4 ms·
How much would that be if it's a concrete platform with polystyrene on the inside for buoyancy?
by iwwr 12y ago
How much would that be if it's a concrete platform with polystyrene on the inside for buoyancy?
- dalke 12y agoAnd able to stand up to the occasional typhoon? I have no idea. The point of my exercise was to establish a minimum cost, to show why the idea isn't economically practical. Japan's Mega-float cost $150 million in 1999 for 1km x 60 meters. It was designed as a floating airport for use in a protected bay. The floating airport proposal ("Floatport") for San Diego was estimated at $10-$30 billion. Both show that my $50 billion estimate is very low. Then again, you don't actually need floating structures. As an alternative estimate, a cubic meter of soil is about $35. The cost of 1 meter of soil spread across 100 sq. km is $3.5 billion, plus shipping. I see no way to get lower than that number. I see many way to get a lot higher.