Report of Mr Donaldson, agricultural surveyor, on the state of Hyde Park : January, 1849.

  • London (England). Metropolitan Commission of Sewers
Date:
[1849]
Catalogue details

Licence: Public Domain Mark

Credit: Report of Mr Donaldson, agricultural surveyor, on the state of Hyde Park : January, 1849. Source: Wellcome Collection.

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    The drainage contemplated in the foregoing estimates is only such as appears necessary for the removal of water where it appears near the surface. But to drain the Park with, a view to collecting the greatest possible quantity of water into the Serpentine, the cost would probably amount to 500/. more. The quantity of water which might be collected by such means I estimate at one-half of the quantity of rain-water falling on the Park and gardens. The average annual fall of rain for five years past being twenty-five and a half inches, and there being about 600 acres which may apparently be drained into the Serpentine, twelve inches of rain over that extent of ground amounts to 162,000,000 gallons per annum; in addition to which a considerable quantity more may be expected from springs, which have their supply without the Parks on the higher grounds. The quantity of water in the Serpentine is under 90,000,000 gallons ; and were it filled up so that the greatest depth would not exceed six feet, as some parts would not be so deep, I take five feet as the average depth, at which the total quantity of water would not exceed 68,000,000 gallons, so that the water obtainable from drains, and from the springs, would change or renew the water in the Serpentine about three times a year. G. DONALDSON. Sth Jan* 1849. w H 2 t- > 2 C ir. M c ts H H f K C t“ h 2 Pi K ■A H W O Q W H O o O o Ch a It* hrj o a >■ w K o o 2! H w to > g 00 CO • w w § • S w o i rt ♦ ►<! C to > u r/^
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