November 10, 1944: The line between Yamabana Station (currently called Takaragaike Station) and Nikenchaya Station became a single track for the delivery of supplies for the war.
1944年（昭和19年）11月10日山端（現・宝ヶ池駅）～当駅間が、戦争に伴う資材供出のため単線化。