Friedberger Oh
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Friedberger Oh, in short: Oh Section names: Verlorener Bach → Galgenbach → Hagenbach → (Friedberger) Ach |
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 The Friedberger Ach about 3.5 km before Thierhaupten |
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| Data | ||
| Water code | EN : 132 | |
| location | Bavaria | |
| River system | Danube | |
| Drain over | Danube → Black Sea | |
| source | at Penzing -Untermühlhausen 48 ° 5 '10 " N , 10 ° 54' 19" O |
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| Source height | approx. 597 m above sea level NHN | |
| muzzle | At the boundary of Stepperg , Markt Rennertshofen zu Unterhausen , municipality of Oberhausen , under its Römerberg from right into the Danube Coordinates: 48 ° 44 ′ 15 ″ N , 11 ° 3 ′ 42 ″ E 48 ° 44 ′ 15 ″ N , 11 ° 3 ′ 42 ″ O |
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| Mouth height | approx. 385 m above sea level NHN | |
| Height difference | approx. 212 m | |
| Bottom slope | approx. 2.1 ‰ | |
| length | 100.4 km | |
| Catchment area | 597.6 km² | |
| Right tributaries | Affinger Bach , little couple | |
The Friedberger Ach - also just called Ach for short and in the upper reaches of the Verlorener Bach , Galgenbach and Hagenbach - is an approximately 100 kilometer long right tributary of the Danube . It rises northeast of Landsberg am Lech and flows parallel to the Lech northwards to the Danube.
River course
The river rises as a Lost Brook in Untermühlhausen in Upper Bavaria (municipality of Penzing ) northeast of Landsberg at the Penzing military airfield and then flows through the municipalities of Weil and Prittriching . The stream changes name several times in the upper reaches: After Prittriching it is called Galgenbach and from Merching Hagenbach .
The Lech runs only a few hundred meters further west here. In the Kissing area , the Hagenbach even approaches the diked Lech up to about 100 m. Between Kissing and Augsburg-Hochzoll, the brook then bends to the northeast and moves away from the Lech. From Friedberg it is called "Friedberger Ach".
A few kilometers east of the Lech, the Friedberger Ach then flows towards the Danube. Other localities in its course are Mühlhausen , Rehling , Thierhaupten and Münster .
Below the town of Rain , in the municipality of Niederschönenfeld, after its main town , the river reaches the floodplain forests on the right-hand side of the Danube, where the course bends to the east parallel to the river. Almost ten kilometers further east as the crow flies, the Kleine Paar flows in from the southwest in front of the Steppberg ; a few hundred meters further on, the Friedberger Ach flows into the Danube from the right on the boundary of the parish village Stepperg of Markt Rennertshofen, which is itself north of the Danube .
Tributaries
From the origin to the mouth. Lengths and catchment areas preferably according to the official register of waters, otherwise measured if necessary. Selection.
Origin of the Friedberger Ach at the sewage treatment plant near the parish village of Ziegelstadel von Penzing in the Landsberg am Lech district.
- Röhrlgraben (right) - from the southwest, confluence between Weil and Geretshausen ; 6.4 km and 73.3 km²; has a lot more catchment area than the main line up to this point, at least on the surface
- Dorfgraben (right) - from the south, flows through Geretshausen, confluence northwest of Geretshausen; 2.6 km and 3.7 km²
- Alberwiesengraben (left) - from the south, confluence northwest of Petzenhausen ; approx. 1.2 km
- Missengraben (left) - from the southwest, confluence south of Adelshausen ; 1.3 km and 6.1 km²
- Loosbach (right) - from the southeast, confluence with the Mangmühle ; flows past Schwabhausen near Landsberg , Jedelstetten , Unfriedshausen and Pestenacker ; 8.1 km and 25.6 km²
- Beuerbach (left) - from the south, confluence northwest of Winkl ; flows through Beuerbach before ; 4.7 km and 16.2 km²
- Mühlbach (left) - from the southwest, confluence northwest of Winkl; flows through Scheuring ; 4.5 km and 5.0 km²
- Riedbachgraben (right) - from the south, confluence southeast of Sankt Afra ; about 1.6 km
- Achgraben (left) - confluence with Augsburger Straße in Friedberg ; 1.9 km and 1.4 km² on the part to the left of the Friedberger Ach; Probably the Achgraben as well as the Leitenbach flowing towards it each have a larger run and a larger catchment area to the right of the river, south of Friedberg, where watercourses of the same name extend to the river
- Katzentalgraben or Dohlenbach (right) - from the east, confluence between Stätzling and Derching; approx. 0.5 km
- Fuchsgraben (right) - from the southeast, confluence north of Derching; approx. 1.2 km
- Speckwiesengraben (left) - from the south-east, confluence in the south-east area of the Augsburg airfield ; short collector of some ditches, especially the trout stream, with this 4.4 km and 10.8 km²
- Leitengraben (left) - from the southeast, confluence in Mühlhausen; the greater part of the course and catchment area lies to the right of the Friedberger Ach, which the Leitenbach crosses in a culvert shortly before Mühlhausen; 3.4 km and 6.6 km²
- Schwarzgraben (left) - from the south, confluence on the northern outskirts of Mühlhausen; takes up the longer pipe trench, which also crosses under the river in a culvert before the Leitenbach; 2.0 km and 2.6 km²
- Affinger Bach (right) - from the east, confluence west of Anwalting; flows through Haunswies , Affing , Gibhofen and Anwalting ; 7.1 km and 26.2 km²
- Exit of a flood channel (left) - exit immediately after the lawyer; s. u.
- Gamlinggraben (left) - from the southeast, confluence across from Sand ; the largest part of the course and catchment area lies to the right of the Friedberger Ach, which it crosses shortly before the mouth; fed by the more important right upper reaches Rohrbachgraben, which soon runs to Gamling ; 3.9 km and 9.1 km²
- Flood canal (left) - from the southeast, re-confluence immediately after Sand, left side ditch, which goes off shortly after the mouth of the Affinger Bach at Anwalting; 6.8 km and 5.4 km²
- Exit of a flood canal (left) - to the northwest, exit west of Bach again westwards parallel to the Ach; drained over the Münsterer Alte to the Lech
- Edenhauser Bach (right) - from the southeast, confluence a little northwest of Bach; flows through Pichl , Edenhausen and Bach, fed by the Kabisbach to the west of Bach; 7.2 km and 15.4 km²
- Inconsistent finish of the Lüßgraben (left) - finish immediately after the first single courtyard of Thierhaupten
- Bitz (right) - from the southeast, confluence with Thierhaupten, arises inconsistently near willows ; 3.4 km and 10.2 km²
- Lüßgraben (left) - from the south, confluence at the end of Thierhaupten, fed by well water and the Wendelingraben; 2.7 km and 3.9 km²
- (Ditch past Winkelmoos) (left) - from the southeast, confluence shortly after Gut Hemerten ; crosses the Friedberger Ach at Hemerten via a culvert; 2.1 km and 2.6 km²
- (Lower reaches of the Angergraben) (left) - from the south, confluence opposite the Kittelmühle in front of the town of Rain am Lech ; the upper course of the Angergraben changes the river side at Unterpeiching ; 2.5 km and 4.3 km²
- Ziegelmoosgraben (right) - from the south, confluence with Rain after a winding course, on the southern edge of the settlement area it begins as a castle moat; 1.8 km and 1.0 km²
- (Graben from the Bachfeld) (left) - from the south, confluence at the end of the village of Niederschönenfeld ; 2.4 km and 2.2 km²
From here the Friedberger Ach flows eastwards in the Donauaue - (Backwater inflow from the Schönenfelder Au) (left) - from the north-west, confluence east of Niederschönenfeld on the edge of the alluvial forest to the Feldgewann cattle pasture; 1.5 km and 0.6 km²
- (Auengraben tributary from the Schönenfelder Au) (left) - from the west, confluence northwest of the Hunzenhof in the Waldgewann garbage rubble; 1.5 km and 0.4 km²
- (Altschlinge in der Gänsau) (right) - exit and confluence northeast of the Hunzenhof; 1.5 km and 0.8 km²
- (Lower course of the Lauxengraben) (right) - from the southwest, confluence next to the ND 11 district road between Markt Burgheim and the Bertoldsheim barrage ; the Lauxengraben, which flows under a different name, is fed by countless small ditches; 8.6 km with the Rinnegraben on the outskirts of Rain and 24.6 km²
- Schüttrinnengraben (right) - from the southwest, confluence northeast of Moos in Mooser Schütt; 9.3 km and 13.6 km²
- Small couple (right) - from the southwest, confluence at the foot of the Römerberg von Unterhausen ; 3.8 km and 175.4 km²
Mouth of the Friedberger Ach on the part rechtsdonauischen local district of Stepperg close to the municipal boundary of market Rennertshofen to Oberhausen .
history
Up until about 10,000 years ago, the Friedberger Ach was the lower reaches of the couple , until it was tapped at Friedberg-Ottmaring via the couple breakthrough .
The Friedberger Ach in its current overall course is an artificial structure, which is also the reason for the different names in the upper reaches. Originally the river originated south of Friedberg - where the original Ach springs are still located not far from the Paardbruch - and flowed between Sand (municipality of Todtenweis ) and Thierhaupten into the then still widely branched Lech. From 1555, most of the water was diverted to the Edenhauser Bach, which flowed through Thierhaupten to Rain, in order to have more water available for the mills and the defenses in Rain, which was then a Bavarian border town. The upper course of the Edenhauser Bach, which rises near Willprechtszell ( Petersdorf municipality ), thus became a right tributary of the Ach.
Around 1860, the Hagenbach , which had previously flowed from Kissing through Hochzoll , was diverted to supply the Ach vor Friedberg with more water. After the regulation of the Lech in the 1920s, the water table sank and the sources of the Hagenbach dried up. For this reason the Galgenbach or the Lost Bach was diverted and fed to the Hagenbach. The lost brook - formerly known as Rohrach - flowed into the Lech west of Mering until then.
The Lost Brook itself was regulated in the area of Prittriching in 1965 for flood protection reasons and relocated a little to the west.
The mouth of the Ach was also changed in the course of the Danube regulation and the construction of the barrage at Bertoldsheim . In order to avoid a backwater in the river, the Ach was led past the reservoir and only flows below the barrage.
Individual evidence
BayernAtlas ("BA")
Official online waterway map with the appropriate section and the layers used here: Headwaters of the upper course Verlorener Bach
(For other sections of the course, please change the scale of the map or move the section.)
General introduction without presettings and layers: BayernAtlas of the Bavarian State Government ( notes )
- ↑ a b Height queried on the background layer Official map (right click).
- ↑ Length measured on the official map background layer .
- ↑ Catchment area measured on the official map background layer .
Water directory Bavaria ("GV")
- ↑ a b Length according to: List of brook and river areas in Bavaria - Lech to Naab river area, page 1 of the Bavarian State Office for the Environment, as of 2016 (PDF; 2.9 MB) (continue to page 25.)
- ↑ a b Catchment area according to: List of brook and river areas in Bavaria - Lech to Naab river area, page 1 of the Bavarian State Office for the Environment, as of 2016 (PDF; 2.9 MB) (continue to page 25.)