Välijoki

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Välijoki
Niska dam 20180831.jpg
Data
Water code FI : 47.022
location South Ostrobothnia ( Finland )
River system Ähtävänjoki
Drain over Ähtävänjoki  → Baltic Sea
origin Lappajärvi
63 ° 15 ′ 38 "  N , 23 ° 38 ′ 6"  E
Source height 69.5  m
muzzle Evijärvi coordinates: 63 ° 22 ′ 34 "  N , 23 ° 30 ′ 25"  E 63 ° 22 ′ 34 "  N , 23 ° 30 ′ 25"  E
Mouth height 61.7  m
Height difference 7.8 m
Bottom slope approx. 0.52 ‰
length approx. 15 km

The Välijoki ( Finnish for "intermediate river") is a river in the Finnish landscape of southern Ostrobothnia .

The Välijoki forms the middle section of the Ähtävänjoki river system. It forms the outflow from the Lappajärvi , flows over a distance of 15 km in a north-northwest direction and flows into Lake Evijärvi . The Hanhikoski hydropower plant, which was completed in 1969, is about halfway . It has an installed capacity of 1.4 MW and uses a gradient of 7.1 m with a flow rate of 2 × 12.5 m³ / s.

Individual evidence

  1. JÄRVIWIKI - Lappajärvi (47.031.1.001)
  2. JÄRVIWIKI - Evijärvi (47.021.1.001)
  3. a b Oy Vesirakentaja - Hanhikosken voimalaitos