Alpe (Aller)

Alpe
Location Lower Saxony, Germany
Length 28 kmdep1
Source southwest of Dudensen
52°35′34″N 9°25′12″E / 52.5928833°N 09.419875°E / 52.5928833; 09.419875Coordinates: 52°35′34″N 9°25′12″E / 52.5928833°N 09.419875°E / 52.5928833; 09.419875
Source height 46 m above sea level (NN)
Mouth in Rethem into the Aller
52°47′19″N 9°23′01″E / 52.7884917°N 9.3836167°E / 52.7884917; 9.3836167
Mouth height 18 m above sea level (NN)
Descent 28 m
Basin Weser
Progression Aller Weser North Sea
Right tributaries Lutterer Bach, Neuer Eilter Graben, Schotengraben
Left tributaries Laderholzer Moorgraben, Steimbker Dorfgraben, Moorbeeke, Alpengraben
Small towns Rethem (Aller)
Villages Dudensen, Laderholz

The Alpe is a left tributary of the Aller. Its source lies between the villages of Dudensen and Nöpke, both within the town of Neustadt am Rübenberge. It initially crosses the Dudensen Moor and flows along the edge of the Lichtenmoor and past Rethem Moor. In the 1970s it lost its natural character, it was straightened and, in places, canalised. The Steimbker Dorfgraben, a drainage ditch joining it form the left is very heavily polluted (water quality class III–IV). The Alpe itself has a good overall water quality (class II = moderately polluted).[1] Before the town of Rethem the Weiße Graben ("White Ditch") joins the Alpe along with the Wölpe. In Rethem the Alpe then discharges into the Aller.

References

  1. NLWKN water quality of the Alpe


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