Open Top Dike A diked aboveground tank in which the dike is open to the elements at the top. See also PEI/RP800. By rhys|2014-10-22T00:54:00+00:00October 22nd, 2014|Comments Off on Open Top Dike Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkXingEmail About the Author: rhys