Warmenau (river)

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The dammed Warmenau in front of the Martmühle in Spenge

The dammed Warmenau in front of the Martmühle in Spenge

Water code EN : 4666
location District of Gütersloh and District of Herford , North Rhine-Westphalia ; District of Osnabrück , Lower Saxony ( Germany )
River system Weser
Drain over Else  → Werre  → Weser  → North Sea
source at the Teutoburg Forest in Werther
52 ° 4 '47 "  N , 8 ° 25' 3"  E
Source height approx.  122  m above sea level NHN
muzzle to Groß Aschen in the Else coordinates: 52 ° 11 '18 "  N , 8 ° 30' 23"  E 52 ° 11 '18 "  N , 8 ° 30' 23"  E
Mouth height approx.  65  m above sea level NHN
Height difference approx. 57 m
Bottom slope approx. 3.1 ‰
length 18.5 km
Catchment area 78.926 km²
Left tributaries Graben Vossheide , Wissmannsbach , Hobebach , Krumkebach , Spenger Mühlenbach , Eselbach
Right tributaries Spenger Mühlenbach
Medium-sized cities Melle
Small towns Werther , Spenge
The Warmenau on the border near Wallenbrück

The Warmenau is an 18.5 km long, southern and right tributary of the Else . It rises in Werther in North Rhine-Westphalia , flows largely on the borders of the Westphalian districts of Gütersloh and Herford to the Lower Saxony district of Osnabrück and flows on the border from Melle (Lower Saxony) to Bünde (Westphalia).



The Warmenau rises in the Westphalian district of Gütersloh on the northeastern roof of the Teutoburg Forest. Its source is in the north of the city of Werther at about 122  m above sea level. NHN between Gerhart-Hauptmann- Strasse in the west, which is located in a residential area, and Esch Strasse in the east, which runs through an industrial park . The Schwarzbach rises 2.3 km southwest of the Warmenau spring south of the Werther town center .

Initially, the Warmenau flows north between the rural Werther districts of Häger in the east and Rotenhagen in the west. When the Vossheide trench flows into it , it reaches the border with Lower Saxony, on which it lies between Hengstenberg , located in the Westphalian district of Herford , a locality of the district of Bardüttingdorf belonging to the city of Spenge , and Neuenkirchen , a district of the Lower Saxony district of Osnabrück City of Melle , which runs in the northwest.

After the Warmenau has flowed for around 400 m only on the Westphalian side before Hengstenberg, it passes the Königsbrück Castle ( 86.1  m ), which is located on the Lower Saxony side, a little before the confluence of the Wißmannsbach at Bach river kilometer  11.4 , from where it follows Northeast pans. After then flowing into the Hobebach (Lower Saxony) and passing the opposite Heinrichsee ( 79.5  m ), it flows between the Spenger district of Wallenbrück in the east-southeast and Schiplage-St. Annen , a district of Neuenkirchen in the west-north-west. Shortly afterwards, the Warmenau passes the Warmenau estate ( 76.5  m ) located on the Lower Saxony side at the river kilometer 7.5 and feeds its moat; here the Warmenau passes under a house on the national border.

After the confluence of the Lower Saxon Krumkebach stream , the Warmenau runs entirely in Lower Saxony for about 350 m and then flows back to the state border. Then it takes up between the Spenger district Nordspenge in the south-southeast and Hoyel , a locality of the Meller district Riemsloh , in the north-northwest the Spenger Mühlenbach and the Eselbach . Then the Warmenau passes the Martmühle ( 74  m ) and the settlement of Balgerbrück ( 72  m ), both of which are located in the Mell area. It then flows between Klein-Aschen , a locality of the Spenger district of Hücker-Aschen , and the Meller district of Groß Aschen in the west, only to run again shortly afterwards along a 1 km stretch in Lower Saxony.

Then the Warmenau flows at about 65  m altitude into the Werre tributary Else coming from the west and flowing there on the national border  - at the Else river kilometer  15.3). Opposite its mouth is the Ahle district of the city of Bünde in the Westphalian district of Herford .

Catchment area and tributaries

The catchment area of the Warmenau is 78.926 km². It extends in North Rhine-Westphalia and Lower Saxony between the Teutoburg Forest and the Else in the Ravensberger Mulde . The tributaries of the Warmenau include (viewed downstream):

Surname page Length
( km )
Source Muzzle Stat.
( km )
( km² )
height ( m above sea  level )
Graben Vossheide
Left 2.9 138 90, 0 13.4 4666-16
Wissmannsbach Left 4.2 112 81.5 10.6 4666-18
Left 4th, 0 111 78.6 8.7 3.402 4666-2
Krumkebach Left 3.5 89 75.5 6.9 4666-32
Spenger Mühlenbach right 6.9 127 73.9 5.2 4666-4
Donkey brook right 3.1 103 73.2 4.8 4666-92


On its way from the source to the mouth, the Warmenau flows through the areas of the following cities, or it runs along their borders (viewed downstream):

  • Werther , Gütersloh district, North Rhine-Westphalia
  • Spenge , Herford district, North Rhine-Westphalia
  • Melle , district of Osnabrück, Lower Saxony

Nature reserves

Overview map of the Warmenau nature reserve with the partial areas Martmühle (bottom left) and Strangfeld (top right)

The Warmenau flows through or grazes two nature reserves (viewed downstream):

  • The Turenbusch nature reserve ( CDDA no. 165975) is located in the urban area of ​​Spenge - immediately east of the border with Lower Saxony. It has been designated since 1989 and covers 29.05  hectares . The valley of the Warmenau is here at Bardüttingdorf as a typical Siek for the Ravensberger Land . In addition to alluvial forests ( alder forest ), wetlands and green meadows, the Siek includes several other flowing and still waters as well as beech forests on the valley slopes . The smaller rivers that flow into it run in natural notch valleys that have not been transformed into the Siek. The European tree frog is the only place in the Herford district in the nature reserve .
  • The nature reserve Warmenau (CDDA No. 166170; HF-014) is 27.02 hectares and is also located in the Spenger urban area - immediately southeast of the border with Lower Saxony. It has been designated since July 1, 1989 and consists of two spatially separated and closely successive partial areas; Martmühle and Strangfeld. It is a natural floodplain in the valley of the meandering Warmenau, which is cut about 2 m deep into the landscape. There is a small body of still water in the wet grassland along the stream.


The Warmenau marked the border between France and the Kingdom of Westphalia between 1807 and 1811 and was the state border between the Kingdom of Hanover and the Prince Diocese of Osnabrück and Prussia for a long time before and after .


The Warmenau on the border near Wallenbrück
The Warmenau after the flow of the Martmühle in Spenge ; also here on the national border

Individual evidence

  1. a b c d e German basic map (DGK 5) in Topographical Information Management, Cologne District Government, Department GEObasis NRW ( information )
  2. a b c Topographical Information Management, Cologne District Government, Department GEObasis NRW ( information )
  3. a b c d Water directory of the State Office for Nature, Environment and Consumer Protection NRW 2010 (XLS; 4.67 MB) ( Notes )
  4. Stat. = Water stationing in Topographical Information Management, Cologne District Government, Department GEObasis NRW ( information )
  5. orifice layer (at / near) the tributaries according to the flowing water kilometrage of Warmenau
  6. For a better overview and sorting downstream, a hyphen has been inserted for each river in the water code number (GKZ) after the number "4666", which stands for the Warmenau .
  7. a b Map services of the Federal Agency for Nature Conservation ( information )

See also

Web links

Commons : Warmenau  - collection of images, videos and audio files