Mannai River No. 1 Weir

Mannai River No. 3 Weir

Mannai River No. 4 Weir

Mannai River No. 6 Weir

Nishinoya Irrigation Canal

Mannai River No. 7 and No. 8 Weirs

Mannai River No. 10 Dam

Mannai River No. 11 Dam

Mannai River No. 12 Dam

Mannai River No. 13 Dam

Mannai River No. 14 Dam