Skip to content
thames barrier hill

Join this research network

This website is open to new members who wish to post new research and design or planning proposals about adaptation in coastal cities. Our focus is on climate change as a driver of adaptation, but of course other issues matter as well — economic and demographic trends, port activities, biodiversity support, fisheries, and so on.

Whether you are a professional, an academic, or a student — if you think you have something to share that could help, please accept our invitation to participate in the discussion about how coastal cities can meet their challenges! Just email the editor (kzhill@virginia.edu) to find out how to join.

Looking forward to welcoming your ideas,

 

Kristina Hill, PhD (Editor)

Associate Professor

University of Virginia

 

 

k_featureimage

Graduate Design Studio, University of Virginia

Led by:  Kristina Hill, PhD

Associate Professor

 

This course deals with coastal adaptation by exploring the applicability of the Dutch “sand engine” concept to American shorelines. The sand engine is a large island or promontory of dredged sand that was placed strategically on the Dutch coast just north of Rotterdam in January of 2011, where the dunes need to be widened to protect the coast from storms. The Dutch idea is simple– create habitat on the new sandy island, and let the waves carry it onto the shore to thicken the dunes over time. Money and fuel are saved by not pumping the sand directly onto the shore and spreading it with bulldozers, which is the standard practice in so-called “beach nourishment” projects all over the world.

Since many American coastal areas will face increased flooding and erosion over the next several decades and more, as a result of increased rates of sea level rise and continuing geologic subsidence, we’re working on ideas for how to use the Dutch sand engine approach, and do it well. Our goals are to bring together inspiring aesthetic experiences, habitat and recreation benefits, as well as the structural benefits for beaches and dunes.

_________________________________________________________________________________________

Foundation Studio II: “Form follows flows”

Course Description spring 2011

The primary questions of this course are (1) whether can we propose forms by starting with an understanding of flows? And (2), does it make a difference in our proposals if we conceive of flows before forms?

This course challenges students to use an understanding of the flows of organisms, materials, and energy in landscapes as a point of departure for proposing a civic landscape, the public park, in the context of an urbanizing field pattern.

This year, the studio will begin by exploring the Dutch strategy of using artificial islands or spits that are built with dredged sand as a way of expanding the sand dunes along their coastline for storm protection. The flows involved are first the flow of material to the island site via dredge boats. Second, the wind and wave effects that alter the island and redistribute its sand to other locations (including tidal forces, wave action, seasonal winds, storm events, and increasing rates of sea level rise). Third, the flow of organisms: colonization by plants and animals, migratory use by animals, and predation by carnivores. And finally, the flow of human organisms that come to the island /spit for recreation and as part of a culturally-mediated aesthetic experience.

sand engine links to student proposals
sand gauge links to student proposals

IMG_2259_3

Graduate Thesis: Design Proposals

 

Laura Sasso Grounded Structuration

Grounded Structuration investigates a process for amplifying the potential relationship between the design of the public realm and the politics of community. The design explores how site specific meaning and meaningful experiences can be associated with the retrofitting of infrastructure in New Orleans’ St. Roch community. St. Roch is named after the patron Saint of Good Health, memorializing the community’s auspicious beginning. Ironically, a fragmented drainage network, contaminated soils and blighted properties now threaten the vitality of the once thriving community. Reimagining the community from the ground up is an opportunity to reinvigorate the health of St. Roch.


Recent Articles

7
Aug

Zandmotor / Sand Engine Project

Strategy ARTIFICAL ISLAND
Location Ter Heijde, Zuid-Holland, Netherlands
Size Initial size is 100 hectares. Over time the sand will accreat along the shore creating 35 hectares of new beaches.
Costs The national government will contribute EUR 58 million  and the Province EUR 12 million to fund the project. (2011)
Timeline Construction scheduled for January 2011 to March 2012.  The process of distributing the sand is projected to take twenty years.
Materials 21.5 million m3 of sand
Design Team The Ministry of Infrastructure and the Environment is responsible for the engineering.
Project The Zandmotor is innovate coastal protection project in the Netherlands. The sand engine is an artificial peninsula being constructed with dredged material along the Ter Heijde coastline. Overtime the sand in the artificial peninsula will be distributed by wind, waves and currents along the shoreline of South Holland. There will be two offshore replenishing sites designated in the “motor” for continued beach nourishment.  Since the Zandmotor is a new coastal protection strategy research is being conducted on the impacts and the relationship between the environmental forcing and the sediment dynamics.  One goal of the Zandmotor is to make more room for nature and the extent to which that is achieved will be assessed through long-term monitoring.  By March 2012 the initial construction phase is scheduled to be completed.
Links
general information http://www.sandengine.nl/
general information http://english.verkeerenwaterstaat.nl/english/news/newsitems/provinceofzuidhollandexpandsseawards.aspx
animation http://3dcapacity.eu/en/portfolio/zandmotor.html
process photos http://www.flickr.com/photos/zandmotor
flooding history http://www.deltawerken.com/The-Flood-of-1953/1523.html
engineering http://www.vanoord.com/gb-en/our_newsroom/archive_news_releases/news_archive_2010/sand_engine_project/index.php
scientific research http://journals.tdl.org/ICCE/article/viewFile/1454/pdf_357
park http://www.sandengine.nl/
news/future http://www.dredgingtoday.com/2011/01/19/the-netherlands-sand-engine-project-starts/

6
Aug

Tokyo’s Super-dikes

Strategy SUPER DIKE (Adaptable Flood Defense)
Location Tokyo, Japan  (Arakawa River, Tama River)
Size 14.5km (approximate proportions: 10 meters high 300 meters wide)
Costs JPY100 billion (2009)
Timeline Super Levee Project: 1985-2009
Materials lots of till, Underground Regulating Reservoir, A tunnel (length: 4.5km; internal diameter: 12.5m) with the capacity to hold 540,000 m3 of flood water. )
Design Team  City planning
Project A super-dike is a very wide levee with a gradual inward slope.  An average super-dike is 10 meters high by 300 meters wide.  The extended width of the dike can be integrated into the urban fabric of the city by using the land to developed high density housing, create a high quality public realm along the waterfront and by using the higher ground as a designated, lower-risk evacuation area. Conceptualizing flood protection as part of a multifunctional infrastructure for the city is an important lesson from the Japanese super-dikes strategy.
Links
general information http://www.kensetsu.metro.tokyo.jp/c40/act6_E/PDF/Gentle-Slope_Levees_and_Super_Levees.pdf
animation
flooding history http://www.rotterdamclimateinitiative.nl/nl/delta_cities_website/cities/tokyo?categrory_id=8
changing flood characteristics(’91-05) http://www.kensetsu.metro.tokyo.jp/c40/act6_E/PDF/Changes_in_Flood_Characteristics.pdf
rivers of Tokyo http://www.kensetsu.metro.tokyo.jp/c40/act6_E/PDF/Map_of_rivers_in_Tokyo.pdf
engineering http://www.mlit.go.jp/river/basic_info/english/pdf/conf_20.pdf
Climate Change C40 http://www.rotterdamclimateinitiative.nl/nl/delta_cities_website/cities/tokyo?categrory_id=8
park http://search.japantimes.co.jp/cgi-bin/nn20020312m2.html
Kanda River/Loop Road No.7 http://www.kensetsu.metro.tokyo.jp/c40/act6_E/PDF/Loop_Road_No.7_Underground_Regulating_Reservoir.pdf
5
Aug

Inner Harbor Navigation Canal Surge Barrier (IHNC)


Strategy Fixed Barrier (floodwall + moveable gates)
Location East of New Orleans, Louisiana   (United States)
Size 10,000 feet (1.8 miles)
Costs Projected 1.3 billion dollars (2010)
Timeline Authorized in 2006. Construction scheduled to finish in 2011.
Materials Concrete floodwall, steel batter piles, steel batter piles, steel batter piles
Design Team U.S. Army Corps of Engineers, Eustis Engineering (Geotechnical Designer), Bioengineering Group, The Shaw Group
Project Authorized by Congress in 2006 the Inner Harbor Navigation Canal Surge Barrier (IHNC) is being built to protect the region from the devastating effects of storm surges, similar to one that occurred in the wake of hurricane Katrina. The floodwall is located at the confluence of the Mississippi River Gulf Outlet and Gulf Intracoastal Waterway.  The IHNC floodwall is engineered to provide protection for a 100-year level risk reduction for the region and it is a part of a network of flood risk reduction strategies implemented in the Hurricane and Storm Damage Risk Reduction System (HSDRRS) for delta region.
Links
general information http://www.mvn.usace.army.mil/pd/projectslist/home.asp?projectID=300
animation http://www.mvn.usace.army.mil/hps2/videos/ihncanimation/ihncanimationvideo.asp
flooding history http://mshistory.k12.ms.us/index.php?id=94
Geotechnical engineering http://www.eustiseng.com/projects_1.aspx
Civil engineering http://www.usace-isc.org/presentation/Civil%20Engineering/IHNC-Lake%20Borgne%20Barrier%20DeSoto-Duncan-Angela%20Revised.pdf
wetlands& storm surges http://www.mvn.usace.army.mil/environmental/lca.asp
news/future http://www.dredgingtoday.com/2010/02/01/usa-new-orleans-1-1-billion-surge-barrier-construction-works-half-way/
Louisiana’s Coastal Crisis http://coastal.louisiana.gov/index.cfm?md=pagebuilder&tmp=home&pid=117