As specialists in the water environment, desilting lakes is one of our core activities. We have completed a variety of projects, including this one at Barwick House.
Barwick House is surrounded by beautiful parkland with a lake, grotto, gothic lodge and a group of four follies. The lake had become overgrown to the point where there was only 300mm of water over the silt. To preserve the picturesque appearance, the lake required a full refurbishment to restore it to its true form. Working closely with the client, we removed over 7000m3 of silt from the lake which was deposited on an area of adjacent woodland.
Prior to the works, our ecologist surveyed the area to ensure that removal of the trees and vegetation would not disturb any habitats within the woodland and lake area. A full report was created, with guidelines to follow for the duration of the works, alongside obtaining the appropriate licenses to allow the spreading of the silt onto the land.
For access, a section of trees were felled and an area of vegetation cut back, enhancing the woodland area at the same time. The lake was then drained and the fish rescued to a nearby holding pond.
In addition to the desilting works, we installed 40 metres of post and rail oak ‘campshedding’ that provides a neat and classic edge detail, widely used for revetment. The overflow structure was also refurbished.
When all the silt had been removed, we allowed the lake to refill with water, returned the fish to the lake and cultivated the silt disposal area.