Case study:Ruppoldingen - Revision history

Alexrrc at 09:00, 2 June 2017

2017-06-02T09:00:44Z

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	{{Measures		{{Measures
	\|Bank and bed modifications measure=Building nature-like bypass channel, Creation of fish passes,		\|Bank and bed modifications measure=Building nature-like bypass channel, Creation of fish passes,
	\|Planform / Channel pattern=~~Establishment~~ of fish ~~passage~~,		\|Planform / Channel pattern=Creation of fish passes,
	}}		}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}

Alexrrc at 08:22, 2 June 2017

2017-06-02T08:22:52Z

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	{{Motivations}}		{{Motivations}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=~~Fish pass,~~ Building nature-like bypass channel,		\|Bank and bed modifications measure=Building nature-like bypass channel, Creation of fish passes,
	\|Planform / Channel pattern=Establishment of fish passage,		\|Planform / Channel pattern=Establishment of fish passage,
	}}		}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}

Kasvio at 11:28, 9 December 2013

2013-12-09T11:28:00Z

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 {{Case study image
 |File name=Ruppoldingen plan.JPG
 |Caption=The map and plan of Ruppoldingen fishpass.
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Kasvio at 11:25, 9 December 2013

2013-12-09T11:25:44Z

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			{{Case study image
			\|File name=Ruppoldingen plan.JPG
			\|Caption=The map and plan of Ruppoldingen fishpass.
			}}
	{{Image gallery end}}		{{Image gallery end}}
	{{Toggle button}}		{{Toggle button}}

Kasvio at 11:23, 9 December 2013

2013-12-09T11:23:11Z

← Older revision		Revision as of 11:23, 9 December 2013
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	\|Main contact surname=Gebler		\|Main contact surname=Gebler
	\|Main contact id=Kasvio		\|Main contact id=Kasvio
	\|Contact organisation=Alpiq		\|Contact organisation=Alpiq
	\|Contact organisation url=www.alpiq.com		\|Contact organisation url=www.alpiq.com
	\|Multi-site=No		\|Multi-site=No
			\|Project picture=Ruppoldingen fishpath4.JPG
			\|Picture description=The rock-cascade fishpass. (photo by Pinja Kasvio)
	\|Project summary=Ruppoldingen in the River Aare is a good example of a combination of a long bypass channel with reproduction habitats and a fish pass near to the power plant. The bypass was constructed in 2001 during the renewal of the power plant at the place of the old headrace channel. The planning and construction of the bypass at Ruppoldingen served as the first example to gain experience for similar constuctions in other power plants and especially for the large facilities in Rheinfelden.		\|Project summary=Ruppoldingen in the River Aare is a good example of a combination of a long bypass channel with reproduction habitats and a fish pass near to the power plant. The bypass was constructed in 2001 during the renewal of the power plant at the place of the old headrace channel. The planning and construction of the bypass at Ruppoldingen served as the first example to gain experience for similar constuctions in other power plants and especially for the large facilities in Rheinfelden.

Kasvio at 10:46, 9 December 2013

2013-12-09T10:46:43Z

← Older revision		Revision as of 10:46, 9 December 2013
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	\|Themes=Hydropower		\|Themes=Hydropower
	\|Country=Switzerland		\|Country=Switzerland
	\|Main contact forename=~~Jukka~~		\|Main contact forename=Rolf-Jürgen
	\|Main contact surname=~~Jormola~~		\|Main contact surname=Gebler
	\|Main contact id=Kasvio		\|Main contact id=Kasvio
			\|Contact organisation=Alpiq
			\|Contact organisation url=www.alpiq.com
	\|Multi-site=No		\|Multi-site=No
	\|Project summary=Ruppoldingen in the River Aare is a good example of a combination of a long bypass channel with reproduction habitats and a fish pass near to the power plant. The bypass was constructed in 2001 during the renewal of the power plant at the place of the old headrace channel. The planning and construction of the bypass at Ruppoldingen served as the first example to gain experience for similar constuctions in other power plants and especially for the large facilities in Rheinfelden.		\|Project summary=Ruppoldingen in the River Aare is a good example of a combination of a long bypass channel with reproduction habitats and a fish pass near to the power plant. The bypass was constructed in 2001 during the renewal of the power plant at the place of the old headrace channel. The planning and construction of the bypass at Ruppoldingen served as the first example to gain experience for similar constuctions in other power plants and especially for the large facilities in Rheinfelden.

Kasvio at 10:33, 9 December 2013

2013-12-09T10:33:46Z

← Older revision		Revision as of 10:33, 9 December 2013
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	\|Main contact forename=Jukka		\|Main contact forename=Jukka
	\|Main contact surname=Jormola		\|Main contact surname=Jormola
			\|Main contact id=Kasvio
	\|Multi-site=No		\|Multi-site=No
	\|Project summary=~~A natural~~ fish pass was constructed on the ~~river Aar~~ at the Ruppoldingen ~~hydropower plant~~. ~~The~~ aim was to mitigate the impacts of the hydropower plant, allowing free fish migration and compensate for loss of habitats.		\|Project summary=Ruppoldingen in the River Aare is a good example of a combination of a long bypass channel with reproduction habitats and a fish pass near to the power plant. The bypass was constructed in 2001 during the renewal of the power plant at the place of the old headrace channel. The planning and construction of the bypass at Ruppoldingen served as the first example to gain experience for similar constuctions in other power plants and especially for the large facilities in Rheinfelden.
	The scheme was two-fold. Firstly a 155 meter long natural fish pass close to the turbines. A second ~~1.2km long bypass channel~~ was also created further downstream of the plant. This channel comprised two arms, one which was shallower with gravel riffles installed and a deeper channel for migration. The aim was to re-create a natural alpine stream. ~~The mean gradient~~ of the fish ~~pass is 3.8%~~, and the bypass channel 0.4%.
	~~Pike~~, ~~Carp, Barbell and Catfish~~ have been ~~seen to use~~ the bypass channel. ~~Juvenile Grayling have also been found, suggesting~~ that the bypass channel is providing a new reproductive area.		In Ruppoldingen, the aim was to mitigate the impacts of the hydropower plant, allowing free fish migration and compensate for loss of habitats and also to design a small river that creates habitats for the fish that are typical for the area. The scheme was two-fold. Firstly a 155 meter long natural fish pass close to the turbines. The mean gradient of the fish pass is 3.8%. A second length was also created further downstream of the plant as the bypass that is 1,2 km and mean gradient 0,5%. 2-5 m3/s is lead to the bypass channel as environmental flow. A rock cascade fish pass connects the bypass to the power plant. This channel comprised two arms, one which was shallower with gravel riffles installed and a deeper channel for migration. The aim was to re-create a natural alpine stream.

			According to monitoring, juveniles of greyling have been found in the bypass channel and big fish species like pike, carp, barbell and wells catfish have used it. These suggests that the bypass channel is providing a new reproductive area.
			By the measures at Ruppoldingen the power company Alpiq has got the Naturemade Star -certification which is considered to be the most demanding Green Electricity Certification for hydropower.
			\|Monitoring surveys and results=According to monitoring, juveniles of greyling have been found in the bypass channel and big fish species like pike, carp, barbell and wells catfish have used it. These suggests that the bypass channel is providing a new reproductive area.
	}}		}}
	{{Image gallery}}		{{Image gallery}}

NickRRC at 10:27, 8 November 2013

2013-11-08T10:27:52Z

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	{{Case study status		{{Case study status
	\|Approval status=~~Draft~~		\|Approval status=Approved
	}}		}}
	{{Location		{{Location

NickRRC at 10:02, 8 November 2013

2013-11-08T10:02:12Z

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	}}		}}
	{{Location		{{Location
	\|Location=47.~~76291819999999~~, 12.~~645305399999983~~		\|Location=47.31130388063587, 7.883806228637695
	}}		}}
	{{Project overview		{{Project overview

NickRRC at 10:12, 4 November 2013

2013-11-04T10:12:26Z

← Older revision		Revision as of 10:12, 4 November 2013
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	\|Themes=Hydropower		\|Themes=Hydropower
	\|Country=Switzerland		\|Country=Switzerland
	\|Main contact forename=~~nick~~		\|Main contact forename=Jukka
	\|Main contact surname=~~elbourne~~		\|Main contact surname=Jormola
	\|Multi-site=No		\|Multi-site=No
	\|Project summary=A natural fish pass was constructed on the river Aar at the Ruppoldingen hydropower plant. The aim was to mitigate the impacts of the hydropower plant, allowing free fish migration and compensate for loss of habitats.		\|Project summary=A natural fish pass was constructed on the river Aar at the Ruppoldingen hydropower plant. The aim was to mitigate the impacts of the hydropower plant, allowing free fish migration and compensate for loss of habitats.
	The scheme was two-fold. Firstly a 155 meter long natural fish pass close to the turbines. A second 1.2km long bypass channel was also created further downstream of the plant. This channel comprised two arms, one which was shallower with gravel riffles installed and a deeper channel for migration. The aim was to re-create a natural alpine stream. The mean gradient of the fish pass is 3.8%, and the bypass channel 0.4%.		The scheme was two-fold. Firstly a 155 meter long natural fish pass close to the turbines. A second 1.2km long bypass channel was also created further downstream of the plant. This channel comprised two arms, one which was shallower with gravel riffles installed and a deeper channel for migration. The aim was to re-create a natural alpine stream. The mean gradient of the fish pass is 3.8%, and the bypass channel 0.4%.
	Pike, Carp, Barbell and Catfish have been seen to use the bypass channel. Juvenile Grayling have also been found, suggesting that the bypass channel is providing a new reproductive area.		Pike, Carp, Barbell and Catfish have been seen to use the bypass channel. Juvenile Grayling have also been found, suggesting that the bypass channel is providing a new reproductive area.

	}}		}}
	{{Image gallery}}		{{Image gallery}}