Case study:Logie Burn Restoration Project: Difference between revisions

From RESTORE
Jump to navigation Jump to search
No edit summary
No edit summary
Line 21: Line 21:
}}
}}
{{Case study subcatchment}}
{{Case study subcatchment}}
{{Site}}
{{Site
|WFD water body code=23372
|WFD (national) typology=Mid-altitude, Small, Calcareous
|WFD water body name=Logie Burn / Loch Davan
|Heavily modified water body=No
|Protected species present=No
|Invasive species present=No
|Dominant hydrology=Artificially regulated,
}}
{{Project background}}
{{Project background}}
{{Motivations}}
{{Motivations}}

Revision as of 11:59, 7 March 2013

This case study is pending approval by a RiverWiki administrator.

Approve case study

 

4.00
(one vote)


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


Location: 57° 6' 45.71" N, 2° 55' 33.60" W
Loading map...
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 Habitat and biodiversity, Hydromorphology, Monitoring
Country Scotland
Main contact forename Estelle
Main contact surname Gill
Main contact user ID
Contact organisation Scottish Natural Heritage
Contact organisation web site http://www.snh.gov.uk/
Partner organisations
Parent multi-site project
This is a parent project
encompassing the following
projects
No
This case study hasn’t got a picture, you can add one by editing the project overview.

Project summary

Edit project overview to modify the project summary.


The Logie Burn is graded as poor for its ecological status due to diffuse sediment and nutrient inputs in addition to morphological alteration. These issues account for agricultural and drainage demand over many decades. To begin with, the Logie Burn was canalized and dredged of original bed material. Two meanders were cut-off as part of the engineering works for straightening and deepening the burn. In particular, straightening of the Logie burn had adverse effects on in-stream diversity and lowered the burn’s ability to filter out silt being carried downstream.

This project targeted 160 m reach of the Logie Burn and included the re-connection of the two old meanders that were previously sealed off from the main channel. The primary purposes of the re-connection were to restore morphology, improve river habitat, enhance riparian habitat diversity and demonstrate this type of restoration to river managers. Enhancement of in-channel phosphorous storage also contributed to the reduction of the phosphorus transfer into the Loch Davan downstream of the Logie.

A monitoring programme commenced in July 2011 to assess how the geomorphology, habitat, phosphorous storage and the flood attenuation capacity of the reach change over time. Topographical and sedimentary surveys were undertaken before and after the re-connection and will be repeated annually. In addition, stream flow is being continuously monitored to allow assessment of the flood attenuation capacity and to help understand the geomorphic changes observed.

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



Site

Edit site
Name
WFD water body codes 23372
WFD (national) typology Mid-altitude, Small, Calcareous
WFD water body name Logie Burn / Loch Davan
Pre-project morphology
Reference morphology
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 Artificially regulated
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)
Project started
Works started
Works completed
Project completed
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
Hydromorphology
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



Image gallery



Additional documents and videos

Upload additional documents


Additional links and references

Edit links and references
Link Description

Supplementary Information

Edit Supplementary Information