Devoll (river)

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Devoll
Devolli (Eordaïcus)
On the middle reaches above Gramsh

On the middle reaches above Gramsh

Data
location Qark Korça , Qark Elbasan and Qark Berat , Albania
River system Seman
Drain over Seman  → Adriatic Sea
source east of the village Nikolicë in the Grammos Mountains ( municipality of Devoll )
40 ° 28 ′ 37 ″  N , 20 ° 49 ′ 7 ″  E
Source height 1180  m
confluence west of Kuçova with the Osum in the Seman coordinates: 40 ° 48 ′ 47 "  N , 19 ° 51 ′ 32"  E 40 ° 48 ′ 47 "  N , 19 ° 51 ′ 32"  E
Mouth height 25  m
Height difference 1155 m
Bottom slope 5.9 ‰
length 196 km
Catchment area 3130 km²
Discharge at the level at the confluence with the Seman MQ
 49.5 m³ / s
Reservoirs flowed through Moglica Reservoir , Banja Reservoir
Medium-sized cities Kuçova
Small towns Bilisht , Maliq , Gramsh

The Devoll ( Greek  Eordaikos ; Latin Eordaïcus ) is a river on the Balkan Peninsula and flows through Albania .

The Devoll rises in the southeast of the country in the municipality of the same name on the eastern slope of the Grammos Mountains . Then it crosses the plain of Korça north of Korça, which was swampy until after the Second World War and in which the Maliksee was located. Through an outflow from the Kleiner Prespa Lake , water flowed from the lake into the Devoll and so into the Adriatic Sea during floods after heavy rainfall and in spring when the snow melted. From the 1950s until around the year 2000, the Devoll was channeled into the Kleiner Prespa Lake during floods in order to temporarily store this water and use it for irrigation in the dry seasons. The drainage from the Kleiner Prespasse was canalized and branched off to irrigate the now fertile plain of Korça. The introduction of Devoll water into the Prespa lake led to the silting up of the Albanian part.

As it continues to the north-west of the Malik Plain, it breaks through several mountain ranges in a winding valley. In a cave near Moglica it is dammed into a lake about six kilometers long. After Gramsh, when it emerges from the mountains, the river is dammed again, to the twelve-kilometer-long Banja Lake. Shortly before the end of the river, water is drained north of Kuçova into the Thana reservoir , the largest reservoir for irrigation in Albania.

Further west, the Devoll joins the Osum, which also comes from the Grammos Mountains, to form the Seman River . Up to this point the river has reached a length of 196 km - whereby it drains an area of ​​3130 km² - and carries an average of 49.5 m³ / s. The Seman opens into a small delta south of the lagoon of Karavasta in the Adriatic .

At a location in the Devoll Valley, which cannot be precisely located, Bohemond of Taranto and the Byzantine Emperor Alexios I concluded a treaty in 1108 . Previously, the Greeks had defeated the Norman crusaders in battle.

The company Devoll Hydropower , which belongs to the Norwegian energy group Statkraft and in which the Austrian EVN AG was previously involved, is building the two storage power plants Banja and Moglica in the Gramsh am Devoll region , which went into operation in 2016 and January 2020, respectively. Together, the power plants have a capacity of 256  MW and are expected to generate 729 GWh of electricity per year. Devoll Hydropower has a concession for a third power plant in this area.

Web links

Commons : Devoll River  - collection of images, videos and audio files

Individual evidence

  1. ^ William Smith: Dictionary of Greek and Roman Geography (1854). Retrieved October 7, 2011 .
  2. ^ Gabriel Schwaderer, Annette Spangenberg: Prespa-Ohrid region . Radolfzell 2009, ISBN 978-3-00-027579-1 .
  3. ↑ Përfundon ndërtimi i HEC-it të Moglicës, rritet prodhimi i energjisë me 17%. In: Shqiptarja.com. January 7, 2020, accessed January 7, 2020 (Albanian).
  4. ↑ Devoll Hydropower. In: Statkraft. Retrieved November 4, 2015 .