For the first time in history, all five major storm surge gates in the Netherlands are closed simultaneously in the wake of a storm.<sup about="#mwt261" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-50"}}' id="cite_ref-50" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_3#cite_note-50" id="mwAYE" style="counter-reset: mw-Ref 50;"><span class="mw-reflink-text" id="mwAYI">[50]</span></a></sup>
<span class="mw-reference-text reference-text" id="mw-reference-text-cite_note-50"><cite about="#mwt257" class="citation web cs1 cs1-prop-foreign-lang-source" id="CITEREFRijkswaterstaat2018"><a class="mw-redirect" href="./Directorate-General_for_Public_Works_and_Water_Management" id="mwClw" rel="mw:WikiLink" title="Directorate-General for Public Works and Water Management">Rijkswaterstaat [@Rijkswaterstaat]</a> (January  3, 2018). <a class="external text" href="https://x.com/Rijkswaterstaat/status/948552979703005185" id="mwCl0" rel="mw:ExtLink nofollow">"#Uniek: Al onze vijf grote stormvloedkeringen sluiten vandaag! Dat is nog nooit eerder voorgekomen. De #Maeslantkering en de #Hartelkering zijn de laatste twee keringen die vanwege de storm en de verhoogde waterstanden dicht gaan. https://t.co/jig5fzCU8K"</a> (<a href="./Tweet_(social_media)" id="mwCl4" rel="mw:WikiLink" title="Tweet (social media)">Tweet</a>) (in Dutch)<span class="reference-accessdate" id="mwCl8">. Retrieved <span class="nowrap" id="mwCmA">31 December</span> 2020</span> <span id="mwCmE" typeof="mw:Entity">–</span> via <a href="./Twitter" id="mwCmI" rel="mw:WikiLink" title="Twitter">Twitter</a>.</cite><span about="#mwt257" class="Z3988" id="mwCmM" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=%23Uniek%3A+Al+onze+vijf+grote+stormvloedkeringen+sluiten+vandaag%21+Dat+is+nog+nooit+eerder+voorgekomen.+De+%23Maeslantkering+en+de+%23Hartelkering+zijn+de+laatste+twee+keringen+die+vanwege+de+storm+en+de+verhoogde+waterstanden+dicht+gaan.+https%3A%2F%2Ft.co%2Fjig5fzCU8K&amp;rft.date=2018-01-03&amp;rft.au=Rijkswaterstaat&amp;rft_id=https%3A%2F%2Fx.com%2FRijkswaterstaat%2Fstatus%2F948552979703005185&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+3"></span><link about="#mwt257" href="./Category:CS1_Dutch-language_sources_(nl)" id="mwCmQ" rel="mw:PageProp/Category"/></span>