Overview of Shin-Maruyama Dam Construction

Construction name: 2020 Shin-Maruyama Dam main body construction first phase construction work
Client: Ministry of Land, Infrastructure, Transport and Tourism Central Regional Development Bureau Shin-Maruyama Dam Construction Office
Construction site: (Right bank)Yaotsu area, Yaotsu-cho, Kamo-gun, Gifu Pref (Left bank)Kowasawa area, Mitake-cho, Kani-gun, Gifu Pref.
Construction period: January 29, 2021 to March 31, 2025　* Construction period for the first phase of construction only
Contractor: Obayashi, Oomoto, Ichikawa special construction consortium
Construction overview: Dam type: Concrete gravity dam(dam height 118.4m, crest length 340.3m)

Shin-Maruyama Dam is a multi-purpose dam to be constructed on the border of Yaotsu Town, Kamo County, Gifu Prefecture, and Mitake Town, Kani County, on the Kiso River in the Kiso River system.
This is a renovation project to construct a dam with a height of 20.2 m located 47.5 m downstream of the existing Maruyama Dam to improve power generation and flood control functions.

Shin-Maruyama Dam Construction Office (Ministry of Land, Infrastructure, Transport and Tourism) Go to website(Available only in Japanese)