International Network of Storm Surge Barriers

The I-STORM network brings together professionals that build, manage, operate and maintain Storm Surge Barriers. 

I-STORM aims to continuously improve standards of operation, management and performance in order to reduce the risk of severe flooding of people, property and places around the world, by facilitating knowledge exchange amongst members.

We aim to:

  • improve SSB operation, management and performance
  • inform concept, design and construction of new SSBs
  • optimise SSBs performance within Flood Risk System
  • understand impacts of environmental factors (such as the impacts of climate change including sea level rise) on SSBs
  • Collaborate on research and development

I-STORM shares knowledge and experience though a variety of activities:        

  • International peer reviews,
  • Working groups 
  • Technical knowledge exchange visits
  • Members Community of Practice area on our website
  • Newsletters

Annual Meeting 2016: I-STORM marks decade of knowledge sharing! 

Annual 2016 1

Storm Surge Barrier (SSB) professionals from the UK, Italy, USA, Belgium, Holland and Russia were amongst the 150 delegates at I-STORM’s 2016 Annual Meeting at the Eastern Scheldt Barrier in the Netherlands in October. The event provided an opportunity for colleagues to share their knowledge, be inspired and improve the performance of SSBs.



This year’s event marked the 30th anniversary of Eastern Scheldt and a decade of the I-STORM network. Delegates heard about the latest operations and developments at SSBs from around the world, and participated workshops ranging from: Sea Level Rise; Risk Based Asset Management; Peer Review; Knowledge Management and more, each designed to facilitate the sharing of expertise and assist future improvements.


Willy Dekker, Director of Network Management at the Rijkswaterstaat and I-STORM Strategic Board Chair said:  ‘I’m proud that the I-STORM network has grown in professionalism whilst remaining so open and hospitable. I’m confident that we’ve built a solid governance in which Core, Barrier and Associate Members can play their role in sharing their specialist knowledge on operating, managing and maintaining Storm Surge Barriers.


I saw many new initiatives between members, who shared interest and inspiration for further cooperation. I very much encourage this and hope you do whatever is needed to stimulate that kind of cooperation. ‘

Annual 2016 2 Annual 2016 3Annual 2016 4 Annual 2016 5


Annual Meeting presentations

Member’s can view and download presentations and the programme book for I-STORM Annual Meetings by first logging into member’s area.

  • 2016 Annual Meeting held in Holland, hosted by the Rijkswaterstaat at the Eastern Scheldt Barrier.
  • 2015 Annual Meeting held in Venice, hosted by the Venice Water Authority and Consorzio Venezia Nuova at MOSE.
  • 2014 Annual Meeting held in England, hosted by The Environment Agency at the Thames Barrier.


News items

Can the UK learn from Dutch approach to living with water?

Marc Walraven, Storm Surge Barrier Senior Advisor at the Rijkswaterstaatand an I-STORM Delivery Board member has been interviewed by the ITV about the Dutch approach to managing flood risk. Link to ITV interview

Dutch Water Board share their key to success in engaging the community

Environment Agency colleagues have visited the Waterschap to learn more about the approach to temporary defences and engaging volunteers in Kampen, the Netherlands. Member link to presentation.

The two-day lifting test on Nov 28-29 2014 of 21 Mose sluice at Lido Nord. The 21 Gates staying on caissons in the bottom of the sea at the mouth of North Shore functioned exactly as it was intended.          

See the press release here


More Photos Venice test 21 sluices Nov 28-29 2014 Login required!


Newsletter 2015

Newsletter 2014

Newsletter February 2011

Newsletter October 2010

Newsletter December 2009

Newsletter May 2009


Select the latest news items. 

I-STORM conference 2013 in Venice

Last I-STORM Conference Venice 2013

Visit I-STORM New Orleans

From 17-19th of April a delegation with I-STORM members from the Environment Agency, Rijkswaterstaat, Waterboard Groot Salland and Consorzio Venezia Nuova and Magistrato alle acque di Venezia have visited USACE and the SLFPA offices and barriers.