Case study:Restoration of Juottimenoja Brook

0.00

(0 votes)

To discuss or comment on this case study, please use the discussion page.

Location: 60° 11' 22.62" N, 23° 5' 57.75" E

Edit location

Loading map...

{"format":"googlemaps3","type":"HYBRID","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":50,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"... further results","default":"","import-annotation":false,"width":"auto","height":"400px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":14,"layers":[],"controls":["pan","zoom","type","scale","streetview","rotate"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"resizable":false,"kmlrezoom":false,"poi":true,"cluster":false,"clustergridsize":60,"clustermaxzoom":20,"clusterzoomonclick":true,"clusteraveragecenter":true,"clusterminsize":2,"imageoverlays":[],"kml":[],"gkml":[""],"searchmarkers":"","fullscreen":false,"scrollwheelzoom":false,"showtitle":false,"hidenamespace":true,"template":"Location map popup","userparam":"","activeicon":"","pagelabel":false,"ajaxcoordproperty":"","ajaxquery":"","locations":[{"text":"\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Title:\u003C/b\u003E Restoration of Juottimenoja Brook\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003ECountry:\u003C/b\u003E \u003Ca href=\"/wiki/index.php?title=Finland\" title=\"Finland\"\u003EFinland\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Status:\u003C/b\u003E Complete\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EThemes:\u003C/b\u003E Flood risk management\n\u003C/p\u003E\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E","title":"Restoration of Juottimenoja Brook","link":"","lat":60.189617,"lon":23.0993759,"icon":"/wiki/images/a/af/Red_marker.png"}]}

Left click to look around in the map, and use the wheel of your mouse to zoom in and out.

Project overview

Edit project overview

Status	Complete
Project web site
Themes	Flood risk management
Country	Finland
Main contact forename	Jukka
Main contact surname	Jormola
Main contact user ID
Contact organisation	Finnish Environment Institute
Contact organisation web site
Partner organisations	Centre for Economic Development, Transport and the Environment for Southwest Finland
Parent multi-site project
This is a parent project encompassing the following projects	No

Juottimenoja after restoration (photo: Liisa Laitinen).jpg

Project summary

Edit project overview to modify the project summary.

Juottimenoja brook is a small tributary of the Kiskonjoki-Perniönjoki River located in south-west Finland. The surrounding of Juottimenoja is intensively cultivated and the latest dredging was in 1970. The brook suffered severe erosion and siltation problems due to erosion-prone soil, intensive farming, and previous straightening. Juottimenoja brook was restored because fields were inundating during high flows. The objective of the restoration was to decrease water levels, and thus field flooding, and control the in-channel erosion during high flows and siltation during low flows as the aim to maintain the brook morphological and ecological diversity and self-purification capacity while meeting the drainage needs of the farmland. In the latest drainage project in 2007 flood terrace were excavated and nature-like submerged weirs were constructed to stop erosion. Besides drainage the environmentally sound measures could help to maintain the original sea trout population in the brook.

Monitoring surveys and results

This case study hasn’t got any Monitoring survey and results, you can add some by editing the project overview.

Lessons learnt

This case study hasn’t got any lessons learnt, you can add some by editing the project overview.

Image gallery

Edit Image gallery

Juottimenoja before restoration (2-stage drainage channel) (photo: Auri Sarvilinna).jpg

Juottimenoja restoration (photo: Liisa Laitinen).jpg

Juottimenoja after restoration (photo: Liisa Laitinen).jpg

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Kiskonjoki-Perniönjoki River Basin River basin Subcatchment River name Juottimenoja Brook Area category Area (km2) Maximum altitude category Maximum altitude (m) Dominant geology Organic (i.e. Peat) Ecoregion Fenno-Scandian Shield Dominant land cover Intensive agriculture (arable) Waterbody ID Site Edit site Name Juottimenoja Brook Catchment WFD water body codes WFD (national) typology WFD water body name Pre-project morphology eroded channel Reference morphology Desired post project morphology Heavily modified water body National/international site designation Local/regional site designations Protected species present Invasive species present Species of interest Dominant hydrology Ephemeral, Quick run-off Dominant substrate River corridor land use Intensive agriculture (arable) Average bankfull channel width category Average bankfull channel width (m) Average bankfull channel depth category Average bankfull channel depth (m) Mean discharge category Mean annual discharge (m3/s) Average channel gradient category Average channel gradient Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) Project started 2007/01/01 Works started Works completed 2007/01/01 Project completed Total cost category 50 - 100 k€ Total cost (k€) 63 k€63,000 € <br /> Benefit to cost ratio Funding sources Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Flood risk management Hydromorphology Quantity & dynamics of flow, Continuity of sediment transport, Width & depth variation, Structure & condition of intertidal zone Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information