Here is the 1988 Contraction Plan document for Brockhall and Calderstones.
In the end Brockhall closed in 1992, and Calderstones (as a long-stay institution) in 2000.
The Contraction Plan is in sections which can be seen by clicking on the PDF links below.
(Please note that at the edge of one or two PDFs the wording is missing. This is because of the binding on the hard copy document.)
The document is courtesy of Mrs Brenda Kay