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Dock extension at Birkenhead
Bidston Dock is 1000 ft long and has mean width of 400 ft; work of excavation carried out by constructing temporary dam across entrance and driving piles on which retaining walls are built well down into underlying clay. (See also Engineering v 135 n 3512 May 5 1933 p 498)
Dock extension at Birkenhead
Bidston Dock is 1000 ft long and has mean width of 400 ft; work of excavation carried out by constructing temporary dam across entrance and driving piles on which retaining walls are built well down into underlying clay. (See also Engineering v 135 n 3512 May 5 1933 p 498)
Engineering Index Backfile | 1933
British Library Online Contents | 2006
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