The Transport Department has applied for permission to increase the height of the structure – originally built as an anti-tank wall during the Occupation – from 8.4 metres to 8.7 metres.
Under the plans a curved lip would also be created that would send water and spray back into the sea.
According to the plans, the changes would reduce the amount of water coming over the top of the wall by 70 per cent.
The low-lying area is prone to flooding when southerly storms coincide with high tides, and when water is washed over the wall, debris from the beach can clog drains in the area.
If approved, the scheme would also include the construction of floodgates close to the Gunsite Slipway.
St Peter Constable John Refault said: ‘It’s an essential project to reduce the potential of flooding in the area.
‘The wall at that part of the bay slopes inward, towards the land, so the water just runs right over the top. What this would do is create a curved lip to throw it back out to sea.
‘We’re running into the winter now, and the weather is not going to get any better. The scheme is with Planning, but where we are with the construction programme I don’t know. It’s a mass pouring of concrete, so shouldn’t be too difficult.’
Mr Refault added that TTS had conducted a public consultation showing profiles of the potential changes at the site, which was followed by a public meeting.
