Show Roman Dikes The he dikes which prote protect the Nether lands hinds from the North sea l In man cases go back lck to Roman nomaD tim times MM are raised as ns much as 40 feet abote water high mark and are wide enough at it th the top for a g general roadway o Or canal They are made of earth M Pro te tc ted by stone slopes and by pU pj pL and at the more dangerous poInts artificial structures of ot 1 laden with n stones The West dike Is feet feel long and has a set sea ward vard slope slop of feet On a n ridge 33 feet wide are a roadway anti and a rail rag way |