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| Grille Monitoring |
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Scottish Borders Council, Scotland
Supply of a Trash Screen monitoring and flood warning system, April 2007
Hydro-Logic was appointed to supply 4 trash screen monitors to the Scottish Borders Council. They were installed to monitor the level upstream of the screens and to provide alarms when the level reached a set threshold. This alarm was to be used by the council to indicate a build up of debris in front of the screen that would have created a flood risk potential. The alarms are transmitted along with collected data back to an IDQTel system operated out of the Councils Border Care Office.
The grilles were trouble spots for local flooding - they often became blocked with leaves and other debris and during periods of heavy rain would cause local flooding as the burns which flowed through them backed up behind the blocked grille.
One of the alarms systems is installed on Jedburgh's Skiprunning Burn, which was the cause of severe flooding on 3rd - 4th January 1982. Photos of the event can be found here.
In autumn 2005 the area was hit by heavy rainfall and the systems began to show their worth. The system in Jedburgh dialled out for three flood events in the early hours, and the prompt response of maintenance personnel clearing the material blocking the grille saved local residents from waking up to flooded basements.