Ahr

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Ahr
Course of the year

Course of the year

Data
Water code EN : 2718
location Germany
River system Rhine
Drain over Rhine  → North Sea
source in the Ahr Mountains near Blankenheim
50 ° 26 '17 "  N , 6 ° 38' 58"  E
Source height 474  m above sea level NHN
muzzle near Remagen - Kripp in the Rhine Coordinates: 50 ° 33 ′ 33 ″  N , 7 ° 16 ′ 36 ″  E 50 ° 33 ′ 33 ″  N , 7 ° 16 ′ 36 ″  E
Mouth height 53  m above sea level NHN
Height difference 421 m
Bottom slope 4.9 ‰
length 85.1 km
Catchment area 897.468 km²
Discharge at the Altenahr
A Eo gauge : 746 km²
Location: 31.7 km above the mouth 		NNQ (1976)
MNQ 1946-2007
MQ 1946-2007
Mq 1946-2007
 MHQ 1946-2007
HHQ (1993) 		292 l / s
973 l / s
7.15 m³ / s
9.6 l / (s km²)
 91.7 m³ / s
214 m³ / s

A Eo discharge : 897 km²
at the mouth 		MQ
Mq
 		8 m³ / s
8.9 l / (s km²)
Medium-sized cities Bad Neuenahr-Ahrweiler , Sinzig
Communities Blankenheim
Navigable Accessible by kayak and canoe

The Ahr (from Celtic aha for "water") is an 85.1 km long, western or left tributary of the Rhine in North Rhine-Westphalia and Rhineland-Palatinate ( Germany ).

geography

course

The Ahr has its source in the center of the Eifel located Blankenheim (Nordrhein-Westfalen) in the cellar of a half-timbered house in aggregated source at 474  m above sea level. NHN and then flows through the Schwanenweiher below Blankenheim Castle .

The south-east facing stream through the valley meadows of the upper Ahr valley, which is only moderately deepened into the Eifel heights and is largely under nature protection , is followed by federal road 258 . Below the district of Ahrdorf in the municipality of Blankenheim, the Ahr reaches its southernmost point and is in the Rhineland-Palatinate area. From Müsch via Antweiler to Fuchshofen , the river runs northwards and turns from Schuld via Insul to the east to Dümpelfeld . There the Ahr takes on the northeastern direction of flow of the Adenauer Bach, which joins from the right. At Altenahr, the valley bends to the east and initially has an unusually winding course. Here the river is accompanied by the B 267 , which does not follow every loop .

The largest loop in the Ahr begins in Altenahr ; it is under nature protection due to its flora and fauna. From here the valley is cut like a gorge with rugged rock slopes into the Ahr Mountains . From Reimerzhoven , viticulture is mainly carried out on the southern slopes north of the river, especially in the towns of Mayschoss , Rech , Dernau and Marienthal . The last bottleneck in the Ahr Valley lies below the Bunter Kuh , a rock formation that almost reaches the river and leaves little space for road and rail. In Walporzheim the valley widens suddenly and the Ahr crosses the district town of Bad Neuenahr-Ahrweiler . In Heimersheim the wine ends. The valley floor between Bad Bodendorf on the northern edge and Sinzig on a valley terrace in the south is characterized by arable farming and fruit and vegetable cultivation.

The mouth of the Ahr is located on the Golden Mile plain in the area of ​​the city of Sinzig, near the adjacent Remagen district of Kripp , at around 53  m above sea level. NHN . Since the renaturation (from 1979, see aerial photos) it has been one of the few natural estuaries into the Rhine and has been designated as a nature reserve where the Ahr estuary .

  • Pictures along the river

  • Ahrquelle (collected) in Blankenheim

  • Inscription at the source of the Ahr

  • The Mittelahr below Altenahr with the rocks of the Langfig

  • The Ahr at the Bunte Kuh rock formation near Walporzheim

  • The confluence of the Ahr and the Rhine before renaturation (around 1930)

  • The mouth of the Ahr after renaturation. On the right the village of Kripp

Tributaries

The tributaries on the left, over ten kilometers in length, are shown in dark blue, the ones on the right in light blue.

Tributaries of the Ahr  map with all coordinates of the tributaries: OSM | WikiMap
f1Georeferencing
Stat. in km
Surname GKZ location Length
in km 		EZG
in km² 		Mouth
Coordinates 		Mouth height
in m above sea level NHN 		Source location
Coordinates 		Source height
in m above sea level NHN 		Remarks
084.90 Stegbach 2718-1112 right 002.1940 Location ( Blankenheim ) 47300000 location 54200000
084.20 Ahr floodwater 2718-1114 right 000.1500 Location (Blankenheim) 44200000 location 44500000
083.10 Mülheim Bach 2718-112 Left0 004,5410 0005,9010 location 42000000 location 52600000
082.50 Nonnenbach 2718-12 right 006,9920 0010,8850 location 40700000 location 53900000
081.90 NN 2718-1312 right 001.0010 location 40200000 location 48300000
080.50 Reetzer Bach 2718-132 Left0 003,5850 0003.5580 Location ( Reetz ) 39200000 location 50900000
079.20 Schaafbach 2718-14 right 011,4220 0028,0310 location 37800000 location 58100000 Source river: Eichholzbach
078.20 NN 2718-152 Left0 001,8260 location 37300000 location 48300000
075.70 Lampertsbach 2718-16 right 009.4800 0028,0710 Location ( Dollendorf ) 35800000 Location ( Esch ) 53900000 Source river: Frömmelsbach
074.60 Fuhrbach 2718-172 right 005.3440 0005.1640 Location ( Ahrhütte ) 35100000 Location ( Mirbach ) 50100000 also: Bechertstal
074.00 Mühlenbach 2718-18 Left0 007.1060 0016,1720 Location (Ahrhütte) 34800000 location 49000000 Source river: Weilerbach
073.20 Michelsbach 2718-192 right 008.3030 0010.6520 Location ( Uedelhoven ) 34200000 location 51900000
072.90 Aulbach 2718-194 Left0 005.0800 0005.0550 Location (Uedelhoven) 34100000 location 52400000
071.10 Willemsbach 2718-1992 right 001.3560 Location (Uedelhoven) 34100000 Location (Uedelhoven) 45000000
070.70 Göttersbach 2718-1994 right 001.0120 Location (Uedelhoven) 34000000 Location (Uedelhoven) 39500000
068.80 Ahbach 2718-2 right 014,8660 0090,9580 Location ( Ahrdorf ) 33100000 Location ( Betteldorf ) 55900000
066.00 Herresbach 2718-36 Left0 003.29560 0003,7760 Location ( Dorsel ) 30400000 location 43200000
064.20 Trierbach 2718-4 right 025.2740 0116.1940 Location ( Müsch ) 29400000 location 61400000
061.10 Huhnenbach 2718-52 Left0 004,3490 0005.1540 Location ( Antweiler ) 28100000 location 48600000
060.30 Limbach 2718-532 right 003,9280 0003.6800 Location (Antweiler) 27700000 Location ( Reifferscheid ) 46000000
058.70 Eichenbach 2718-534 Left0 006,9340 0007.1730 location 27300000 Location ( Lommersdorf ) 52800000 Source river: Hirzenfin soaps
055.50 Laufenbach 2718-536 right 002.7580 0004.0700 Location ( Fuchshofen ) 25800000 Location (Reifferscheid) 43200000
055.40 Dreisbach 2718-54 Left0 010.0300 0016,3920 Location (Fuchshofen) 25600000 location 50700000
052.00 Armuthsbach 2718-56 Left0 018,3530 0060.5260 Location ( fault ) 24500000 location 53100000
049.80 NN 2718-5712 Left0 000.8960 Location (fault) 23200000 Location ( Harscheid ) 41700000
047.90 Wood soaps 2718-574 Left0 000.9960 0000.5490 location 22300000 location 34800000
047.50 Atzenbach 2718-576 right 002.5220 0002.3600 location 22200000 Location ( Winnerath ) 43200000
046.60 Welsbach 2718-5792 right 001.2810 Location ( insul ) 21800000 location 39900000
045.30 Lückenbach 2718-58 right 005.6770 0006.6200 location 21200000 Location ( Lückenbach ) 29400000
044.70 Adenauerbach 2718-6 right 015.7190 0058.4730 Location ( Dümpelfeld ) 20900000 location 53300000 Source river: Breitscheider Bach
044.60 Burgheckbach 2718-712 right 000.5660 0000.7590 Location (Dümpelfeld) 20900000 location 20700000 also: Wingertsbach
043.60 Ommelbach 2718-714 right 001.9280 0001.9340 Location ( Liers ) 20500000 location 31900000
042.80 Liersbach 2718-72 Left0 014,4630 0028,9360 Location (Liers) 20100000 location 52900000
040.50 Digging in the wide field 2718-732 right 000.6300 0000.4960 location 19800000 location 28900000
038.40 Kesselinger Bach 2718-74 right 014,1420 0095.0130 Location ( Ahrbrück ) 18400000 Location ( Schelborn ) 50900000 also: Staffeler Bach
038.30 Steinbach 2718-76 Left0 002.4690 0001.4010 Location ( Brück ) 18400000 location 36300000
038.20 Bach vom Schorling 2718-78 Left0 002,4560 0003.1740 Location (Brück) 18400000 location 33200000 also: Mirbach
035.20 Breidertbach 2718-794 Left0 001.0440 0000.7130 location 17400000 location 33200000
035.30 Kreuzberger Graben 2718-798 Left0 000.8140 0000.7260 Location ( Kreuzberg ) 16900000 location 17200000
034.00 Sahrbach 2718-8 Left0 015.3080 0046.0720 Location (Kreuzberg) 17100000 location 38400000
033.90 Vischelbach 2718-92 Left0 010,5390 0018.6710 Location (Kreuzberg) 17100000 location 37400000
031.50 Bach from the Burtscheiderberg 2718-932 Left0 002.2190 0005.2160 Location ( Altenahr ) 15700000 location 30300000 also: Rossbach
022.00 Brook at the Sonnenheck 2718-934 right 001.5680 0001,7770 Position ( computing ) 12700000 location 35200000 also: Young Berren or Bärenbach
021.90 Nollbach 2718-94 right 001,7680 0002,3940 Location (right) 12700000 location 30600000 also: Donnenbach
020.20 Steinbergsbach 2718-95114 right 001.0460 0001,4800 Location (right) 12200000 location 25200000 Estuary over Mühlgraben?
018.30 Kratzenbach 2718-9512 Left0 001,9210 0003.2380 Location ( Marienthal ) 11600000 location 22900000 also: climate protection pond
016.80 Heckenbach 2718-952 right 002,4250 0003.3910 Location ( Walporzheim ) 11600000 location 35600000 also: Geusbach (upper course)
015.10 Wingsbach 2718-96 right 004,5090 0005.3780 Location ( Ahrweiler ) 10500000 location 37200000
014.50 Mill pond ditch 2718-9712 Left0 000.1740 0000.0120 Location ( Bad Neuenahr ) 10200000 location 10600000 Outflow of the Giesemer Bach
012.90 Bachemer Bach 2718-972 right 006,9610 0008,3940 Location (Bad Neuenahr) 9600000 location 39700000
011.40 Fuchsbach 2718-974 Left0 004,4370 0009,0720 Location (Bad Neuenahr) 9200000 location 25500000 Upper course according to DGK: Lantershofener Bach or Töschenbach
009.60 Mill pond 2718-9752 right 002.0290 0002.1230 Location (Bad Neuenahr) 8500000 location 8400000
009.20 Idienbach 2718-976 right 005.3050 0005.0730 Location ( Heimersheim ) 8400000 location 34200000
008.70 Leimersdorfer Bach 2718-98 Left0 008.5200 0027.9840 Location ( Heppingen ) 8100000 location 21500000
007.00 Mühlenbach 2718-9912 right 002,3830 0005,7990 Location ( Lohrsdorf ) 7400000 location 8400000 also: mill pond
006.90 Lohrsdorfer Bach 2718-992 Left0 002.5020 0002.9350 Location (Lohrsdorf) 7400000 location 13500000
003.80 Mühlenbach 2718-9954 Left0 003.8520 0004,4840 Location ( Sinzig ) 6200000 location 6500000
003.10 Hellenbach 2718-996 right 007.6720 0011,7070 Location (Sinzig) 6000000 location 29100000
002.50 Harbach 2718-998 right 009,9210 0014.2400 Location (Sinzig) 5800000 location 25800000

Notes on the table

  1. ↑ Water code number , in Germany the official river code number with a separator inserted after the prefix for better readability, which stands for the common receiving water Ahr .
  2. ↑ a b c d e estuary data from GeoExplorer of the Rhineland-Palatinate water management authority ( notes ) (the estuary is not recognizable on the German base map 1: 5000)

Data

The Ahrquelle has an average bulk of 12 liters of water per second. The spring water contains many nitrogenous ions such as ammonium and nitrate .

The Ahr and its tributaries are the central water system , belonging to the East Eifel Ahr Hills . It drains a catchment area of 897.468 km². At the estuary, the Ahr reaches an average water flow of 8 m³ / s.

Of the 85.1 km total length of the Ahr, around 17 km flow into North Rhine-Westphalia and around 68 km into Rhineland-Palatinate. The river has a bed gradient of 0.4 percent in the lower course and 0.4 to 0.8% in the upper course .

Flood

The Ahr reached deadly high water levels with destructive effects in 1804 (64 dead) and 1910 (57 dead). As a result, all Ahr bridges - with the exception of the one at Rech - had to be rebuilt in the 20th century. In the Ahrstrasse tunnel in Altenahr there are marks of the highest levels.

On June 2, 2016, the Ahr level in Kreuzberg and Altenahr reached its highest level since measurements began. At the Altenahr gauge, the Ahr rose to 369 centimeters, 20 cm more than the highest flood to date in 1993.

history

There were isolated settlements in the Ahr Valley as early as Roman times , as evidenced by the Roman villa in Bad Neuenahr-Ahrweiler as Villa Rustica on the Silberberg. Due to its originally unfavorable traffic situation, the Ahr valley was , however, only densely populated relatively late - at least as far as the middle and upper reaches were concerned. That changed around the middle of the 19th century. The expansion of the settlements, the traffic routes (three different railway lines, such as the Ahr Valley Railway , were gradually built into the valley) and the agricultural areas in the Ahr Valley resulted in the river bed becoming more and more narrow. The course of the river has been straightened and its banks paved. Weirs were built in the river in order to be able to supply mills and irrigation systems evenly with water . Artificial bed sills should reduce the flow velocity and thereby prevent erosion .

However, weirs and bed sills have been dismantled for a number of years with the aim of improving water ecology. As part of the “ Salmon 2000 ” funding program , attempts have been made for several years to reintroduce salmon and sea ​​trout to the Ahr.

Wine-growing area

The Ahr is known for the vineyards in the Ahr Valley from the local community of Altenahr downstream. The Ahr wine-growing region is the largest closed red wine-growing region in Germany. The red wine hiking trail leads through the southern slopes of the lower Ahr valley and passes the government bunker documentation site above the river valley near Ahrweiler .

Ahr cycle path

In 2007 the Ahr cycle path between Remagen-Kripp and Blankenheim was completed. It has a length of 85 kilometers and above Dümpelfeld mainly follows the route of the Middle and Upper Ahr Valley Railway, which has been disused in this section . The bike path is well developed and signposted.

literature

  • Gottfried Kinkel: The guide through the Ahrthal together with a description of the cities of Linz, Remagen and Sinzig. T. Habicht, Bonn 1849, (digitized version)
  • The Ahr valley (= Stollfuss hiking map. No. 9). Map 1: 50,000. Stollfuss, Bonn no year (around 1950).
  • Gottfried Kinkel : The Ahr (= Rheinisches Land. Small series ). With panels by Theo Felten. Georg Fischer, Wittlich 1953.
  • Matthias Röcke: Castles and palaces between Ahr and Brohlbach. Famous and unknown systems in the Ahrweiler district. Bachem, Cologne 1984, ISBN 3-7616-0751-2 .
  • Michael Losse: Theiss Castle Guide Hohe Eifel and Ahrtal. 57 castles and palaces. Theiss, Stuttgart 2003, ISBN 3-8062-1775-0 .
  • Vera Kettenbach: The Ahr Valley. From Bad Bodendorf to Altenahr. Gaasterland, Düsseldorf 2004, ISBN 3-935873-02-6 .
  • Achim Gaasterland (Ed.): AhrtalReise. A vacation magazine for the region. Wine & culinary arts, nature & landscape, culture & fitness. Gaasterland-Verlag, Düsseldorf 2007, ISBN 978-3-935873-18-5 .
  • Christoph Lüttgen: Red Wine Hiking Trail. Gaasterland-Verlag, Düsseldorf 2008, ISBN 978-3-935873-23-9 .
  • Literature about the Ahr in the catalog of the German National Library

References and comments

  1. ^ German basic map 1: 5000.
  2. ↑ a b Map service of the landscape information system of the Rhineland-Palatinate Nature Conservation Administration (LANIS map) ( notes )
  3. ↑ a b c Water directory of the State Office for Nature, Environment and Consumer Protection NRW 2010 (XLS; 4.67 MB) ( Notes )
  4. ↑ a b c d e f g h i j k l m n o p q r s t u v w x GeoExplorer of the Rhineland-Palatinate water management authority ( information )
  5. ↑ Altenahr Ahr gauge , level data from the Rhineland-Palatinate State Office for the Environment (LfU)
  6. ↑ a b Federal Agency for Nature Conservation: Ahr estuary. Restoration of a river delta. on bfn.de (PDF; 174.7 kB)
  7. ↑ Legal ordinance on the nature reserve "Muzzle of the Ahr". (PDF; 91.7 kB) Ahrweiler district, June 23, 1981, accessed on January 2, 2014 .
  8. ↑ Bottom slope: difference in height of a current or in the sewer system
  9. ↑ Petra Ochs: When the Ahr brought death and devastation. (PDF) June 18, 2014, accessed April 12, 2017 .
  10. ↑ Record flood on the Ahr , from June 2, 2016, on wetteronline.de

Web links

Commons : Ahr  - collection of images
Wiktionary: Ahr  - explanations of meanings, word origins, synonyms, translations