Last week BAM Nuttall began creating a temporary dam at Model Boating Pond using metal sheet piles. These are being driven into the ground using a silent vibration-less technique by a Giken piling rig. It will take approximately four weeks to pile across the whole pond, with the crane floating on pontoons as it crosses the pond. When the sheet-pile dam has been completed the southern end of the pond will be drained to enable construction work of the new raised dam. Fish from the southern edge of the pond will be rescued and placed in the remaining area of the pond.
This temporary dam will remain in place until the existing dam has been raised, it will then be removed the same way it was created – with the piling rig moving backwards and pulling the sheet piles out of the ground.