Simoa

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title: "Simoa" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["rivers-of-buskerud", "modum", "sigdal", "rivers-of-norway"] topic_path: "geography/norway" source: "https://en.wikipedia.org/wiki/Simoa" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::data[format=table title="Infobox river"]

Field	Value
name	Simoa
image	Haugfossen.JPEG
image_caption	Haugfoss on the Simoa
source1_location	Solevatn (Capellen map) or Soneren lake (Store norske leksikon)
mouth_location	Drammenselva at Åmot, Buskerud
basin_size_km2	889
::

Location

The Simoa river runs from Lake Soneren through the municipality of Sigdal in a south-easterly course until it flows into Drammenselva at Åmot in Modum. The river begins a few miles north of Lake Haglebuvatna where it is initially known as the Haglebu, later becoming the Eggedøla as it flows through the valley of Eggedal. Lake Soneren lies at an elevation of 103 m. The drainage basin of the Simoa covers 889 km2.

Haugfoss waterfall at Blaafarveværket in Modum, has been used as a motif for many artists throughout history. Notable examples include Winter at Simoa River which was painted during 1883 by Norwegian artist Frits Thaulow.

It was developed for hydroelectric power by Midt Nett Buskerud AS, the utility company owned by Modum and Sigdal municipalities. Haugfoss kraftverk was constructed in 1937 and has a capacity of 3.6 MW. Horga, the tributary river which runs into Soneren has Horga kraftverk, a second power station which was built 1988–1990 and has a capacity of 7.2 MW.

Among the floods in the Simoa which have caused damage, are those in 1752, 1858, 1934, 1938, 1987, 1995, 2007, and 2008. Attempts are made to regulate the reservoirs to reduce the risk of flooding. Parts of Simoa was protected in the Conservation Plan for the river (1973). The river is protected upstream from Lake Soneren.

The former name for the river was Sigm(á), sigm meaning "glide" and å meaning "river". ::figure[src="https://upload.wikimedia.org/wikipedia/commons/c/c6/Frits_Thaulow_-Winter_at_the_River_Simoa-_Google_Art_Project.jpg" caption="''Winter at Simoa River''
[[Frits Thaulow]] (1886)
National Gallery, Oslo, Norway"] ::

References

Other sources

"Simoa", Store norske leksikon

References

[http://www.allartclassic.com/author_biography.php?p_number=243 ''Frits Thaulow, Biography and Paintings'' (WCGallery)]
[http://www.midtnett.no/DBFx/Dokumenter/12/%C5rsberetning_2006.pdf Midt-Nett annual report]{{dead link. (May 2018). no
link. (2007-04-21 NVE entry on Simoa {{in lang). no
[http://www.elvedelta.no/delta-224.htm Simoas utløp i Soneren] Entry for the Simoa's inflow to Soneren {{in lang. no
[http://www.fylkesmannen.no/NVE-Klimasituasjonen_Nye_utfordinger_til_beredskap_GSj9K.pdf.file Klimasituasjonen Historisk naturulykker i Buskerud] {{webarchive. link. (2012-02-10 Presentation (see slide 32) {{in lang). no
link. (2011-05-21 Chapter in report for the Norwegian Oil and Energy department (''Tiltak mot flom''), 1996 {{in lang). no
[http://www.bygdeposten.no/sigdal/article3481135.ece Kan bli 200-årsflom] Bygdeposten.no April 17, 2008 {{in lang. no
[http://www.nrk.no/nyheter/distrikt/ostafjells/1.5556034 Vannet stiger] NRK Østafjells, May 2, 2008 {{in lang. no
[http://www.bygdeposten.no/sigdal/article3484057.ece - Magasinene nesten tomme] ''[[Bygdeposten]]'' April 20, 2008 {{in lang. no
no

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