Putting Tide Gauges On Fill Dirt

Lower Manhattan is about twice the area that it used to be, because fill dirt was brought in. This increased the weight of the island. They also added several feet of concrete and a jungle of tall, heavy buildings. All of these things cause the land to sink – a lot. Three feet of concrete would make the land sink two feet.

Then, to add insult to injury they put the tide gauge on the fill dirt, which tends to compact on it’s own.

Lower Manhattan tide gauge.

After making the land sink, the final stage of the process is to blame the relative rise in sea level on CO2, even though it has been happening at a steady rate for more than 150 years.

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About stevengoddard

Just having fun
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2 Responses to Putting Tide Gauges On Fill Dirt

  1. gator69 says:

    If they are not careful, that island could capsize, just like Guam!

  2. Ben says:

    Steven,

    May I add to your excellent points? Natural subsidence of the continental margin in NY.

    MS Steckler, AB Watts 1978
    Subsidence of the Atlantic-type continental margin off New York
    http://goo.gl/sttuZ

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