Understanding Great Structures: Dutch Delta Works

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lhanson
Sep 16, 2014


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Education, Science

Understanding Great Structures: Dutch Delta Works

Deltawerken
Students visited Delta Works projects in the Netherlands in conjunction with the Fall 2014 course Understanding Great Structures.

Fall 2014 students enrolled in the course Understanding Great Structures ventured out from the MV Explorer, which had made port in Antwerp, Belgium, to the Netherlands to increase their understanding about how low-lying countries protect their land and people from being inundated with water.  Professor Richard D’Amato led the field program with visits to Oosterscheldekering, Maeslantkering, and Rotterdam, studying three different engineering marvels with the same purpose: coping with water intrusion.

Neeltje Jans
Students gather to view Oosterscheldekering, the Eastern Scheldt Storm Surge Barrier.

Windmills of Holland
Local guide Roland Vanbosseghem stands with the students beneath a windmill while discussing the Oosterscheldekering.

 
“With 47% of the Netherlands below sea level, the Oosterschelde Barrier protects half of the country.  The bridge is made up of 65 pillars that close the barrier, which takes two hours, when a storm surge happens.  The barrier system was built from cables and concrete, materials we had read about in class.  It took about 10 years to build and has been closed 20 times since it was completed in 1986.  There were also windmills right next to the barrier.  The windmills made the experience even greater because I’ve never been that close to one!  You can hear the windmill roar as it turns through the wind.  I never imagined how big one was until I stood under it!”  – Kayla Bernel, University of Hawaii Hilo

Maeslantkering
Students pass beneath one of the two giant doors that swing into the waterway to form a barrier when the surge is greater than three meters.

 

 

 

“The Maeslandkering structure really stood out to me because the barrier closes a span of approximately 360 meters, but is designed to allow ships into the harbour of Rotterdam.  I found it interesting that four Eiffel Towers could be built with the amount of steel used to build the barrier and the size of the trusses really impressed me.  Also, the area is covered in dykes to protect the farmland near the ocean, which reminds me of home because the Annapolis Valley (where I go to University) has a lot of dykes.”  – Breanna Boyd, Acadia University

Maeslantkering
Professor Rich D’Amato (right) discusses the Maeslant Barrier with Raul Gonzalez (left), a student at Universidad Iberoamericana.

“At the end of the day we had the chance to see the Erasmus Bridge, or Swan Bridge.  It is a cable-stay bridge that earns it nickname by the large supporting column that is bent in the shape of the neck of a swan.  In class we learned how the bridge supports itself, like the placement of the cables versus the beams.  Actually seeing the bridge in person made it easy to feel just how great the accomplishment of building the bridge was.  It looks like it shouldn’t function with many cables on one side versus only two on the other.  However, putting my feet on the bridge and feeling its sturdiness gave me confidence in the engineers who designed it as well as the materials that allow it to stand.”  – Lucy Call, University of Virginia

Erasmusbrug
The Erasmus Bridge spans the Nieuwe Maas, linking the northern and southern regions of Rotterdam.
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