Russengraben (Potsdam-Mittelmark)

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Russengraben
The Russengraben west of the Radeweg

The Russengraben west of the Radeweg

Data
Water code DE : 585692
location Potsdam-Mittelmark district , Brandenburg , Germany
River system Elbe
Drain over Beetzsee  → Havel  → Elbe  → North Sea
source In the north of the Marzahner Fenn in the city of Havelsee
52 ° 31 ′ 20 ″  N , 12 ° 34 ′ 32 ″  E
muzzle at Radewege in the Beetzsee coordinates: 52 ° 28 ′ 36 ″  N , 12 ° 34 ′ 0 ″  E 52 ° 28 ′ 36 ″  N , 12 ° 34 ′ 0 ″  E
Mouth height 28.5  m above sea level NN

length 8 km [1]
Catchment area 18.66 km² [2]

The Russengraben is an artificially created flowing body of water in the Potsdam-Mittelmark district . It was created in 1917 to regulate the Marzahner Fenn , an Ice Age wetland area by Russian prisoners of war. It also drains several anthropogenic lakes into the Beetzsee .

course

The nearly eight kilometer long ditch begins as a drainage ditch in the north of the Marzahner Fenn, a soft ice age, flat-valley glacier tongue basin and boggy wetland. The Fenn is located in the north of the Potsdam-Mittelmark district, part of the city of Havelsee and the municipalities of Beetzsee and Beetzseeheide , extends from northeast to southwest and has no natural runoff. The Russengraben initially runs in a south-easterly direction to the bottom of the valley, where it swings 90 degrees to the south-west and then follows the course of the valley. In this it absorbs plenty of water from the moor. This water is fed in through a large number of side ditches. In the center there is a rectangular lake that was formed in a former peat cut . At the end of the valley, the Russengraben was laid underground. It leads under a chain of hills between Schwarzen Berg and Eichberg. The direction of flow of the trench is changed again. After emerging again, the water of the trench flows in a south-easterly direction.

In the further course the road 981 is first crossed. South of this, the Russengraben reaches the Radeweg Erdelöcher, a multitude of smaller lakes. These formed in former clay pits after they were exhausted and abandoned. In this area, the water from another drainage ditch, which supplies water from wetlands and clay pit lakes to the south, is also taken up. Below the holes in the earth, the Russengraben crosses a municipal road before it joins the Beetzsee .

In total, the moat has a catchment area of ​​18.66 square kilometers. In the course of the trench there are four weirs that help regulate the water level and discharge of the Marzahner Fenn, in it are three of the four weirs, and the Radeweger Erdelöcher and, if necessary, should prevent water from flowing back during floods in the course of the Havel. The first weir is in the north, the second in the center in front of the Torfstichsee and the third in the south of the Marzahner Fenn. A fourth and final weir was installed between the mouth and the holes in the ground below the embankment of the communal road.

Animals native to the Russengraben are for example otters , grass snakes , various frog and tailed amphibians , smaller and in the area of ​​the Radeweg earth holes and in the estuary area also larger fish and beavers .

Protected areas

The entire length of the Russians digging in is conservation area Westhavelland and Westhavelland Nature Park . The Marzahner Fenn is designated as a nature reserve and protected landscape component. The Radeweg earth holes are also protected as a protected landscape component.

gallery

  • The peat lake in the Marzahner Fenn

  • Route of the underground course

  • Weir 4

  • Bite marks of a beaver in the mouth area

Individual evidence

  1. ↑ History of the "Russengraben" . Accessed July 18, 2014.
  2. ^ Partial sheet Northwest Surface Waters. (PDF) In: Landkreis Potsdam-Mittelmark landscape framework plan. Office for Environmental and Landscape Planning, archived from the original on August 7, 2011 ; Retrieved October 16, 2013 .
  3. ↑ Part sheet Northwest Protected Areas. (PDF) In: Landkreis Potsdam-Mittelmark landscape framework plan. Office for Environmental and Landscape Planning, archived from the original on August 7, 2011 ; Retrieved October 16, 2013 .