{"id":50876,"date":"2026-05-06T09:07:40","date_gmt":"2026-05-06T07:07:40","guid":{"rendered":"https:\/\/www.swecobelgium.be\/?post_type=showroom_cpt&#038;p=50876"},"modified":"2026-05-06T09:07:40","modified_gmt":"2026-05-06T07:07:40","slug":"oosterweel-smart-groundwater-management-and-infiltration-for-a-robust-water-system","status":"publish","type":"showroom_cpt","link":"https:\/\/www.swecobelgium.be\/en\/showroom\/oosterweel-smart-groundwater-management-and-infiltration-for-a-robust-water-system\/","title":{"rendered":"Oosterweel: smart groundwater management and infiltration for a robust water system"},"content":{"rendered":"<section class=\"block fwmb\" >\n\t<div class=\"block__inner editor-content fwmb__inner fwmb__inner--right fwmb__inner--image\">\n\n        <div class=\"fwmb__media col col-12\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1680\" height=\"560\" src=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/Oosterweel-construction-site-1680x560.jpg\" class=\"attachment-fwmb-image size-fwmb-image\" alt=\"photo of part of the construction site of Oosterweel, excavation with deep walls\" \/>\t\t<\/div>\n\n        \n        \n\t<\/div>\n<\/section>\n\n<section class=\"block architects-intro block--white\" >\n\t<div class=\"block__inner architects-intro__inner\">\n\t\t<div class=\"col--11 col--start col--wrapper editor-content\">\n\t\t\t\t\t\t\t<div class=\"col col--5\">\n                    <p class=\"architect-special hyphenate\"><a href=\"https:\/\/www.swecobelgium.be\/en\/expertise\/good-soil\/\">Healthy Soil<\/a> &amp; Water<\/p>\n\t\t\t\t\t<h1 class=\"h1 hyphenate\">Oosterweel: smart groundwater management and infiltration<\/h1>\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"col col--4 push--1\">\n\t\t\t\t\t\t\t\t\t\t<p><p>The Oosterweel Link is one of the most complex infrastructure projects in Belgium. In addition to mobility and liveability, water also plays a crucial role.<br \/>\nThe ring sections and tunnels extend deep into the subsoil and interact with the local <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> system.<br \/>\nSweco supports the client with an integrated water and infiltration concept, from the study phase through to operation.<\/p>\n<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\n            \t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n<section class=\"block block--lightgray arc-facts\" >\n\t<div class=\"block__inner arc-facts__inner\">\n\t\t<div class=\"col--11 col--wrapper col--end editor-content\">\n\t\t\t\n            <dl class=\"items col col--12\">\n                                    <dt class=\"item item--left\"><span>Expertise:<span><\/dt>\n                    <dd class=\"item item--right\"><span>Climate resilience &amp; nature, Water<\/span><\/dd>\n                                    <dt class=\"item item--left\"><span>Client<span><\/dt>\n                    <dd class=\"item item--right\"><span>Lantis<\/span><\/dd>\n                                    <dt class=\"item item--left\"><span>Location<span><\/dt>\n                    <dd class=\"item item--right\"><span>Antwerp<\/span><\/dd>\n                                    <dt class=\"item item--left\"><span>Sweco scope<span><\/dt>\n                    <dd class=\"item item--right\"><span>Design of the <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> monitoring network, development of the <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> model, infiltration and buffering<\/span><\/dd>\n                            <\/dl>\n\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n<section class=\"block cb block--white\" >\n\t<div class=\"block__inner cb__inner cb__inner--one\">\n\t<div class=\"col--12 col--center col--wrapper\">\n\t\t<div class=\"col col--6 editor-content\">\n\t\t\t<h2>Challenge: major works in a vulnerable groundwater system<\/h2>\n<p>During the construction phase, <strong>large-scale, long-term<\/strong> <strong>dewatering operations<\/strong> are required to keep excavation pits, trenches and sunken ring sections dry. Such dewatering can locally result in:<\/p>\n<ul>\n<li>a drop in <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> levels;<\/li>\n<li>settlement affecting existing infrastructure;<\/li>\n<li>drying out of green areas, parks and gardens;<\/li>\n<li>potential impacts on foundations and wells in the surrounding area.<\/li>\n<\/ul>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n<section class=\"block fwmb\" >\n\t<div class=\"block__inner editor-content fwmb__inner fwmb__inner--right fwmb__inner--image\">\n\n        <div class=\"fwmb__media col col-12\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1680\" height=\"560\" src=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/antwerpen-oosterweel-rightbank-kt-section-26_day-1680x560.jpg\" class=\"attachment-fwmb-image size-fwmb-image\" alt=\"render of a cross-section of Oosterweel, showing a traffic tunnel underwater.\" \/>\t\t<\/div>\n\n        \n        \n\t<\/div>\n<\/section>\n\n<section class=\"block cb block--white\" >\n\t<div class=\"block__inner cb__inner cb__inner--one\">\n\t<div class=\"col--12 col--center col--wrapper\">\n\t\t<div class=\"col col--6 editor-content\">\n\t\t\t<h2>Integrated approach: from measurement to on-site adjustment<\/h2>\n<p>To understand and manage impacts on the water system, Sweco contributed to an <strong>integrated approach<\/strong> covering all phases of the project:<\/p>\n<h4>Study phase: mapping the groundwater system<\/h4>\n<p style=\"padding-left: 40px\">Within the Antwerp project area, an extensive <strong><a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> monitoring network<\/strong> comprising more than 200 dataloggers and telemetric divers has been deployed. Based on these measurements, and taking seasonal fluctuations into account, the reference <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> situation was mapped in detail.<br \/>\nThese data provided the basis for a comprehensive <strong><a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> model<\/strong>, used to test scenarios and mitigation measures.<\/p>\n<h4>Design: mitigation measures<\/h4>\n<p style=\"padding-left: 40px\">Diaphragm walls extend down into impermeable subsoil layers. They slow <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> flow and limit inflow into the excavation pits.<br \/>\nThe design also accounts for potential long-term upstream effects, such as higher <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> levels. These effects are assessed using the <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> model.<\/p>\n<h4>Execution: real-time monitoring and level-controlled dewatering<\/h4>\n<p style=\"padding-left: 40px\">The 200 dataloggers transmit <strong><a href=\"https:\/\/www.swecobelgium.be\/en\/digitalisation\/data-management\/\">real-time data<\/a><\/strong>, enabling level-controlled dewatering. As a <strong>water-saving measure<\/strong>, <a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> levels are not lowered more than strictly necessary.<br \/>\nThe <a href=\"https:\/\/www.swecobelgium.be\/en\/digitalisation\/data-management\/\">real-time data<\/a> are reported periodically to advisory bodies and support adjustments where required.<\/p>\n<h4>Construction phase: water quality<\/h4>\n<p style=\"padding-left: 40px\">The quality of the <strong>effluent from dewatering operations<\/strong> is continuously monitored.<br \/>\nBefore discharge, it is treated in a <strong><a href=\"https:\/\/www.swecobelgium.be\/en\/services\/industrial-water-solutions\/\">wastewater treatment<\/a> installation<\/strong>: only treated water is released into the environment.<\/p>\n<p>This results in a <strong>chain-based approach<\/strong>: from reference measurements, through modelling and the design of measures, to monitoring and adjustment during construction and operation.<\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n<section class=\"block block--white columns\" >\n\t<div class=\"block__inner columns__inner\">\n\t\t<div class=\"col--11 col--wrapper col--stretch\">\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"columns__col col col--6\">\n\t\t\t\t\t<div class=\"editor-content columns__content columns__content--image\">\n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2879\" src=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large.jpg 1920w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-133x200.jpg 133w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-768x1152.jpg 768w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-1024x1536.jpg 1024w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-1366x2048.jpg 1366w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-520x780.jpg 520w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-800x1200.jpg 800w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-200x300.jpg 200w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-300x450.jpg 300w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-17-large-652x978.jpg 652w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"columns__col col col--6\">\n\t\t\t\t\t<div class=\"editor-content columns__content columns__content--image\">\n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2879\" src=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large.jpg 1920w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-133x200.jpg 133w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-768x1152.jpg 768w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-1024x1536.jpg 1024w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-1366x2048.jpg 1366w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-520x780.jpg 520w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-800x1200.jpg 800w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-200x300.jpg 200w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-300x450.jpg 300w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/\u00a9Tom-Dhaenens-bodem-grondverzet-Oosterweel-2025-12-large-652x978.jpg 652w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n<section class=\"block cb block--white\" >\n\t<div class=\"block__inner cb__inner cb__inner--one\">\n\t<div class=\"col--12 col--center col--wrapper\">\n\t\t<div class=\"col col--6 editor-content\">\n\t\t\t<h2>Infiltration and buffering in the operational phase<\/h2>\n<p>The water story does not end after construction. The sunken ring and tunnels require <strong>limited permanent collection<\/strong> of leakage flows (seepage) to keep the infrastructure dry and safe. Here too, a structural monitoring programme ensures continuous oversight.<\/p>\n<p>In addition, buffering and blue-green structures must limit <strong>peak discharges<\/strong> to sewers and watercourses.<\/p>\n<p>For Oosterweel, Sweco supports the client and its partners, among other things, with:<\/p>\n<ul>\n<li>the design and roll-out of the <strong><a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> monitoring network<\/strong>;<\/li>\n<li>the development and refinement of the <strong><a href=\"https:\/\/www.swecobelgium.be\/en\/services\/groundwater-solutions\/\">groundwater<\/a> model<\/strong>;<\/li>\n<li>advice on <strong>mitigation measures<\/strong> (diaphragm walls, dewatering concepts, infiltration and buffering solutions);<\/li>\n<li>the set-up of <strong>level-controlled dewatering<\/strong> and real-time monitoring;<\/li>\n<li>reporting to and coordination with <strong>advisory bodies<\/strong>;<\/li>\n<li>integrating infiltration and buffering into the <strong>design of blue-green structures<\/strong>.<\/li>\n<\/ul>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n<section class=\"block form-block block--lightgray\" id=\"contact\">\n\t<div class=\"block__inner form-block__inner \">\n\n                    <div class=\"col--11 col--wrapper\">\n                                    <div class=\"col col--4 editor-content form-block__title\">\n                        <h3 class=\"h3 hyphenate\">How can we help you?<\/h3>                    <\/div>\n                    <div class=\"col--12 col\"><\/div>\n                \n                <div class=\"col col--4 editor-content\">\n                    How can we help your business? A team of experts is ready to assist you and see how we can help with your inquiry. When you submit this form, someone from our team will get in touch with you. This form is intended solely for more information about our Sweco business solutions.\r\n                <\/div>\n\n                <div class=\"col col--7\">\n                    <script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\nvar gform;gform||(document.addEventListener(\"gform_main_scripts_loaded\",function(){gform.scriptsLoaded=!0}),document.addEventListener(\"gform\/theme\/scripts_loaded\",function(){gform.themeScriptsLoaded=!0}),window.addEventListener(\"DOMContentLoaded\",function(){gform.domLoaded=!0}),gform={domLoaded:!1,scriptsLoaded:!1,themeScriptsLoaded:!1,isFormEditor:()=>\"function\"==typeof InitializeEditor,callIfLoaded:function(o){return!(!gform.domLoaded||!gform.scriptsLoaded||!gform.themeScriptsLoaded&&!gform.isFormEditor()||(gform.isFormEditor()&&console.warn(\"The use of gform.initializeOnLoaded() is deprecated in the form editor context and will be removed in Gravity Forms 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class='small'    aria-required=\"true\" aria-invalid=\"false\"  \/>\n                        <\/div><\/li><li id=\"field_19_11\" class=\"gfield gfield--type-phone gfield--input-type-phone gfield--width-full field_sublabel_below gfield--no-description field_description_below field_validation_below gfield_visibility_visible gform_phone\"  data-field-class=\"gform_phone\" ><label class='gfield_label gform-field-label' for='input_19_11'>Telephone number<\/label><div class='ginput_container ginput_container_phone'><input autocomplete=\"off\"  name='input_11' id='input_19_11' type='tel' value='' class='small'    aria-invalid=\"false\"   \/><\/div><\/li><li id=\"field_19_8\" class=\"gfield gfield--type-textarea gfield--input-type-textarea gfield--width-full full expanding-textarea gfield_contains_required field_sublabel_below gfield--no-description field_description_below field_validation_below gfield_visibility_visible gform_textarea\"  data-field-class=\"gform_textarea\" ><label class='gfield_label gform-field-label' for='input_19_8'>How can we help you?<span class=\"gfield_required\"><span class=\"gfield_required gfield_required_asterisk\">*<\/span><\/span><\/label><div class='ginput_container ginput_container_textarea'><textarea autocomplete=\"off\"  name='input_8' id='input_19_8' class='textarea medium'     aria-required=\"true\" aria-invalid=\"false\"   rows='10' cols='50'><\/textarea><\/div><\/li><li id=\"field_19_15\" class=\"gfield gfield--type-fileupload gfield--input-type-fileupload gfield--width-full field_sublabel_below gfield--no-description field_description_below field_validation_below gfield_visibility_visible gform_fileupload\"  data-field-class=\"gform_fileupload\" ><label class='gfield_label gform-field-label' for='gform_browse_button_19_15'>Add attachment(s)<\/label><div class='ginput_container ginput_container_fileupload'><div id='gform_multifile_upload_19_15' 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gform-theme-field-control'>\n\t\t\t\t\t\t\t\t\t\t\t<span class='gform_drop_instructions'>Drop files here or <\/span>\n\t\t\t\t\t\t\t\t\t\t\t<button type='button' id='gform_browse_button_19_15' class='button gform_button_select_files gform-theme-button gform-theme-button--control' aria-describedby=\"gfield_upload_rules_19_15\"  >Select files<\/button>\n\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div><span class='gfield_description gform_fileupload_rules' id='gfield_upload_rules_19_15'>Max. file size: 50 MB.<\/span><ul class='validation_message--hidden-on-empty gform-ul-reset' id='gform_multifile_messages_19_15'><\/ul> <div id='gform_preview_19_15' class='ginput_preview_list'><\/div><\/div><\/li><li id=\"field_19_12\" class=\"gfield gfield--type-consent gfield--type-choice gfield--input-type-consent gfield--width-full gfield_contains_required field_sublabel_below gfield--no-description field_description_below field_validation_below gfield_visibility_visible gform_consent\"  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