The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 449
of clay and gravel mixed is to be formed at the back ofthe walls and counterforts 5 feet thick, to be brought up during theprogress of building the walls from the ground to 3 feet above highwater-mark of a s|)ring tide, this puddle is to be backed up withearth, and laid in layers as before… … Speci^cation of the coffer dam for (he entrance loch; to he 1^1 feet long,and its form as reprtstnttd in the drawings. The principal dam to be made of two rows of piles at a distance of6 feet apart, of Memel or Dantzic timber 12 inches square, also anouter row of piles of the same timber 12 inches…
Architecture · Civil engineering · Science
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