{"id":187,"date":"2020-03-23T08:37:51","date_gmt":"2020-03-23T08:37:51","guid":{"rendered":"http:\/\/flooding.london\/rts\/?page_id=187"},"modified":"2020-04-10T09:47:16","modified_gmt":"2020-04-10T09:47:16","slug":"1992-inquiry-sub-standard-hydraulic-models","status":"publish","type":"page","link":"http:\/\/flooding.london\/rts\/1992-inquiry-sub-standard-hydraulic-models\/","title":{"rendered":"1992 MWEFAS Inquiry – Sub-standard Hydraulic Models?"},"content":{"rendered":"

Extract from 1992 Maidenhead, Windsor and Eton Flood Alleviation Scheme Public Inquiry Inspector’s Report to Minister.<\/strong><\/h3>\n

The Public Inquiry into the Maidenhead, Windsor and Eton Flood Alleviation Scheme\u00a0 (MWEFAS) planning application was held in Reading, Berkshire UK – October\/December 1992 and reported in 1993.<\/p>\n

Below is the expert view of the Assessor: P Ackers – M Sc(Eng) FCGI FICE MIWEM MASCE – on the hydraulic models used to justify the scheme.<\/p>\n

A scan of the original section of the report is produced below.\u00a0 For a digital copy of the full Public Inquiry report, please contact me.<\/a><\/strong><\/span><\/p>\n

\n

[This is a word processed copy of the original typed document.\u00a0 \u00a0<\/em><\/strong>A scanned image of the original document may be found further down the page]<\/strong><\/em><\/p>\n

    \n
  1. Further aspects of hydraulic performance<\/li>\n<\/ol>\n

    15.1. It would be\u00a0very embarrassing to all concerned<\/span>\u00a0if the intended discharge capacity of the FRC\u00a0(1)<\/sup>\u00a0was not achieved.\u00a0 Thus the hydraulic computations are particularly important, and in this context the sensitivity of the channel to the roughness coefficients used and the method of dealing with two-stage channels implicit in the modelling are dominant issues.<\/p>\n

    This is the largest fluvial flood alleviation scheme ever to be carried out in the Thames region, and\u00a0any deficiency in capacity would bring wide-spread \u2013 and justified \u2013 criticism.<\/span>\u00a0 It would be the largest man-made river to be created in the UK with full regard to the latest policies regarding environmental enhancements.<\/p>\n

    The question of the flow capacity likely to be obtained is not an issue that can be clouded over in the hope that design tolerances could later explain away any deficiency<\/span>.\u00a0 It is my firm view that\u00a0there is no room for retaining optimistic assumptions<\/span> in the hydraulic design:\u00a0 in view of the novelty and scale of environmental enhancements proposed, some conservatism, some consideration of tolerances on assumptions is necessary.<\/p>\n

    Assessor: P Ackers – M Sc(Eng) FCGI FICE MIWEM MASCE<\/p>\n

    \u00a0(1)<\/em><\/sup> Flood Relief Channel [now called the Jubilee River]<\/em><\/p>\n

    \n

    [This is the scan of original document]<\/strong><\/em><\/p>\n

    __________________<\/p>\n

    Local link to previous page<\/a>\u00a0<\/span><\/strong><\/p>\n

    Local link to\u00a0 Jubilee River Map (EA) 163kb.PDF<\/a><\/span><\/strong><\/p>\n

    END OF PAGE<\/p>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    Extract from 1992 Maidenhead, Windsor and Eton Flood Alleviation Scheme Public Inquiry Inspector’s Report to Minister. The Public Inquiry into the Maidenhead, Windsor and Eton Flood Alleviation Scheme\u00a0 (MWEFAS) planning application was held in Reading, Berkshire UK – October\/December 1992 and reported in 1993. Below is the expert view of the Assessor: P Ackers – ….  Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/pages\/187"}],"collection":[{"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/comments?post=187"}],"version-history":[{"count":11,"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/pages\/187\/revisions"}],"predecessor-version":[{"id":405,"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/pages\/187\/revisions\/405"}],"wp:attachment":[{"href":"http:\/\/flooding.london\/rts\/wp-json\/wp\/v2\/media?parent=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}