{"id":456,"date":"2024-01-20T20:13:42","date_gmt":"2024-01-20T20:13:42","guid":{"rendered":"https:\/\/dhwnews.com\/?p=456"},"modified":"2024-01-21T11:17:50","modified_gmt":"2024-01-21T11:17:50","slug":"sub-standard-hydraulic-modelling","status":"publish","type":"post","link":"https:\/\/dhwnews.com\/?p=456","title":{"rendered":"Sub-standard hydraulic modelling?"},"content":{"rendered":"<p align=\"left\">The Public Inquiry into the MWEFAS planning application was held in Reading &#8211; October\/December 1992<span lang=\"EN-GB\">\u00a0and reported in 1993<\/span><\/p>\n<p align=\"left\"><span lang=\"EN-GB\">Here is an extract from the expert view of the Assessor: P Ackers &#8211; M Sc(Eng) FCGI FICE MIWEM MASCE &#8211; on the hydraulic models used to justify the scheme.<\/span><\/p>\n<p>A\u00a0<a href=\"https:\/\/flooding.london\/jrp\/Jubilee%20River%20story%20-%200010.htm#Scan\">scan<\/a>\u00a0of the original section of the report is produced below.\u00a0 For a digital copy of the full Public Inquiry report, please\u00a0contact me.<\/p>\n<p style=\"font-weight: 400;\"><strong>An extract from 1992 Maidenhead, Windsor and Eton Flood Alleviation Scheme Public Inquiry &#8211; Report to Minister.<\/strong><\/p>\n<ol start=\"15\">\n<li style=\"font-weight: 400;\">Further aspects of hydraulic performance<\/li>\n<\/ol>\n<p style=\"font-weight: 400;\">15.1. <strong><span style=\"color: red;\">It would be\u00a0very embarrassing to all concerned\u00a0if the intended discharge capacity of the FRC<sup>\u00a0<a href=\"https:\/\/flooding.london\/jrp\/Jubilee%20River%20story%20-%200010.htm#(1)\">(1)<\/a><\/sup> was 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.<\/span><\/strong><\/p>\n<p style=\"font-weight: 400;\"><strong><span style=\"color: red;\">This is the largest fluvial flood alleviation scheme ever to be carried out in the Thames region, and <\/span><span style=\"color: red;\">any deficiency in capacity would bring wide-spread &#8211; and justified &#8211; criticism.\u00a0<\/span><\/strong><\/p>\n<p style=\"font-weight: 400;\">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<p style=\"font-weight: 400;\">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.\u00a0 It is my firm view that\u00a0there is no room for retaining optimistic assumptions 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<p style=\"font-weight: 400;\">Assessor: P Ackers &#8211; M Sc(Eng) FCGI FICE MIWEM MASCE<\/p>\n<p>END<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Public Inquiry into the MWEFAS planning application was held in Reading &#8211; October\/December 1992\u00a0and reported in 1993 Here is an extract from the expert view of the Assessor: P Ackers &#8211;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-456","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sub-standard hydraulic modelling? - DHWNEWS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dhwnews.com\/?p=456\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sub-standard hydraulic modelling? - DHWNEWS\" \/>\n<meta property=\"og:description\" content=\"The Public Inquiry into the MWEFAS planning application was held in Reading &#8211; October\/December 1992\u00a0and reported in 1993 Here is an extract from the expert view of the Assessor: P Ackers &#8211;...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dhwnews.com\/?p=456\" \/>\n<meta property=\"og:site_name\" content=\"DHWNEWS\" \/>\n<meta property=\"article:published_time\" content=\"2024-01-20T20:13:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-21T11:17:50+00:00\" \/>\n<meta name=\"author\" content=\"ecwlarcombe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"ecwlarcombe\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=456#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=456\"},\"author\":{\"name\":\"ecwlarcombe\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/person\\\/2f696cd1eb9c322931f8d0e39fdf8017\"},\"headline\":\"Sub-standard hydraulic modelling?\",\"datePublished\":\"2024-01-20T20:13:42+00:00\",\"dateModified\":\"2024-01-21T11:17:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=456\"},\"wordCount\":288,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#organization\"},\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/dhwnews.com\\\/?p=456#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=456\",\"url\":\"https:\\\/\\\/dhwnews.com\\\/?p=456\",\"name\":\"Sub-standard hydraulic modelling? - DHWNEWS\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#website\"},\"datePublished\":\"2024-01-20T20:13:42+00:00\",\"dateModified\":\"2024-01-21T11:17:50+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=456#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/dhwnews.com\\\/?p=456\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=456#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/dhwnews.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sub-standard hydraulic modelling?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#website\",\"url\":\"https:\\\/\\\/dhwnews.com\\\/\",\"name\":\"DHWNEWS\",\"description\":\"Datchet, Horton &amp; Wraysbury News\",\"publisher\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/dhwnews.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#organization\",\"name\":\"DHWNEWS\",\"url\":\"https:\\\/\\\/dhwnews.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/dhwlogo1.png?fit=357%2C334&ssl=1\",\"contentUrl\":\"https:\\\/\\\/i0.wp.com\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/dhwlogo1.png?fit=357%2C334&ssl=1\",\"width\":357,\"height\":334,\"caption\":\"DHWNEWS\"},\"image\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/person\\\/2f696cd1eb9c322931f8d0e39fdf8017\",\"name\":\"ecwlarcombe\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g\",\"caption\":\"ecwlarcombe\"},\"url\":\"https:\\\/\\\/dhwnews.com\\\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Sub-standard hydraulic modelling? - DHWNEWS","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dhwnews.com\/?p=456","og_locale":"en_GB","og_type":"article","og_title":"Sub-standard hydraulic modelling? - DHWNEWS","og_description":"The Public Inquiry into the MWEFAS planning application was held in Reading &#8211; October\/December 1992\u00a0and reported in 1993 Here is an extract from the expert view of the Assessor: P Ackers &#8211;...","og_url":"https:\/\/dhwnews.com\/?p=456","og_site_name":"DHWNEWS","article_published_time":"2024-01-20T20:13:42+00:00","article_modified_time":"2024-01-21T11:17:50+00:00","author":"ecwlarcombe","twitter_card":"summary_large_image","twitter_misc":{"Written by":"ecwlarcombe","Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/dhwnews.com\/?p=456#article","isPartOf":{"@id":"https:\/\/dhwnews.com\/?p=456"},"author":{"name":"ecwlarcombe","@id":"https:\/\/dhwnews.com\/#\/schema\/person\/2f696cd1eb9c322931f8d0e39fdf8017"},"headline":"Sub-standard hydraulic modelling?","datePublished":"2024-01-20T20:13:42+00:00","dateModified":"2024-01-21T11:17:50+00:00","mainEntityOfPage":{"@id":"https:\/\/dhwnews.com\/?p=456"},"wordCount":288,"commentCount":0,"publisher":{"@id":"https:\/\/dhwnews.com\/#organization"},"articleSection":["Uncategorized"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/dhwnews.com\/?p=456#respond"]}]},{"@type":"WebPage","@id":"https:\/\/dhwnews.com\/?p=456","url":"https:\/\/dhwnews.com\/?p=456","name":"Sub-standard hydraulic modelling? - DHWNEWS","isPartOf":{"@id":"https:\/\/dhwnews.com\/#website"},"datePublished":"2024-01-20T20:13:42+00:00","dateModified":"2024-01-21T11:17:50+00:00","breadcrumb":{"@id":"https:\/\/dhwnews.com\/?p=456#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/dhwnews.com\/?p=456"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/dhwnews.com\/?p=456#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/dhwnews.com\/"},{"@type":"ListItem","position":2,"name":"Sub-standard hydraulic modelling?"}]},{"@type":"WebSite","@id":"https:\/\/dhwnews.com\/#website","url":"https:\/\/dhwnews.com\/","name":"DHWNEWS","description":"Datchet, Horton &amp; Wraysbury News","publisher":{"@id":"https:\/\/dhwnews.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/dhwnews.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/dhwnews.com\/#organization","name":"DHWNEWS","url":"https:\/\/dhwnews.com\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/dhwnews.com\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/dhwnews.com\/wp-content\/uploads\/2022\/10\/dhwlogo1.png?fit=357%2C334&ssl=1","contentUrl":"https:\/\/i0.wp.com\/dhwnews.com\/wp-content\/uploads\/2022\/10\/dhwlogo1.png?fit=357%2C334&ssl=1","width":357,"height":334,"caption":"DHWNEWS"},"image":{"@id":"https:\/\/dhwnews.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/dhwnews.com\/#\/schema\/person\/2f696cd1eb9c322931f8d0e39fdf8017","name":"ecwlarcombe","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/secure.gravatar.com\/avatar\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g","caption":"ecwlarcombe"},"url":"https:\/\/dhwnews.com\/?author=1"}]}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts\/456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=456"}],"version-history":[{"count":10,"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts\/456\/revisions"}],"predecessor-version":[{"id":476,"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts\/456\/revisions\/476"}],"wp:attachment":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}