Ourthe

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Ourthe
Location of the Ourthe in Belgium

Location of the Ourthe in Belgium

Data
location Ardennes , Luxembourg Province , Province of Liège , Belgium
River system Rhine
Drain over Meuse  → Hollands Diep  → North Sea
River basin district Meuse
source Headwaters : Eastern Ardennes
Ourthe Occidentale:
49 ° 54 ′ 57 ″ N, 5 ° 25 ′ 42 ″ E
Ourthe Orientale:
50 ° 11 ′ 44 ″ N, 6 ° 0 ′ 41 ″ E
Source height 506  m  (O. Occ.), 512 m (O. Or.),
275 m (Union)
muzzle Meuse near Liège Coordinates: 50 ° 37 ′ 22 "  N , 5 ° 34 ′ 49"  E 50 ° 37 ′ 22 "  N , 5 ° 34 ′ 49"  E
Mouth height 60  m
Height difference 450 m or 215 m
Bottom slope 2.5 ‰
length 181.2 km = 130.47 (Ourthe) + 50.75 (Ourthe Occ.)
Catchment area 3624 km²
Outflow A Eo : 3624 km²
MQ
Mq
 		55.2 m³ / s
15.2 l / (s km²)
Right tributaries Aisne , Amblève , Weser
Communities La Roche-en-Ardenne , Durbuy , Esneux
Navigable in the lower reaches

The Ourthe (German also Urt ) is a river in the east of the Belgian Ardennes . It arises in the province of Luxembourg from two source rivers that join at the border of the municipalities of La Roche-en-Ardenne and Houffalize . The Ourthe is the most water-rich tributary of the Meuse .

The 49.5 km long Ourthe Occidentale (western Urt) rises well 506 m above sea level near the village of Ourt in the municipality of Libramont-Chevigny ( 49 ° 55 ′ 31 ″ N, 5 ° 26 ′ 23 ″ E ) and then flows through it the communes of Sainte-Ode and Tenneville . It is the source flow richer in water (MQ = 7.2 m³ / s). The 38.7 km long Ourthe Orientale (eastern Urt) rises 510 m above sea level between Ourthe, Deiffelt and Beho ( 50 ° 12 ′ 09 ″ N, 5 ° 59 ′ 43 ″ E ), the three traditionally German-speaking villages in the municipality Gouvy . Besides Gouvy it flows through the municipality of Houffalize and its core town.

The association has been located in the Barrage de Nisramont reservoir since 1958 , water level about 275 m above sea level. The Ourthe then flows north-west and then north-east to the confluence of the Amel (Amblève in French), from there northwards and after 165 km joins the Meuse on the right at Liège .

The cities of La Roche-en-Ardenne , Hotton (with the Hotton Caves - famous karst cave), Durbuy (center of one of the smallest cities in the world), Comblain-au-Pont (also with cave) and Esneux . The lower reaches of the Ourthe is navigable, but since the 1920s it has only been used sporadically by ships.

The Ourthe department , which existed from 1795 to 1815, was named after the river .

The three main tributaries of the Ourthe come from the right: the Aisne (not to be confused with the much larger French Aisne ), the Amel (French: Amblève) and the Weser (French: Vesdre).

photos

  • The Ourthe at La Roche

  • The Ourthe near the town of Hotton

Web links

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

Individual evidence

  1. ↑ Determination of length using drawn GPS tracks: