4 ms·

It's really interesting that 45 vertical ft of silt can pile up on top of something in 150 years.

by droithomme 11y ago

themartorana 11y ago
Makes you wonder what you walk over every day hidden beneath your feet.
- pjc50 11y ago
  In Europe, that could be anything from Roman ruins to unexploded WW2 bombs. Most suitably large construction digs will turn up something of archaeological interest.
  - apaprocki 11y ago
    That's what happened during the dig for our (Bloomberg) new London HQ. A ton of stuff was unearthed and will be featured in an exhibit on the site once the office opens. "'Entire streets' of Roman London uncovered in the City": http://www.bbc.com/news/uk-england-london-22084384 http://www.bbc.com/news/uk-england-london-22084384
- uptown 11y ago
  Some interesting history about Seattle: http://www.undergroundtour.com/about/history.html http://www.undergroundtour.com/about/history.html
- cleaver 11y ago
  In Toronto, it would be soldiers from the war of 1812 who were often buried where they fell. http://citiesintime.ca/toronto/story/surf-reveals/ http://citiesintime.ca/toronto/story/surf-reveals/
geon 11y ago
Much less than 150 years. Once the river moved, almost no more silt would be deposited.
dalke 11y ago
Some of that 45 feet is because the ship sank into the mud. Quoting https://en.wikipedia.org/wiki/Arabia_%28steamboat%29 https://en.wikipedia.org/wiki/Arabia_%28steamboat%29 : > The snag ripped open the hull, which rapidly filled with water. The upper decks of the boat stayed above water, and the only casualty was a mule that was tied to sawmill equipment and forgotten. The boat sank so rapidly into the mud that by the next morning, only the smokestacks and pilot house remained visible. Since two decks disappeared overnight, that suggests the boat sank at least 15 feet into the mud. We can assume the water depth was that of the hull and the first deck, but I can only come up with a wild guess that it's between 10' and 30' of water which later became silted over.

It's really interesting that 45 vertical ft of silt can pile up on top of something in 150 years.

themartorana 11y ago

Makes you wonder what you walk over every day hidden beneath your feet.

pjc50 11y ago
In Europe, that could be anything from Roman ruins to unexploded WW2 bombs. Most suitably large construction digs will turn up something of archaeological interest.
- apaprocki 11y ago
  That's what happened during the dig for our (Bloomberg) new London HQ. A ton of stuff was unearthed and will be featured in an exhibit on the site once the office opens. "'Entire streets' of Roman London uncovered in the City": http://www.bbc.com/news/uk-england-london-22084384 http://www.bbc.com/news/uk-england-london-22084384
uptown 11y ago
Some interesting history about Seattle: http://www.undergroundtour.com/about/history.html http://www.undergroundtour.com/about/history.html
cleaver 11y ago
In Toronto, it would be soldiers from the war of 1812 who were often buried where they fell. http://citiesintime.ca/toronto/story/surf-reveals/ http://citiesintime.ca/toronto/story/surf-reveals/

geon 11y ago

Much less than 150 years. Once the river moved, almost no more silt would be deposited.

dalke 11y ago

Some of that 45 feet is because the ship sank into the mud. Quoting https://en.wikipedia.org/wiki/Arabia_%28steamboat%29 https://en.wikipedia.org/wiki/Arabia_%28steamboat%29 : > The snag ripped open the hull, which rapidly filled with water. The upper decks of the boat stayed above water, and the only casualty was a mule that was tied to sawmill equipment and forgotten. The boat sank so rapidly into the mud that by the next morning, only the smokestacks and pilot house remained visible. Since two decks disappeared overnight, that suggests the boat sank at least 15 feet into the mud. We can assume the water depth was that of the hull and the first deck, but I can only come up with a wild guess that it's between 10' and 30' of water which later became silted over.