Rott (Amper)
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Rott upper course : Rottgraben |
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 The Rott at Stillern |
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| Data | ||
| Water code | DE : 164316 | |
| location | Bavaria ; Weilheim-Schongau district and Landsberg am Lech district | |
| River system | Danube | |
| Drain over | Ammersee → Amper → Isar → Danube → Black Sea | |
| source | at Polling -Kugelsbühl 47 ° 49 '55 " N , 11 ° 4' 46" O |
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| Source height | approx. 610 m above sea level NHN | |
| muzzle | near Dießen from the south in the Ammersee Coordinates: 47 ° 57 '3 " N , 11 ° 7' 23" E 47 ° 57 '3 " N , 11 ° 7' 23" E |
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| Mouth height | 533 m above sea level NHN | |
| Height difference | approx. 77 m | |
| Bottom slope | approx. 4.1 ‰ | |
| length | 18.7 km with OL Rottgraben | |
| Catchment area | 82.56 km² | |
| Discharge at the Raisting A Eo gauge : 55.4 km² Location: 4 km above the mouth |
NNQ (January 15, 1964) MNQ 1951–2006 MQ 1951–2006 Mq 1951–2006 MHQ 1951–2006 HHQ (May 21, 1999) |
30 l / s 171 l / s 858 l / s 15.5 l / (s km²) 22.9 m³ / s 56.5 m³ / s |
| Reservoirs flowed through | Zellsee | |
The Rott is an approximately 19 km long, southwest tributary of the Ammersee near Dießen in the Landsberg am Lech district in Bavaria .
course
The Rott rises as Rottgraben west of Polling -Kugelsbühl in the district of Weilheim-Schongau , runs half a kilometer to the west and then about one and a half kilometers northwest to the inlet of a tributary of approximately the same length from the south at Wessobrunn -Blaik, in the direction of which it then continues north . After just a few steps, the Schrallengraben runs to the left , which is significantly higher up on the upper slope of the Schrallenwald east of Wessobrunn-Burgstall, and a little later from the same side the Ulrichbach . Further down, it feeds the elongated Zellsee near the municipality's Moosmühle . After its northern tip at the Sähmühlensiedlung Weghaus von Weilheim in Upper Bavaria , the Schlittbach flows from the left , which arises west of Wessobrunn and is fed by many short sloping streams in the south. From here on the water is now called Rott .
In a damp meadow the Rott now moves further north between the forest areas Lichtenau right and Stiller Wald left, already at the beginning the Mühlbach reaches the Rott from the side of the Stiller Wald , soon afterwards the Steingraben , which runs through it from its southwestern edge at the Wessobrunn village Haid . Before the hamlet of Stillern in der Aue, the first district of Raisting on the left bank, the Kohlgraben flows from the left , roughly the border between the Stiller Forest and the Bayerdießen forest to the north . Then the Rott, after having turned to the north-northeast, takes up the Rehgraben and the more important Michelbach from this large forest area in quick succession . At its mouth, the forest ends on both sides and the water enters the corridor landscape around Raisting, which it then runs through just on the eastern edge. The Rott passes the Ertlmühle , which adjoins the village to the north , where a weir dams the water and the Möslegraben feeds the mill pond from the left slope. Immediately afterwards it is crossed by the Weilheim- Augsburg railway line and the district road 9 of the Weilheim-Schongau district , next to the road bridge at the hamlet of Rothbad there is a water level from the Weilheim water management office, immediately afterwards the Ammertal plane runs from the left slope , where the Rott is already here flows from a small ravine to the moat .
Then the Rott flows through the flat land south of the Ammersee, which is crossed by drainage ditches and drained further south. There she meets the very meandering Old Ammer , who is coming from the right . This Old Ammer is the former lower course of the Ammer , which was separated from it about two kilometers southeast of the confluence in the years 1920-1924 after a new river bed had been dug for the Ammer. After the correction, the oxbow lake did not pass through, but has been receiving some water from the Ammer again since 2002 through a steel pipe under the Ammerdeich, the average amount of which, however, still clearly exceeds the standard amount of water from the Rott. From the official side, the river bed of the former Ammer lower reaches from the confluence is now part of the Rott. The Rott flows in this just under three kilometers north and flows at the tip of a narrow, more than half a kilometer long silting peninsula east of Dießen and now in the Landsberg am Lech district into the Ammersee , which is then drained by the Ammer , now known as the Amper .
Tributaries
- Schrallengraben (left)
- Ulrichbach (left)
- Schlittbach (left)
- Mühlbach (left)
- Stone trench (left)
- Kohlgraben (left)
- Rehgraben (left)
- Michelbach (left)
- Möslegraben (left)
- Moat (left)
- Old bunting (right)
Classification
From the confluence of the Michelbach to the confluence with the Ammersee, the Rott is a second order body of water. The Upper Bavaria district is therefore responsible for maintaining and expanding the river for this stretch .
Flood protection
After the damage from the flood in 2002, the Raisting community applied to the Weilheim water management office for a feasibility study for flood protection measures. The bottleneck at high water is the Rottbrücke in Raisting. Due to the high costs of an estimated 6 million euros, the municipality decided against the initially desired three flood retention basins upstream of Raisting and thus for the inner-city expansion of protective measures by increasing existing dams and building new ones to around 200,000 €. These measures were implemented in three construction phases by 2009.
Renaturation
The lower reaches of the Rott were straightened and diked in the 1920s. This enabled the meadows around the Rott to be used as fodder meadows . Previously, due to the frequent floods during harvest, it could only be used as litter meadows . In the meantime, the Rott has been dismantled to a natural body of water. In 2004 the lower reaches of the Rott were renatured downstream behind Raisting until they met the Alte Ammer. Then weirs and falls began to be converted into base ramps to restore an ecologically balanced brook system in the entire course to enable aquatic life to migrate in the river again.
Origin of name
The Rott is attested as Rota around 1065 in the Wessobrunn founding legend . Rota could go back to Indo-European * rota "wheel" and mean something like "the hurrying water". More probable, however, is a name formation as a result of the Bavarian land acquisition from the Old High German substantiated adjective rot "rot", which would result in the meaning "the red". The naming could be due to the red color of the stream bed or due to boggy water.
Accumulation of Rott names in the area
In the immediate vicinity of the Rott, about two kilometers west of the Zellsee, another Rott rises in Forst , which is usually called the Rottbach , and which flows through the municipality of Rott , which is named after it , and then flows a little further west into the Lech . In the Wessobrunn founding legend, the large forest that extended over the area of today's municipality of Wessobrunn (including the forest) is called "Rotwald" without it being clear what the term refers to.
Individual evidence
- ^ Contour lines at the origin according to the Bavarian Atlas of the Bavarian State Government ( references ).
- ↑ Mean water level of the Ammersee according to the Bavarian State Government's Bavaria Atlas ( information ).
- ↑ a b List of brook and river areas in Bavaria - Isar river area, page 51 of the Bavarian State Office for the Environment, as of 2016 (PDF; 2.5 MB)
- ^ Deutsches Gewässerkundliches Jahrbuch Danube region 2006 Bavarian State Office for the Environment, p. 207, accessed on October 4, 2017, at: bestellen.bayern.de (PDF, German, 24.2 MB).
- ↑ For the Alten Ammerlauf before the correction, see the Bayernviewer under the web links. The fact that the lower reaches of the Altammer before the mouth of the lake belongs to the Rott can be seen from the map of the Raistinger level on the website of the Bavarian Flood Intelligence Service (HND) together with the stationing of the level (4.00 km before the mouth) based on the master data there and on the Bayernviewer measurable underflow lengths. For the water supply of Rott, see the discharge data at HND, for the usually higher of the Alte Ammer see a leaflet from the water management office in Weilheim ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. (PDF) and another document from the authority ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. .
- ↑ a b c Upper Bavaria district: September 29, 2004 - Inauguration of the redesign of the Rott in the lower reaches. Announcement September 22, 2004. Online.
- ↑ Amperkurier: Protecting Raisting from Floods - Presentation of the feasibility study for flood retention . November 17, 2006, URL: www.ammerseekurier.de/23.html?&tx_ttnews%5BpS%5D=1162335600&tx_ttnews%5BpL%5D=2591999&tx_ttnews%5Barc%5D=1&tx_ttnews%5D=1&tx_ttnews%5Bewstnewsinter%5D_ttnews%5Bttback=5Dtt_837 % 5D = 11 & cHash = bf32cfbbab; Amperkurier: Flood protection for the municipality of Raisting: Raising the dam for protection - Local measures are the most effective and cost-effective solutions. News from March 2nd, 2007, URL: www.ammerseekurier.de/23.html?&tx_ttnews%5BpS%5D=1172703600&tx_ttnews%5BpL % 5D = 2674799 & tx_ttnews% 5Barc% 5D = 1 & tx_ttnews% 5Bpointer% 5D = 4 & tx_ttnews% 5Btt_news% 5D = 953 & tx_ttnews% 5BbackPid% 5D = 11 & cHash = aee8376450
- ↑ Amperkurier: Flood protection measures at the Rott - Water Management Office wants to start the third construction phase this year. News from October 10th 2008, URL: www.ammerseekurier.de/23.html?&tx_ttnews%5BpS%5D=1222812000&tx_ttnews%5BpL%5D=2681999&tx_ttnews%5Barc%5D=1&tx_ttnews%5Bpointer5x5D=20% .ttews=5Bpointer5x5D=20&t % 5BbackPid% 5D = 11 & cHash = 5177af1fa1
- ^ Water management office Weilheim: The Rott - redesign of the stream course. No year, published between 2004 and 2012 online. ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ^ Bavarian State Library , Clm. 14221 = MGH.SS 15/2, p. 1024 (Oswald Holder-Egger: Notae Wessofontanae. 1888): "[...] iuxta fluvium, qui Rotam influens [...]".
- ^ Gerhard Köbler: Old High German Dictionary. 4th edition. 1993, p. 90 f.
- ↑ a b Compare Dieter Berger: Duden. Geographical names in Germany. 2nd Edition. Dudenverlag, p. 243 f., Keywords Roth (in Middle Franconia) and Rott (in Lower Bavaria)
