The city experienced a major flood disaster in 1907 (明治40年の大水害) caused by heavy rain in a typhoon from the night of August 21, 1907 and by deforestation which was accelerated in Yamanashi Prefecture, due to the need for wood for fuel of the steam engines of the growing industrial policy of the Fujimura Prefectural Government. A police officer inspected the stricken area from August 23 to October 10 1907. Patrol diaries of Masaki Tsukasa Kasaburo said "This heavy rainfall causes rivers to run down, landslides and levee failures, bridge piers destruction, etc., resulting in the destruction of homes and villages, village isolation, runoff and runoff, and traffic disruptions caused serious damage. 233 people died, 5757 houses were run out, 650 hectares of lands have been buried or run down, 3353 landslides, collapse and damage distance of about 140 kilometers of levees, runoff and burial of roads, the damage distance was about 500 kilometers, 393 telephone poles collapsed. It was the largest natural disaster in modern times in Yamanashi Prefecture.