the Xingu would be tall and long and have a structural volume of . It would create the Calha Do Xingu Reservoir which would have a normal capacity of and surface area of . The dam would support a power station and its spillway would serve as the complex's principal spillway with 17 floodgates and a maximum discharge. The dam's reservoir would also divert water into two long canals. These canals would supply water to the Dos Canais Reservoir, which is created within the "Big Bend" by the main dam, Belo Monte (), a series of 28 dykes around the reservoir's perimeter and the Bela Vista Dam () which lies on the Dos Canais Reservoir's eastern perimeter. The Belo Monte Dam would support the main power station in the complex. The power station was to have twenty vertical Francis turbines listed at 550 MW (max 560 MW). Supplying each turbine with water is a , diameter penstock, affording an average of of hydraulic head. The Pimental Dam's power station was to have seven Kaplan bulb turbines, each rated at 25.9 MW and with of hydraulic head. Later the unit count was decreased by using more powerful units (see next section). The Belo Monte Dam would be tall and long and have a structural volume (embankments included) of while the Bella Vista would be high and long and have a structural volume of . The Dos Canais Reservoir would have a normal capacity of , a normal surface area of and a normal elevation area of above sea level. The Bela Vista Dam which serves as the complex's secondary spillway would have a maximum discharge capacity of . Design flaw Shortly before the planned installation of the dam's last (18th) turbine in November 2019, it was revealed that catastrophic failure of the dam was possible due to exposure of an unprotected area of the dam wall to wave action in the then prevailing low water level. In an 11 October 2019 Norte Energia report, the company's CEO requested more water from an intermediate reservoir to add to the dangerously low 95.2 meter water level. Power generation and distribution The planned capacity of Belo Monte is listed at 11,233 MW. It is composed of the main Belo Monte Dam, and its turbine house with an installed capacity of 11,000 MW. The Pimental Dam which also includes a turbine house would have an