Case study:Restoration of the River Impiönjoki - Revision history

Kasvio at 10:35, 19 December 2013

2013-12-19T10:35:40Z

← Older revision		Revision as of 10:35, 19 December 2013
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	{{Case study status		{{Case study status
	\|Approval status=~~Draft~~		\|Approval status=Approved
	}}		}}
	{{Location		{{Location

Kasvio at 10:35, 19 December 2013

2013-12-19T10:35:23Z

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	Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards.		Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards.

	The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.		The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2. The elevation variation between the areas is 1,43 meters.
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	{{Image gallery}}		{{Image gallery}}

Kasvio at 10:33, 19 December 2013

2013-12-19T10:33:11Z

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	}}		}}
	{{Project background		{{Project background
			\|Reach length directly affected=710
	\|Project started=2011/04/03		\|Project started=2011/04/03
	\|Works started=2013/06/02		\|Works started=2013/06/02

Kasvio at 10:32, 19 December 2013

2013-12-19T10:32:18Z

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	\|Works completed=2013/10/31		\|Works completed=2013/10/31
	}}		}}
	{{Motivations}}		{{Motivations
			\|Hydromorphological quality elements=Channel pattern/planform, Width & depth variation, Flow velocities,
			\|Biological quality elements=Fish, Invertebrates,
			}}
	{{Measures}}		{{Measures}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}

Kasvio at 10:31, 19 December 2013

2013-12-19T10:31:20Z

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	\|Average bankfull channel width category=5 - 10 m		\|Average bankfull channel width category=5 - 10 m
	}}		}}
	{{Project background}}		{{Project background
			\|Project started=2011/04/03
			\|Works started=2013/06/02
			\|Works completed=2013/10/31
			}}
	{{Motivations}}		{{Motivations}}
	{{Measures}}		{{Measures}}

Kasvio at 10:30, 19 December 2013

2013-12-19T10:30:22Z

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	{{Toggle content start}}		{{Toggle content start}}
	{{Case study subcatchment}}		{{Case study subcatchment}}
	{{Site}}		{{Site
			\|Heavily modified water body=No
			\|Protected species present=Yes
			\|Invasive species present=Yes
			\|Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus),
			\|Dominant substrate=Sand, Gravel,
			\|Average bankfull channel width category=5 - 10 m
			}}
	{{Project background}}		{{Project background}}
	{{Motivations}}		{{Motivations}}

Kasvio at 10:29, 19 December 2013

2013-12-19T10:29:09Z

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	\|Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland		\|Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland
	\|Multi-site=No		\|Multi-site=No
	\|Project picture=Impionjoki ~~before~~ 2013.JPG		\|Project picture=Impionjoki after 2013.JPG
			\|Picture description=River Impiönjoki after the restoration (photo J.Huhtala)
	\|Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.		\|Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.

Kasvio at 10:27, 19 December 2013

2013-12-19T10:27:39Z

← Older revision		Revision as of 10:27, 19 December 2013
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	\|Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland		\|Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland
	\|Multi-site=No		\|Multi-site=No
			\|Project picture=Impionjoki before 2013.JPG
	\|Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.		\|Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.

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	Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards.		Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards.

	The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.		The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.
	}}		}}
	{{Image gallery}}		{{Image gallery}}

Kasvio at 10:25, 19 December 2013

2013-12-19T10:25:21Z

← Older revision		Revision as of 10:25, 19 December 2013
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	}}		}}
	{{Project overview		{{Project overview
	~~\|Project title=Restoration of the River Impiönjoki~~
	\|Status=Complete		\|Status=Complete
	\|Themes=Fisheries, Habitat and biodiversity, Hydromorphology		\|Themes=Fisheries, Habitat and biodiversity, Hydromorphology
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	\|Main contact surname=Huhtala		\|Main contact surname=Huhtala
	\|Main contact id=Kasvio		\|Main contact id=Kasvio
			\|Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland
	\|Multi-site=No		\|Multi-site=No
			\|Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.

			The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.

			The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.

			The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.

			Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards.

			The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.
	}}		}}
	{{Image gallery}}		{{Image gallery}}

Kasvio: Created page with "{{Case study status |Approval status=Draft }} {{Location |Location=65.98459308486954, 27.204079627990723 }} {{Project overview |Project title=Restoration of the River Impiönj..."

2013-12-19T10:07:44Z

Created page with "{{Case study status |Approval status=Draft }} {{Location |Location=65.98459308486954, 27.204079627990723 }} {{Project overview |Project title=Restoration of the River Impiönj..."

New page

{{Case study status
|Approval status=Draft
}}
{{Location
|Location=65.98459308486954, 27.204079627990723
}}
{{Project overview
|Project title=Restoration of the River Impiönjoki
|Status=Complete
|Themes=Fisheries, Habitat and biodiversity, Hydromorphology
|Country=Finland
|Main contact forename=Jarmo
|Main contact surname=Huhtala
|Main contact id=Kasvio
|Multi-site=No
}}
{{Image gallery}}
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{{Case study subcatchment}}
{{Site}}
{{Project background}}
{{Motivations}}
{{Measures}}
{{Hydromorphological quality elements header}}
{{End table}}
{{Biological quality elements header}}
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{{Other responses header}}
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{{Monitoring documents}}
{{Monitoring documents end}}
{{Additional Documents}}
{{Additional Documents end}}
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{{Supplementary Information}}
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