A Map of the Proposed Conduit, Reclamation, and Sea Wall
A proposal to reclaim land on Foulness Sands and on the Flats north of the River Crouch.
Displayed scale of 1+10 miles = 70mm, or 4.0 miles/inch, ie 1:255,000.
I don't think it happened. Can't see a "Sea Wall" either.