Complete set of construction drawings of small river bed hydropower station, vertical unit, including details of flap gate dam and buildings on both banks, including transverse section of gate dam, structural details of flap gate, layout plan of gate dam, transverse section of gate dam, structural details of flap gate, details of retaining wall, plan of generator floor, plan of turbine floor, transverse section of powerhouse (A-A), transverse section of powerhouse (B-