Flood Alleviation Project

Flooding_Dulwich_Park_Resized_500Southwark Council has prepared a Preliminary Flood Risk Assessment which identifies certain areas, including Herne Hill and Turney Road, as being at risk of flooding by both sewer and ground water.  (This initiative began long before the recent burst main on Half Moon Lane.)  The drains in the area have insufficient capacity to cope with severe rainstorms, which are becoming more common due to climate change.

Herne Hill Flood Alleviation measures – Dulwich Park

Southwark Council has prepared a Preliminary Flood Risk Assessment which identifies certain areas, including Herne Hill and Turney Road, as being at risk of flooding by both sewer and ground water.  (This initiative began long before the recent burst main on Half Moon Lane.)  The drains in the area have insufficient capacity to cope with severe rainstorms, which are becoming more common due to climate change.

The latest plan for Dulwich Park involves the construction of a long ‘bund’ (a low bank of earth) extending from the north to the south across the park, just east of the playground. They also wish to site several geocellular tanks under the grass close to the Francis Peek centre, and to the east of the playground, to form a holding areas for water in severe storms.  These would not be visible above ground.  Finally they hope to install sand traps to prevent sand from the horse ride blocking the drains.

Questions that the Friends of Dulwich Park are considering include whether the constructions will materially alter the appearance of the park, where the water will drain to, whether the areas affected will be more waterlogged than previously during a prolonged rainy period, and how disruptive the construction will be to the everyday life of the park.  The Friends have also suggested areas adjacent to the lake which could be altered to retain water during flooding and at the same time could be improved by the construction of bog gardens.

The flood management team have assured us that no important trees will suffer from the construction work and they suggest that biodiversity will be improved.  They are anxious for the public to become involved in the design and they arranged 3 design workshops.  Following these the plans were significantly altered, taking into account the views of the Friends and those local residents who were present.  They are now putting in for planning permission to enable the works to proceed.

If you have any views on these important changes to the park, please e -mail us at dulwichparkfriends@gmail.com.