Toe ditch
A ditch at the inner side of a dike to catch the seepage water and discharge it
Source http://www.kennisbank-waterbouw.nl/Glossary/printUK.php?subject=@Зураг
A ditch at the inner side of a dike to catch the seepage water and discharge it
Source http://www.kennisbank-waterbouw.nl/Glossary/printUK.php?subject=@