm