Alnaelva
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Alnaelva Alna, Loelva |
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| Data | ||
| location | Oslo ( Norway ) | |
| origin | Outlet of the lake Alnsjøen 59 ° 58 '0 " N , 10 ° 51' 32" O |
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| muzzle |
Oslofjord coordinates: 59 ° 53 ′ 46 " N , 10 ° 45 ′ 20" E 59 ° 53 ′ 46 " N , 10 ° 45 ′ 20" E
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| length | 15 km | |
| Big cities | Oslo | |
The Alnaelva (also Alna or Loelva for short ) is the longest river that flows through Oslo . It has its source in the Lillomarka forest by Lake Alnsjøen . Until 1922 the river flowed into the Oslofjord in the area between Grønlia and Sørenga , where the city of Oslo was founded around the year 1000 . In 1922, however, part of the river course was diverted with the help of a tunnel and the old estuary was used for a railway line.
The quality of the water in the lower part of the river is classified by the authorities as bad to very bad, for example the phosphorus and nitrate limits have been greatly exceeded. For this reason, too, consideration is being given to letting the river return to its old course. In the summer of 2018, around 50,000 liters of oil leaked into the river. In November of the same year, another leakage caused another 5000 liters of diesel to flow into the water of the Alnaelva.
Web links
- Alnaelva in the store norske leksikon (Norwegian)
Individual evidence
- ↑ Elver og Bekker. In: Oslo commune. Retrieved October 28, 2019 (Norwegian).
- ↑ Faktaark. In: kartverket.no. Retrieved October 28, 2019 (Norwegian).
- ↑ Faktaark 2018: Oslos byvassdrag. (PDF) Oslo Kommune, p. 15 , accessed on October 28, 2019 (Norwegian).
- ↑ Kjersti Flugstad Eriksen: Alnaelva shall be opp av rørene. May 21, 2013, accessed on October 28, 2019 (Norwegian Bokmål).
- ↑ TV 2 AS: Oljetank tommes etter lekkasje i Alnaelva. Retrieved October 28, 2019 (Bokmål in Norwegian).
- ↑ Olga Stokke, Stine Barstad, Per Annar Holm: Lekkasje i elv i Oslo: - Lukter powerful diesel reaches nedover elven. Retrieved October 28, 2019 (Bokmål in Norwegian).