Broadmarsh Coastal Park Revetment Repairs – 2017

ESCP sea defence inspections following the first storm of 2016 (Storm Angus) identified damage to the fragile coastal revetments at Broadmarsh. These structures were built in the 1960/1970’s and are at the end of their design life. They are prone to further damage during storm events, requiring numerous patch repairs over the years, but these are becoming more frequent, less effective and are also becoming prone to damage.

In light of the regular failures of this defence, we are proposing to replace the section of damaged concrete revetment with rock revetment (as used successfully by the ESCP at North Portsea Island) which will allow better flow through the structure and be more resilient to damage. We will shortly be starting works on site having secured the necessary planning, environmental and footpath consents. 

We are planning to undertake an appraisal study to identify the longer term preferred option for replacement of the defences in light of the recent decision to cease repairing the failing revetments on a like for like basis.

The main objectives for these works are:

  • Reducing the health and safety risk to the public
  • Maximising the residual life of the structure
  • Preventing pollution to Langstone Harbour

The repairs, funded by Havant Borough Council, will be carried out by Avon Construction Ltd. The work will begin on 7th June 2017 and are expected to last for a period of 1 month. The work will involve removal of the failed areas of defence. These locations will then be replaced using rock to form a sloping revetment. The slope of the defence will be the same as existing however the materials that will be used are different to those currently in place. 

Due to the nature of the works, and the movement of large equipment on site, we will be closing the footpath along this section of coastline for the duration of the works on site to maintain public safety. Hampshire County Council has approved the closure, and a temporary diversion has been put in place. Maps of the diversion route are provided on site and will be advertised on the Havant Borough Council website. Whenever possible we will aim to re-open the footpath during the weekends to allow public access during these times. 

For further information please contact us at info@escp.org.uk

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