storm surge barriers - propeller club of northern california
TRANSCRIPT
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Storm Surge Barriersin the Netherlands
&
I-STORM
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Marc Walraven M.Sc.
+31 6 22461277
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Marc Walraven, M.Sc.Rijkswaterstaat, Ministry of Infrastructure and Water Management
• Formerly District Manager and responsible for management and operations storm surge barriers in Rotterdam Region
• Senior advisor Storm Surge Barriers
• Leader Operational Team Maeslant Barrier
• Co-founder and Member of Delivery Board I-STORM network
Email: [email protected]
Cell: +31 6 22461277
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Galveston, after Ike in 2008 New Orleans, after Katrina in 2005
Netherlands, 1953London, 1953
What we have in common
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Maeslant Barrier - 1997
Haringvliet Sluices / Barrier - 1970
Hartel Barrier - 1996
Ramspol Barrier - 2002
Hollandse IJssel Barrier - 1958
Eastern Scheldt Barrier - 1985
Storm Surge Barriersin the Netherlands
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237 m
210 m
360 m17 m
780 ft
820 ft
1,180 ft
57 ft
Maeslant Barrier
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Sharing experiences &Lessons Learned
The design and building period gets much attention andfinancial support
But then . . . . the challenge begins with
Management, Maintenance & Operationsas a daily business
for another 100-200 years
Two examples . . . .
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Example 1 – Ball Joint
Facts• The ball joint: a 30ft steel ball rotating in
a steel hollow. Designed to be‘maintenance friendly’
• Already after 5 years (and only test closures)
Two Problems• Technical problem: Unexpected rapidly
wear of the coating of the steel hollow• Additional environmental problem: New
laws blocked the use of specializedcoating
Solutions• Short term: Additional maintenance
turned out to be no permanent solution• Longer term: Alteration of design (2-4
million euro’s)
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11 15-11-2020
Example 2 –2006 – Frontpage news
Within 10 years the fully automated Decision and Support System appeared far less reliable then thought of during design
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Focus on optimising design, usually not on MMO
Focus on reduction building costs
Cheaper design alternatives often not as good thought through
Design considerations (or changes to it in final stages) are often not
registrated thoroughly in documents and systems
Lack of involvement responsible MMO representatives
. . .
Design mostly unique and prototype
The unicity and specific characteristics of each barrier constrain the
value that the industry can add with short term contracts
MMO organization faces many unforeseen challenges
Sub systems generally designed for other use
. . .
Characteristicsand challenges
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Stress on required knowledge and experience
Low frequency of use or testing (shipping, required water levels)
Mostly governmental organisation responsible
Development, construction and building attract common interest, but
maintenance and operations define reliability
High reliability requirements demand professional asset
management
. . .
Changing environment during life time up to or more than 100 years
Environmental rules and new added functionalities increase the
challenges
Regulations, policies and organizations change frequently with
mostly unpredictable but significant influence
. . .
Characteristicsand challenges
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Politics&
Policies
Organization&
Processes
Knowledge&
Craftmanship
Technology&
Innovation
1 2
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Characteristicsand challenges
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Conclusive Note:
To prove that a storm surge barrier operates to its (legal)
requirements, it has to achieve high standards
for maintenance, operations and organization
Therefore, pay special or equal attention to those aspects
already in the phase of design and construction
I-STORM
can be the community to learn, share and develop experiences
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International Network for
Storm Surge Barriers
(I-STORM)
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About I-STORM
• For Storm Surge Barrier (SSB) professionals around the world
• Sharing knowledge and experience to improve management, maintenance and operation of SSBs
An international knowledge sharing network
• To better protect people, places and property from flooding
• Continuously improve barrier operations, management and performance
• Collaborate on research and development
• Established in 2006
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Environment Agency
Rijkswaterstaat
ConsorzioVenezia Nuova
US Army Corps Engineers
I-STORM’s
Core Members
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Barrier Members• MOW Vlaanderen, Niewpoort Barrier Belgium• PUB, Singapore• SLFPA-E, New Orleans, USA
Associate Members• Arcadis, NL & USA• Aveco de Bondt, NL• Bosh Rexroth, NL• CGI, NL• CTBS, TAMUG, USA• Dannenbaum Engineering, USA• Delta Pi, NL• Deltares, NL• DSAM, NL• Intermedion, NL
• Royal Haskoning, NL• Texas Government Land Office, USA• TNO, NL• Technical University Delft, NL• Waterworks @ B Business Energy, NL• Hollandia Infra BV, NL• HR Wallingford, NL, USA• University of Southampton
• Jacobs, UK• KGAL, UK• Paul van Poorten Consulting, NL• NRG, NL• Danish Coastal Authority, DK
Current Members
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Galveston, after Ike in 2008
Design Workshop Galveston
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Operational Review Venice
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Questions?