抄録
Hachiro-Gata is located about 20 kilometers to the north of Akita City, and had an area of 22, 024 hectares.It was the largest lake in Japan next to Lake Biwa.
The reclamation of the polader Hachiro-Gata has been undertaken as a national work in 1957.There were many difficult matters for the civil engineering, and the civil engineers were faced some unusual problems.This is because of the fact that Hachiro-Gata differed previously reclaimed polders in Japan by its muddy soil depth (50m) and its size (22, 000 ha).It is worth mentioning that this work can be considered as a significant event in the world's history of civil enginnering.
After 7 years, Ogata-mura was born as a new model farm village in 1964.The census of the 1982 gives the population of the village as 3, 318, and the farming population is 2, 882.
The aim of this study is to make clear some characters of the reclaimed works from view point of the civil enginnering, and to grasp some social effects of Ogata-mura upon neighboring farm society.
