A report to the Survey Committee on street cleansing : presented 22nd January, 1849, / by Thomas Lovick.

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

Licence: Public Domain Mark

Credit: A report to the Survey Committee on street cleansing : presented 22nd January, 1849, / by Thomas Lovick. Source: Wellcome Collection.

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    BY MR LEE’S EXPERIMENTS. Table, No. 2. Once Cleansing. Once a week Cleansing for One Year. Daily Cleansing for One Year. £ s. £ £ Cost of Labour .... 62 10 8,250 „ Water .... 31 5 1,625 Interest on first cost of Hose, say . 236 Wear and Tear of Hose, &c., say . 708 Total .... 5,819 34,914 So as not to under-estimate the cost of apparatus, I have assumed in both Tables that this expense is in direct proportion to the times of cleansing. Taking the cost of labour and water only, for one year’s daily cleansing, the estimates will stand thus—• By Table No. 1 £87,750 By ditto No. 2 29,250 Difference ...... 58,500 Therefore it results that the expense is three times greater in the one instance than in the other, due, I assume, chiefly to the difference of pressure in each case. The removal of the refuse sent into the sewers from the surface, is an im¬ portant element in the calculation. Taking the yearly amount of detritus and refuse removed from the streets at 68,000 loads == 102,000 cube yards, I assume this as the quantity to be removed. Estimating the cost of its removal (by flushing) from the sewers at 6d. per cubic yard (at which it may be removed if done simultaneously with the surface cleansing) the expense would be (102,000 x 6d.) = £2,550. With this addition, the estimates will stand thus— By Table No. 1, £87,750 -f 2,550 = £90,300 By ditto No. 2, £29,250 -f- 2,550 = £31,800 The comparative estimates of street cleansing by sweeping and by water are, therefore, as follow :— STREET CLEANSING DAILY FOR ONE YEAR. By Sweeping, Average. By Water. Difference. £ £ £ By 1st data, and Table No. 1 . ,1 171,804 90,300 81,504