The city Bydgoszcz Brda river flows, but the present inhabitants of Bydgoszcz not even speculate how many of her problems in the past.
From early medieval inhabitants of Bydgoszcz used the power of water flowing in Brdo and team it is not just for transportation, but also to work on napędzeniu cereal mills, and later the mint and sawmills. Probably the first settlers lured to the area's current Bydgoszcz Brda River, rather unusual in the course of the riverbed near Bydgoszcz - split into several smaller branches. This is obviously presumed no sure thing, because we do not have any relationship with those times. But we know with certainty that the Brda was very severe and capricious river, and the amplitude fluctuations of the water was very high.
from medieval sources, the difference between the highest and the lowest in a year in the river water level reached up to 5 m. In other relationships, it is concluded that the water in the river never froze. These are the writings of monk - St. Bernard at the turn of the sixteenth and seventeenth centuries, who did not have to be familiar with the hydrology and locji rivers. He enrolled for example, that fish from Brda are delicious, but his remark about not freezing river indicates that its level, even in winter, often changing and the frost could not disable it, because these changes could not keep up. Of course, not every year fluctuations of the river were enormous. Suppose that 5 m is the value of the extreme and suppose that the average amplitude of the fluctuations in the level of the river was "only" 3 meters.
hard for us to imagine what a powerful and nieujarzmionym element was such a river in the Middle Ages. The first settlers in these areas and by the later inhabitants of Bydgoszcz have to think about it with great reverence and pious constant fear. They were forced to live in accord with its capricious rhythm and frequent flooding. Certainly, trying to protect their homes and flood embankments primitive, and their lives were measured out the next flooding river. Stubborn old stay of Bydgoszcz Brda reflects only that derive from it considerable benefits:
1) river fed them fish, 2) provided transport and communications with the cities on the Vistula, facilitated finding markets and enable trade in grain, salt, wax, honey, leather, and then beer, wood, and even pots. 3) The river allowed them to use their power when already partially learned to subjugate it. In the latter case, helped them to nature itself. When using a medieval technique was not possible subjugation of such a variable and powerful river, flowing one trough, but because they split into at this point into several smaller branches, easier for them to be shaped. They had, however, the inhabitants of Bydgoszcz to come to terms with its frequent floods.
Later tried to tame the river, the Prussians, who gospodarzyli in the partitions. Bydgoszcz turned in a great resort with the construction of Bydgoszcz Canal, the railway junction and the seat of government. The Brda but not to the end they succeeded, the water continued to flood the lowest situated districts. Podtapiała buildings in the city center and pour into the streets and was so until 1960.
Luckily there was no time in our country so many eco - terrorists, and even if they were environmentalists, it had no such influence as it is now. The fact is that in 1960 completed the construction of a dam on the Brdo area Koronowo. At the cost of a flood one village and the forest was a huge water reservoir with an area of \u200b\u200bover 13 square kilometers. It is now home to many species of birds and fish, as well as over-breeding of beavers, which foresters can not cope.
Lagoon Water drained from the power supplies in Samociążku-also near Koronowo - falling from a height of turbines 25 meters. It is at this moment the second, the hydroelectric power plant in Wloclawek, Poland in terms of quantity of electricity produced. Since putting the dam in Bydgoszcz ended up flooding.
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