Excerpt from The Splendid Book of Engineering
The two halves were built slowly out wards from either side and for six years they were growing - either in the form of steel plates and girders in the making, or in being placed in position, until, in 1930, the connecting link was made in an arch which had a span of feet. The arch rises to a height of 410 feet, and there is always a headway of 170 feet at high water, and considerably more at low tide, thus the biggest steamship can enter without waiting outside for the tide to fall.
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HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LX-9780428501341
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Da: PBShop.store UK, Fairford, GLOS, Regno Unito
HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LX-9780428501341
Quantità: 15 disponibili