Other dams that were once on postage stamps are all major large dams in Japan: Sakuma Dam (the Tenryu-gawa River), Ogochi Dam (the Tama-gawa River), Kurobe Dam (the Kurobe-gawa River), and Nukui Dam (the Takiyama-gawa River).
ダムが切手の図案に選ばれたのは佐久間ダム（天竜川）・小河内ダム（多摩川）・黒部ダム（黒部川）・温井ダム（滝山川）と他には日本屈指のハイダムしかない。