Editing Delta Works (section)

====Environmental policy implementations====
In an attempt to restore and preserve the natural system surrounded by the dykes and storm-surge barrier, the concept 'building with nature' was introduced in revised Delta Program updates after 2008. The new integrated water management plan not only takes into account protection against flooding, but also covers water quality, [[leisure industry]], economic activities, shipping, environment and nature. Whenever possible, existing engineering constructions would be replaced by more 'nature friendly' options in an attempt to restore natural estuary and tides, while still protecting against flooding.<ref>{{cite journal|last1=Kabat|first1=Pavel|last2=Fresco|first2=Louise|last3=Stive|first3=Marcel J.F.|last4=Veerman|first4=Cees P.|last5=van Alphen|first5=Jos S.L.J.|last6=Parmet|first6=Bart W. A. H.|last7=Hazeleger|first7=Wilco|last8=Katsman|first8=Caroline A.|title=Dutch coasts in transition|journal=Nature Geoscience|date=July 2009|volume=2|issue=7|pages=450–451|doi=10.1038/ngeo572|bibcode=2009NatGe...2..450K}}</ref> In addition, building components of the reinforcements are designed in a way that they support formation of entire ecosystems.<ref>{{cite journal|last1=Deltares|title=Bouwen met de natuur in de praktijk|journal=Delta Life|date=2014|volume=1|pages=14–15}}</ref> As part of the revision, the [[Room for the River (Netherlands)|Room for the River]] projects, enabled nature to occupy space by lowering or widening the river bed.<ref>{{cite journal|last1=Van Buuren|first1=A|last2=Ellen|first2=G.J.|last3=Warner|first3=J.F.|title=Path-dependency and policy learning in the Dutch delta: toward more resilient flood risk management in the Netherlands?|journal=Ecology and Society|date=2016|volume=21|issue=4|doi=10.5751/es-08765-210443|doi-access=free}}</ref> In order to establish this, agricultural flood plains are turned into natural parks, excavated farmland is used for wild vegetation and newly excavated lakes and bypasses create habitats for fish and birds.<ref>{{cite journal|last1=Rijcken|first1=Ties|title=A critical approach to some new ideas about the Dutch flood risk system|journal=Research in Urbanism Series|date=2015|volume=3|issue=1}}</ref> Along the coast, natural sand is added each year to allow sand to blow freely through the dunes instead of having the dunes held in place by planted vegetation or revetments.<ref>{{cite web|last1=DGW|title=Nationaal Waterplan|website=rijksoverheid.nl|url=https://www.rijksoverheid.nl/documenten/rapporten/2009/12/01/nationaal-waterplan-2009-2015|archive-url=https://web.archive.org/web/20150926204410/https://www.rijksoverheid.nl/documenten/rapporten/2009/12/01/nationaal-waterplan-2009-2015|url-status=dead|archive-date=September 26, 2015|publisher=Ministerie van Infrastructuur en Milieu}}</ref> Although the new plan brought along additional cost, it was received favourably.{{citation needed|date=November 2018}} The re-considerations of the Delta Project indicated the growing importance of integrate environmental impact assessments in policy-making.