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I have a suspicion that the approach that will be used is the Dutch approach and a Dam will be built across the Block Island Sound enabling reclamation of signi
by awjr 9y ago
I have a suspicion that the approach that will be used is the Dutch approach and a Dam will be built across the Block Island Sound enabling reclamation of significant amounts of land. The value of NYC and the ability to expand the city should make it worth while.
I suspect dams will be used to protect Miami which already suffers from sea flooding.
- positr0n 9y agoMy understanding of the hydrology around Miami is that dams won't work. Water will just seep through the ground.
- athenot 9y agoMiami also has a huge amount of rain, as well as tropical storms.
- adanto6840 9y agoI'm actually really intrigued, somewhat enamored even, by this idea. The newly-created land seems like it would be astronomically valuable, and so the value proposition is surprisingly interesting to me. Brings a lot of questions to mind -- Are there any comparable projects, of such massive scale (or even somewhat close), to compare to? Especially on cost? Does the sudden influx of that much land not cause existing land value to plummet, or is there an established way to ration it into the market to help mitigate that? Is this something that could even happen politically, or would entrenched interests / existing land owners prefer to create canals (not sure if realistic, but curious) which would probably reduce the property inventory & in theory increase value?
- maxlybbert 9y agohttps://en.wikipedia.org/wiki/Delta_Works https://en.wikipedia.org/wiki/Delta_Works It doesn't answer all your questions, especially since economists have noticed that the US has trouble keeping large public works on budget, but it's the obvious project to look at.
- collinmanderson 9y agoChicago expanded their shoreline via landfill from 1870-1940. Not sure about cost / land value. http://www.encyclopedia.chicagohistory.org/pages/3713.html http://www.encyclopedia.chicagohistory.org/pages/3713.html https://www.cityofchicago.org/content/dam/city/depts/cdot/ShorelineHistory.pdf https://www.cityofchicago.org/content/dam/city/depts/cdot/Sh... A modern article says an additional 225 acres could add $62.5B. https://chicago.curbed.com/2015/1/21/10001048/we-could-keep-the-lakefront-sacred-by-adding-more-of-it https://chicago.curbed.com/2015/1/21/10001048/we-could-keep-... Also, somewhat related, Chicago raised their city 6 ft in the 1850-1860's. https://en.wikipedia.org/wiki/Raising_of_Chicago https://en.wikipedia.org/wiki/Raising_of_Chicago
- kej 9y agoHere's a theoretical larger project, as well: https://en.wikipedia.org/wiki/Atlantropa https://en.wikipedia.org/wiki/Atlantropa
- jcranmer 9y agoMiami is basically screwed when it comes to rising sea levels. Florida is not a very high state, to start with. The Everglades are basically a 60-mile wide river because there's insufficient height to actually channelize them. If the sea level rises around 5-7m, Miami starts flooding from the western direction as well. Protecting Miami would mean building an island in a shallow sea, not enclosing a bay. The other problem is that South Florida is built on a very porous bedrock, so there is significant underground hydrology. The sea is largely kept out by the pressure of Lake Okeechobee and related hydrological systems pushing against the salt water intrusion. Even if you built up the land in Miami itself, as the rest of Florida floods, the sea starts making better inroads and Miami floods from underneath.
- merpnderp 9y ago5-6m of sea level rise is so far in the future we'll observe it from our floating cities powered by harvested zero-point energy.
- 24gttghh 9y agoWhat to do about the Hudson though?