The third and youngest water tank was placed on a higher terrace of the western part of the complex, below today's Roubalova Street. It was completed in 1917 and consists of two adjacent tanks made of monolithic concrete, supported by a system of 87 concrete pillars. The northern tank has almost a square layout of 35 × 30 m, the larger southern tank has a rectangular layout of 45 × 30 m. The volume of both tanks is 15 million liters. Both tanks are connected by a large chamber accessible from the east side of the building. They were built by the company Pittel+Brausewetter according to the plans of the technical and design department of the Brno Municipal Waterworks. Both tanks have been preserved to the present day in excellent technical condition and are characterized by an incredibly long echo.
Designer
Brno Municipal Waterworks
Volume
15 million liters
Dimensions
Northern tank:
35 × 30 m
Southern tank:
45 × 30 m
Material
Monolithic concrete
From the preserved drawing documentation, several construction curiosities can be seen, one of which concerns the foundation of the entire construction directly. After digging a huge pit from the surface of the parcel, workers hit rock substrate. The rock made of quartz conglomerates of the rock called Helgoland is yellow-orange to reddish in color and probably gave the name to Žlutý kopec (Yellow Hill). To lay the foundations of the water tanks, thousands of cubic meters of this rock had to be excavated and the bottom carefully leveled with concrete. Only then was it possible to concrete the supporting structure of the floors and walls of the water tank. Both tanks were insulated with a soil embankment of 120–150 cm thickness, and thus the water tank was completed.
Czech 
English 
German 
Polish 
