Case study:Mains of Dyce

0.00

(0 votes)

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

Location: 57° 12' 49.37" N, 2° 11' 22.06" W

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 Mains of Dyce\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003ECountry:\u003C/b\u003E \u003Ca href=\"/wiki/index.php?title=Scotland\" title=\"Scotland\"\u003EScotland\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 Hydromorphology\n\u003C/p\u003E\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E","title":"Mains of Dyce","link":"","lat":57.213714535637,"lon":-2.1894621358758,"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	Hydromorphology
Country	Scotland
Main contact forename	Hamish
Main contact surname	Moir
Main contact user ID
Contact organisation	cbec eco engineering
Contact organisation web site	http://www.cbecoeng.co.uk/
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

Mains of Dyce, newly completed. Photograph courtesy of cbec eco engineering

Project summary

Edit project overview to modify the project summary.

SEPA required the culverted channel to be “re-daylighted”. The overarching aim was to restore catchment scale processes as much as possible, taking a long term sustainable rather than quick fix approach. Constraints on the scale of restoration included: large housing development close by, lack of a catchment scale management plan, lack of funding and knowledge. Housing developer initially carried out works, resulting in an unstable channel design. Two one in ten year flooding events which occurred in 2009 caused severe incision of the channel up to 2.7 meters, which in total was estimated to have removed 539m3 of material. cbec eco engineering was subsequently contracted to re-design the channel. Step-pool design was chosen based on modelling. Works included bed and bank profiling, and step construction from boulders and smaller cobbles/gravels. Monitoring has indicated that channel design is stable.

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.

Catchment and subcatchment

Select a catchment/subcatchment

Edit the catchment and subcatchment details
(affects all case studies in this subcatchment)

Catchment

River basin district	North East Scotland
River basin	Don

Subcatchment

River name	Don
Area category
Area (km2)
Maximum altitude category
Maximum altitude (m)
Dominant geology
Ecoregion
Dominant land cover	Intensive agriculture (arable), Improved/semi-improved grassland/pasture, Broadleaf/mixed woodland (semi natural)
Waterbody ID

Site

Edit site

Name	Mains of Dyce
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology	Closed culvert
Reference morphology	Open culvert
Desired post project morphology
Heavily modified water body	No
National/international site designation
Local/regional site designations
Protected species present	No
Invasive species present	No
Species of interest
Dominant hydrology
Dominant substrate
River corridor land use
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)	165165 m <br />0.165 km <br />16,500 cm <br />
Project started	2009/08/01
Works started
Works completed
Project completed	2010/09/01
Total cost category
Total cost (k€)
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	culverted channel
Hydromorphology
Biology
Physico-chemical
Other reasons for the project	housing development

Measures

Edit Measures

Structural measures
Bank/bed modifications	step pool
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

Image gallery

Edit Image gallery

Additional documents and videos

Upload additional documents

Additional links and references

Edit links and references

Link	Description

Supplementary Information

Edit Supplementary Information