Alster (Diemel)

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Alster
Data
Water code EN : 4472
location North Rhine-Westphalia , Hesse ; Germany
River system Weser
Drain over Diemel  → Weser  → North Sea
source a pond at stage
51 ° 34 ′ 25 ″  N , 9 ° 18 ′ 17 ″  E
Source height approx.  233  m above sea level NN
muzzle in Lamerden in the Diemel coordinates: 51 ° 31 ′ 36 "  N , 9 ° 19 ′ 42"  E 51 ° 31 ′ 36 "  N , 9 ° 19 ′ 42"  E
Mouth height approx.  139  m above sea level NN
Height difference approx. 94 m
Bottom slope approx. 13 ‰
length approx. 7.2 km
Catchment area 16.116 km²
Small towns Borgentreich , Liebenau

The Alster is an orographic left or northern tributary of the Diemel in North Rhine-Westphalia and Hesse, almost 7.2 km long . It runs in the districts of the towns of Borgentreich in East Westphalia and Liebenau in North Hesse .

Course and catchment area

The Alster rises in the East Westphalian district of Höxter in the Teutoburg Forest / Eggegebirge Nature Park in the Warburg Börde . Its source is in the village of Bühne , an eastern district of Borgentreich . It flows a little north-northeast of the Alsterhalle at around 233  m above sea level. NN located pond in which there is a quite large island ( 233.9  m above sea level ). About 200 m downstream, a brook, also called the Alster , flows into Bühne , around 1.9 km long, which is north-northeast of the village in the parcel Auf dem Lammert at about 261  m above sea level. NN  ( ⊙ ) arises.

Initially, the Alster flows southeast out of the village of Bühne and passes a sewage treatment plant and four fish ponds. Below where the stream turns to the south are the Höppermühle , Lutzenmühle and Bessenmühle . Between the last two water mills mentioned , she passes the Borgentreich village of Muddenhagen, a little to the east of her . Further south, the Alster forms the border with the northern Hessian district of Kassel over a length of about 2.5  kilometers . At the same time, it runs along the nature park boundary, and there it passes a limestone quarry .

After final exit of the nature park Teutoburg Forest / Egge reached the now flowing in Northern Hesse Alster after passing the chalk mill and a new mill which to Liebenau belonging Lamerden where it the fairytale land crossed. After flowing through the village it empties at about 139  m above sea level. NN into the Weser tributary Diemel coming from the southwest there .

The catchment area of the Alster with a few rivulets as tributaries is 16.116 km² in size.

Localities

Villages on or near the Alster are (viewed downstream):

  • Stage - district of Borgentreich, North Rhine-Westphalia (source location)
  • Muddenhagen - district of Borgentreich, North Rhine-Westphalia (a little away from the Alster)
  • Lamerden - district of Liebenau, Hessen (estuary)

Individual evidence

  1. ↑ a b c d e f g Topographical Information Management, Cologne District Government, Department GEObasis NRW
  2. ↑ a b Water map service of the Hessian Ministry for the Environment, Climate Protection, Agriculture and Consumer Protection ( information )