Guide Sidmouth Beach Management Plan: Frequently Asked Questions Show all parts of this guide What is a beach management plan? Why does Sidmouth need a beach management plan? What area of Sidmouth does the Beach Management Plan cover? What are the aims Sidmouth and East Beach Management Plan? What happens once the Beach Management Plan is completed? Who will pay for a beach management scheme? Why aren’t you doing something now? Why has the Beach Management Plan taken longer than expected? Who are the advisory group? What do the advisory group do? Who are CH2M? What has caused the most recent erosion at East Beach? Do you expect it to return to normal historic rates? Why are historic rates of erosion slower than the erosion we see now? What will happen to Alma Bridge? Why wasn't East Beach included in the 2015 beach recycling work? Why can’t we move beach material from Salcombe Hill further West? Why does some of the analysis show the cliffs “growing towards France”? How are you making sure the BMP complements the work at Port Royal? Why is using rock armour to protect the base of the cliff being ruled out? Rock armouring can be seen to be effective on East Beach, so why are groynes being proposed which will require maintenance of the beach? Why isn't the rock used which is more in keeping with the setting? Why haven’t rock armouring options of shorter lengths, and offset from the cliffs been considered? An application for rock armouring would take less time What is the glass panel installed on Sidmouth seafront, and how does it fit with the BMP? What is the wall designed to do? What is the planned lifespan of the wall? What is the assumed sea level rise over the planning period and what is the error margin? What height of wall does this range suggest is needed? What is the height of the proposed wall? Why is the wall planned at the lower end of the assumed range? How long will a concrete wall last? How long will a glass wall last? Could a glass wall be protected from vandalism by security cameras? If the barrier were placed along the current railings rather than between the Esplanade and the road, would the same height of barrier be needed? If after, say, 15 years, the sea level rise is accelerating how can the wall be raised? If the wall is made from concrete can it be raised or will it need to be demolished and rebuilt? Could a smaller concrete (e.g. 0.6m) wall be installed now with a view to placing glass panels on top should sea level rise occur as predicted and would this give greater flexibility in the event that sea level rise was not as predicted now? If the wall is made from glass can the stanchions be raised and larger glass panels installed? Which option would be more flexible given the uncertainty around the actual sea level rise? Which option would be cheaper in the event that the height needs to be raised? What is the required height for the splash defence, and where does it start and finish? 30. How long will a concrete wall last? 100 years.