Sauteler Canal
| Sauteler Canal | ||
 Sauteler Canal at the church of Jheringsfehn |
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| Data | ||
| Water code | EN : 392 | |
| location | East Frisia , Lower Saxony , Germany | |
| River system | Ems | |
| Drain over | Ems → North Sea | |
| Origins | constructive at the confluence of Alter Flumm and Oberer Flumm north of v. Mittegroßefehn , hydrographic between Wrisser Hammrich and Kreismoor in Großefehn 53 ° 27 ′ 4 ″ N , 7 ° 38 ′ 13 ″ E |
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| Source height | 8.5 m above sea level NHN (Alte Flumm), confluence 2 m above sea level. NHN | |
| muzzle | in the Ems south of Terborg in the municipality of Moormerland Coordinates: 53 ° 17 ′ 6 ″ N , 7 ° 24 ′ 16 ″ E 53 ° 17 ′ 6 ″ N , 7 ° 24 ′ 16 ″ E |
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| Mouth height | 0 m above sea level NHN | |
| Height difference | 8.5 m | |
| Bottom slope | 0.39 ‰ | |
| length | 21.8 km (by name and constructive), 28.61 (hydrological with the upper course Alter Flumm) | |
| Catchment area | 181 km² | |
| Left tributaries | Upper Flumm, Großefehnkanal, Spetzerfehnkanal, Neue Wieke, Spezerfehnkanal, Bagbander Tief, Jheringsfehnkanal over Beekswieke, Warsingsfehnkanal | |
The Sauteler Canal , also called Sauteler Tief , is a drainage canal built between 1967 and 1989 in the south-west of East Frisia . As a new installation, it is 21.80 km long, hydrographically with the 7.81 km long Alte Flumm a total of 28.61 km. It drains an area of 18,100 hectares (almost 200 square kilometers) and thus slightly more than 1/16 of the total East Frisian land area.
history
During the construction of the Ems-Jade Canal in the 1880s, the Oldersumer Sielacht refused to build a peripheral canal through which the runoff from the upper area should be fed to the new canal. Despite the pumping station built in Oldersum between 1933 and 1935, the low-lying area at the Fehntjer Tief suffered time and again from long-lasting floods. That is why the plans to build a peripheral canal were taken up again in the 1950s. The canal was intended to direct the runoff from the somewhat higher eastern part of the area (foothills of the Auricher Geest and adjacent moor) into the Ems in a more direct way and away from the network of Fehn canals. The Sautelner Canal was built between 1967 and 1989 together with the Sauteler Siel and its pumping station. The channel, which is between 15 and 40 meters wide, is designed for a discharge rate of 150 liters per second and square kilometer. At a mean water level of 0 m above sea level. The water depth is 2.00 to 2.75 meters above sea level . The bottom of the canal falls from 1.3 m below sea level in the upper reaches to 2.75 m below sea level . During the construction of the canal, 1.65 million cubic meters of earth were moved, of which 325,000 cubic meters were used to build the dikes on the canal. Since the catchment area of the pumping station in Oldersum was reduced by the construction of the canal, its output increased from 67 to 117 liters per second and square kilometer (based on mean tidal floods ).
course
The canal begins west of Aurich-Oldendorf at the confluence of the Alter Flumm (classified as its actual upper course) and the 9.23 km long and 7 m above sea-level upper course of the Flumm. It moves away to the southwest at an acute angle from the adjoining section of the Flumm and after 2 km meets the Großefehn Canal , whose upper water it also takes over. After a few hundred meters along the Großefehn Canal, it bends at right angles to the left, takes over the upper water of the Neue Wieke after about a kilometer , then bends from southeast to south to the Spezerfehn Canal , whose water it also takes over and whose course is also clearly interrupted. At the Bagbander Tief (it also drains its upper course) it turns to the west and crosses the main canals of Jheringsfehn at an almost right angle . It then flows first more southwest, then more west and south past Neermoor to the Sauteler Siel with the pumping station of the same name . For the last 6 km, the canal is laid out as a dam river , the water level of which is well above the surrounding terrain, which is drained by parallel ditches.
Surroundings
The Sauteler Canal crosses the villages of Neuefehn , Boekzetelerfehn , Jheringsfehn and Warsingsfehn .
As he later called in a many decades older network of canals in the area Wieke and small ditches were built, most channels whose coming from eastern and southern water he takes over, by a dam or even a set Wehr interrupted after Continue northwest towards Fehntjer Tief.
A few bodies of water cross it in culverts . The most striking is the culvert at the confluence of Alter and Oberer Flumm. Through it, the border ditch coming from Wrisse is connected to the lower part of the Flumm, whose hydrological upper course it forms today. In the further course this body of water becomes the Fehntjer Tief and finally the Oldersumer Sieltief , one of the four most important tributaries of the Ems below the Leda
Sauteler Siel pumping station, land side
Sauteler Canal in Neuefehn
literature
- Rita Badewien, Otto Saathoff, Bernhard Müller: Moormerland in Transition 1973-1998. Edited by the municipality of Moormerland, Verlag Sollermann, Leer 1999, ISBN 3-928612-50-6 .
Web links
Individual evidence
- ↑ a b Lower Saxony environmental maps , layers: DTK 25, Hydrographische Karten III u. IV, water network
- ↑ Umwelt.niedersachsen: Area codes and sizes of the catchment areas in the Ems river system (PDF for download)
- ^ Johann Kramer: Coastal protection and inland drainage between Ems and Weser. In: Johann Kramer, Hans Rohde (edit.): Historical coastal protection. Dyke construction, island protection and inland drainage on the North and Baltic Seas. Konrad Wittwer, Stuttgart 1992, ISBN 3-87919-163-8 , pp. 207-253, here p. 233.
- ↑ Oldersum in the 20th century
- ↑ Kramer, Coastal Protection and Inland Drainage Between Ems and Weser, p. 235.