London Main Drainage: Concrete Foundation For The Northern Outfall Tunnels

London Main Drainage: Concrete foundation for the northern outfall tunnels, 1861. 'The northern outfall sewer is about five miles long. For the first mile it consists of two lines of tunnel inclosed in a raised embankment, and for the remainder of the distance three lines of tunnels, each nine feet in diameter. It crosses, by iron aqueducts, over seven branches of the River Lea...The whole of the upper soil is first excavated, then a solid embankment of concrete is formed. In some places this embankment is as much as twenty feet in depth and one hundred feet in width. It is formed by carrying out a staging upon which several lines of rails are laid. The concrete is made of the best Portland cement...[which] is conveyed in trains of waggons drawn by locomotives to the tip or head of the bank, where it is pitched from the staging to the required level below. The upper surface of this concrete is prepared to a proper shape to receive the inverts of the three tunnels...This extraordinary bank was necessary on account of the treacherous nature of the soil upon which the drains were to be placed. It will be a magnificent work when finished, and one that may almost endure for ever. From "Illustrated London News", 1861. Creator: Unknown. (Photo by The Print Collector/Heritage Images via Getty Images)
London Main Drainage: Concrete foundation for the northern outfall tunnels, 1861. 'The northern outfall sewer is about five miles long. For the first mile it consists of two lines of tunnel inclosed in a raised embankment, and for the remainder of the distance three lines of tunnels, each nine feet in diameter. It crosses, by iron aqueducts, over seven branches of the River Lea...The whole of the upper soil is first excavated, then a solid embankment of concrete is formed. In some places this embankment is as much as twenty feet in depth and one hundred feet in width. It is formed by carrying out a staging upon which several lines of rails are laid. The concrete is made of the best Portland cement...[which] is conveyed in trains of waggons drawn by locomotives to the tip or head of the bank, where it is pitched from the staging to the required level below. The upper surface of this concrete is prepared to a proper shape to receive the inverts of the three tunnels...This extraordinary bank was necessary on account of the treacherous nature of the soil upon which the drains were to be placed. It will be a magnificent work when finished, and one that may almost endure for ever. From "Illustrated London News", 1861. Creator: Unknown. (Photo by The Print Collector/Heritage Images via Getty Images)
London Main Drainage: Concrete Foundation For The Northern Outfall Tunnels
PURCHASE A LICENCE
How can I use this image?
£375.00
GBP
Please note: images depicting historical events may contain themes, or have descriptions, that do not reflect current understanding. They are provided in a historical context. Learn more.

DETAILS

Restrictions:
Contact your local office for all commercial or promotional uses.
Credit:
Heritage Images / Contributor
Editorial #:
1942022968
Collection:
Hulton Archive
Date created:
01 January, 1861
Upload date:
Licence type:
Release info:
Not released. More information
Source:
Hulton Archive
Object name:
3003957
Max file size:
3702 x 1575 px (31.34 x 13.34 cm) - 300 dpi - 4 MB