Several blots on that beautiful stretch of The River Deben near Melton, OK I accept that birds and other wildlife roost and seek protection in some of these wrecks but these have been here a number of years..........a sad sight!
The Rigs for use on Sizewell A Power Plant, I have actually been around the A Plant before it was decommissioned, these are the towers that drew the water in on one to 'ccol' the reactor and the other one further out at sea was used to deposit the 'hot' water. How true it was I do not know but it was said that the sea temperature rose quite dramatically around the furthest [out at sea] rig on discharge, the Rigs have been left to decay as they cannot be demolished as Kittiwakes have estabilished a Colony on the girders.
John, I think the answer to your question lies within the photo!
Centre right shows the attempts to stem the relentless erosion at that 'point'.... and the earlier forms of groyne did help to stem the longshore drift.
The current trend to construct massive stone/rock groynes is even less pleasing to the eye (as I am asure you would agree?) but it's that, or even more devastating erosion of our beaches and land.
John Cooper wrote:
Felixstowe from Brackenbury Cliffs with The Martello Tower and Bawdsey Manor in the background but what useful purpose do these groynes serve, to me they look like an eyesore, surely someone else can see this too