Water from post drainage used to irrigate farm land was taken into consideration, with water drained using pumps and with landfills filled only to the degree that the bottom of the pond was filled with earth from Ogura-zutsumi Dike and islands dotting the pond.
干拓後の農地における用水利用を考慮し、池の底部を小倉堤や池に点在した島で埋めた程度で、ほとんどがポンプを用いた排水によって干拓された。