Report on the efficiency and working conditions of the tubes laid down in open ditches since the 1st of January, 1849 / By John Grant, Assistant Surveyor. April 30th, 1849.

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

Licence: Public Domain Mark

Credit: Report on the efficiency and working conditions of the tubes laid down in open ditches since the 1st of January, 1849 / By John Grant, Assistant Surveyor. April 30th, 1849. Source: Wellcome Collection.

    1/6
    wm | v*. No. 40.] jRetropolttan e Vo ers. REPORT As to the Efficiency and Working Condition of the Tubes laid in open Ditches in the Surrey and Kent District;— by John Grant, Assistant Surveyor. Ordered by the Trial Works Committee, April 16, 1849, 11 That the new Assistant Surveyor, when appointed by the Court, do u examine the actual efficiency and present working condition of u the Tubes laid down in Ditches and Open Sewers, by authority u of the Court, since the 1st January, 1849, and do report thereon “ to this Committee.” In compliance with the above order I inspected all the sewers referred to. They extend over the district lying between Rotherhithe and Lambeth, and between Camberwell, Kennington, and the Thames. The total length is about a mile and a half in twenty separate lengths, and the cost of them has been 1,607/. 12s. There are two other sewers now in progress, but as they are not completed their efficiency cannot be reported on. The greater part of them are of Portland cement, with stoneware tubes at the junctions. In every case the cement tubes were very hard, and serving well the purpose for which they were intended. The appended Table gives the particulars of each sewer. The chief points ex¬ amined were as to how far the tubes had served the purpose of carrying off the sewage flowing down the open ditches for which they were substitutes, and the extent to which they had abated the nuisances arising from such a great area of foul matter. In every case I found that the tubes were large enough to carry off all the sewage passing into them, and that in no instance (according to the information received from the Clerks of the Works), had any damage arisen from their compara¬ tively small area, either to the tubes or the adjoining property. ( 35 )