Bocholter Aa

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Bocholt Aa
Aa strand
Pleystrang of the Bocholter Aa at the Bocholter Aasee

Pleystrang of the Bocholter Aa at the Bocholter Aasee

Data
Water code DE : 9282
location Germany

Netherlands

River system Rhine
Drain over Oude IJssel  → IJssel  → IJsselmeer
River basin district IJssel
origin Confluence of the Schwarzer Bach (4.3 km) and the Weißer Vennbach (5.4 km) at Velen
51 ° 52 ′ 59 ″  N , 6 ° 59 ′ 28 ″  E
Source height 55.5  m above sea level NN
muzzle near Ulft in the Oude IJssel Coordinates: 51 ° 53 '4 "  N , 6 ° 23' 17"  E 51 ° 53 '4 "  N , 6 ° 23' 17"  E
Mouth height 15  m NAP
Height difference 40.5 m
Bottom slope 0.73 ‰
length 55.8 km (including 5.4 km of the White Vennbach)
Catchment area 536.372 km²
Drainage at the Rhedebrugge gauge MQ
 2.72 m³ / s
Left tributaries u. a. Borkener Aa , Seegraben
Right tributaries u. a. Knüstingbach , Rheder Bach
Flowing lakes Aasee
Medium-sized cities Borken , Bocholt
Small towns Velen , roadstead

The Bocholter Aa ( Aa-Strang on the Dutch side ) is an approximately 51 km long tributary of the Issel , which flows from the Borken district into the Dutch Achterhoek .

course

The small river is created in Velen in the western Münsterland between Borken and Coesfeld through the confluence of the short Thesingbach , Vennbach and Black Bach .

Bocholter Aa between Bocholt and Suderwick
Aa right on the border with the Netherlands

From there the Bocholter Aa flows in a westerly direction, leaving the ridge of the mountains to the left. Via Borken , past the Pröbstingsee and Rhede , it reaches Bocholt , where it flows past the Aasee on the eastern edge of the city . In the center of Bocholt, the New Town Hall is located on an artificial island in the river, which was included in the historical city fortifications until the 19th century. In a north-westerly direction, the Aa reaches the German-Dutch border at Suderwick. For about two kilometers it is a border river and then finally reaches the Netherlands, where after only another five kilometers it flows into the much smaller Issel , called Oude IJssel , as the Aa-strand near Ulft .

A 58-kilometer cycle path known as the aa route leads near the river from Velen via Ramsdorf , Gemen , Borken, Rhede, Bocholt, Isselburg to Anholt . The aa route is part of a cross-border cycle route network , which also includes the berkel , slinge and ijssel routes . The cycle paths offer six round trips and can be combined with each other.

See also

Web links

Commons : Bocholter Aa  - collection of images, videos and audio files

Individual evidence

  1. ^ German basic map 1: 5,000
  2. ↑ Topographic map 1: 25,000
  3. ↑ a b Topographical Information Management, Cologne District Government, Department GEObasis NRW
  4. ↑ Rhine river basin district / Issel catchment area ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / daten.flussgebiete.nrw.de
  5. ↑ See Achterhoek and Westmünsterland rivers .
  6. ↑ Bocholter Aa. (PDF; 2.8 MB) 58 km bike path in the region. European Agricultural Fund for Rural Development, accessed on May 21, 2011 (German, Dutch).
  7. ↑ river landscape rivierenlandschap achterhoek · westmünsterland. (PDF; 5.3 MB) Four beautiful bike tours. Retrieved November 3, 2011 .