Economic optimization of coastal flood defence systems including storm surge barrier closure reliability

Storm surge barriers are large movable hydraulic structures which close during a storm surge to prevent coastal floods. In the regions they protect, a failure to close the barrier is often the most likely cause for a catastrophic flood. Nevertheless, flood risk assessments usually only focus on raising flood defences behind the barrier....

Flood Risk Assessment & Investment Framework: A framework for flood risk reduction strategies in the Hollandsche IJssel

The Hollandsche IJssel is a river between Rotterdam and Gouda and is protected from the main river system in the Netherlands by a storm surge barrier. The Hollandsche IJssel experiences several problems: the storm surge barrier dates from 1958 and has a relatively low closure reliability; three quarters of the dikes have been rejected according...

Storm surge barrier Tokyo Bay: Analysis on a system level and conceptual design

Tokyo Bay is an area exposed to storm surges generated by typhoons. Consequently lowlands along its coastline are subject to flood risk. Dike walls, levees and barriers have been developed by the Japanese to protect these coastal areas. In the coming decades it is expected that a rise in sea level will occur. Also, climate change is expected to...

Storm Surge Barrier: Overview and Design Considerations

In this study an overview of existing and planned storm surge barriers in the world is provided. A systematic analysis relates functional requirements (e.g. navigation and tidal exchange) to the main barrier characteristics (e.g. gate type, dimensions). Furthermore, as the costs of barriers are an important issue in the planning, available cost...

Reconnaissance Level Studies on a Storm Surge Barrier for Flood Risk Reduction in the Houston-Galveston Bay

The Houston - Galveston area is at significant risk from hurricane induced storm surges. This paper summarizes ongoing studies on flood risk reduction for the region. Firstly, based on a simplified probabilistic hurricane surge model , the return periods of surges within the bay have been estimated. This model framework can be used to assess the...

Climate Change Adaptation in Tokyo Bay: The Case for a Storm Surge Barrier

Increases in typhoon intensity and sea level rise could pose significant challenges to coastal defences around Tokyo Bay. In order to analyse the extent of future problems the authors determined the increase storm surge that could result from an increase in typhoon intensity and sea level rise to this area around the turn of the 21st century....

The Bolivar Roads Surge Barrier: A conceptual design for the environmental section

In response to the devastation caused by Hurricane Ike to the Galveston Bay Area, Texas, United States in September 2008, several proposals emerged to protect the region against future storm surges. One of them is a coastal spine called the ’Ike Dike’. A challenge for this 160 km [100 mi] long flood protection is to cross Bolivar Roads, a 2.8 km...

Design plan Oosterschelde Storm-surge barrier: Overall design and design philosophy

The 10 year struggle of the Rijkswaterstaat (State Department of Public Works) and contractors with the task to build a permeable sea defence structure in the Oosterschelde, has been registered in sixteen successive project reports which contain thousands of documents. These documents are sometimes complete part-project papers and sometimes not...