I wish to take issue with Peter Ackers' statement that 'the optimum location [for the Severn Barrage] between Brean Down and Lavernock Point was not established until the Bondi Committee's work' (NCE 11 May).
I was a post graduate civil engineering student at the University of Shefeld from 1965 working under the supervision of Dr Eric Wilson, then senior lecturer in hydraulics.
He was researching and promoting tidal power schemes for the Severn, Solway, and other sites based on the use of large, low head, 'run of the river' turbines being developed by the English Electric Company. .
His proposal for the Severn involved a barrage from Brean Down to Lavernock Point. The scheme was for single-direction generation with gates to regulate the return ow.
He presented a paper on this proposal to the ICE in Bristol in 1965 or '66 I believe, and also published of other papers on his various proposals.
It may well be that his work was considered by the Bondi Committee, but the thinking was 10 to 15 years earlier.
Ray Caine (M, retired) 49, hunters Crescent, Romsey, Hants, SO51 7UG