Hikagezawa No. 1 Floor Hardening Work

Hikagezawa Middle Basin Floor Hardening Work

Kuzurezawa Inclined Road

Hikage River Upstream Floor Hardening Work

Mannai River No. 14 Dam

Mannai River No. 13 Dam

Mannai River No. 12 Dam

Mannai River No. 11 Dam

Mannai River No. 10 Dam

Mannai River No. 7 and No. 8 Weirs

Nishinoya Irrigation Canal