The water tower - Radio Kootwijk

Besides the main building, Julius Luthmann (1890-1973) also designed the water tower of the transmission complex. The water tower, like Building A, is therefore built entirely in Art Deco style. The tower is made of concrete, with ornate and symmetrical elements. On top of the tower, you can see a large lighthouse light. This used to serve, when the treetops were a lot lower, as a beacon for shipping on the Zuiderzee (later the IJsselmeer).

Inside, the tower has a symmetrical zigzag or protruding staircase to the mezzanine floor typical of the Art Deco style. Continuing across the floors, you can see a long dipstick.
The tower's tank has a capacity of 100,000 litres and is equipped with a float (flotteur), which can be used to read on the dipstick how much water is left in the tank.

The water in the tank was intended as cooling water for the transmitter tubes and as a water supply for the village of Radio Kootwijk. Today, the stored water is a buffer for the fire brigade. In case of fire, the fire brigade can only reach the village after 15 to 20 minutes. Sufficient water is available for bridging that period to put out fixed fires.