Concrete Water Tank

[NW Mailing List]

Well in swamps or even the desert as they had to do for every skyscraper in 
 Dubai you drive piles down to the bedrock! LOTS of them! LOL Then after 
you have  driven all of them they get all cut off to the same height. In most 
cases a  monolith pour of concrete is poured on top of it then the footings 
are  poured.
Ray Russell Sr.
 
 
In a message dated 2/7/2015 9:31:26 A.M. Eastern Standard Time,  
nw-mailing-list at nwhs.org writes:

 
This discussion can be carried to another level.


A 200,000 gal water tank holds about 800 tons of water (200,000  gals X 8 
lb gal = 800 tons.)  Spread that weight out over a dozen  footers, and each 
footer must support (only) 66 tons of water + some  additional load for the 
structure.


That is not a lot of weight for a footer to carry, but I am wondering how  
footings were handled in places like the Dismal Swamp?  How deeply were  
they carried down, and how does one excavate to bed rock in a swamp...?


A 200,000 gal tank could fill twenty very old 10,000 gal tenders, ten  
modern 20,000 gal tenders, or 6.6  30,000 gal whopper tenders.  This  makes me 
wonder about the re-fill rate.  Anyone know the hourly capacity  of the 
steam, distillate engine and electric motor pumps which were, over the  years, 
used to re-fill the N&W tanks?


Some railroads had a Superintendent of Water Service.  Who, on the  N&W, 
wore the King-Waterboy hat?  And did this function (water  supply) fall under 
the Motive Power or the MW Department?


-- abram burnett


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