Landscaping The River Lea
The Southern wetlands were established over the course of 2011. The works comprised of the removal of 1km of sheet piles behind which growing media was placed and re enforced reed mats were planted.
The removal of the sheet piles was challenging as the cutting level of 1.9AOD meant that the piles had to be cut below the water line.
Testing The Theory
After extensive research and tests in Norfolk, Willerby Landscapes procured a plasma cutter utilised in offshore diving activities and developed a method of cutting that allowed this operation to be performed on programme.
All cutting works were performed from the river side, off a purpose built pontoon and the scrap piles were recovered off site via barge.
Working With British Waterways
The tidal nature of the river meant that extensive liaison with British Waterways was required and Willerby Landscapes employed a site manager specifically for this task.