The book of bridges, by the author of 'Wonders of the sea shore'.

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1850
 

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Seite 9 - Though the sides of this bridge are provided in some parts with a parapet of fixed rocks, yet few men have resolution to walk to them, and look over into the abyss. You involuntarily fall on your hands and feet, creep to the parapet, and peep over it. Looking down from this height about a minute gave me a violent head-ache.
Seite 9 - Ridge on the other, at the distance each of them of about five miles. This bridge is in the county of Rockbridge, to which it has given name, and affords a public and commodious passage over a valley which cannot be crossed elsewhere for a considerable distance.
Seite 177 - ... feet from the fastenings in the rock. The first three-masted vessel passed under the bridge in 1826. Her topmasts were nearly as high as a frigate; but they cleared twelve feet and a half below the centre of the road-way. The suspending power of the chains was calculated at 2,016 tons; the total weight of each chain, 121 tons.
Seite 9 - ... feet. A part of this thickness is constituted by a coat of earth, which gives growth to many large trees. The residue, with the hill on both sides, is one solid rock of limestone. The arch approaches the Semielliptical form...
Seite 25 - The reader will easily conceive," says M. Bouguer, "that the mere weight of this kind of basket machine, and much more the weight of a man passing over, must cause it to make a prodigious bend ; and if it be considered that the passenger, when he is in the midst of his course, especially if there be much wind, is exposed to wide swingings from side to side, to pass such a bridge, which...
Seite 22 - It is about two hundred and fifty feet long, and just wide enough to admit a carriage. It is upon the principle of suspension, and constructed where the banks of the river are so bold. as to furnish natural piers. The figure of the bridge is nearly that of an inverted arch. Formed of elastic materials, it rocks a good deal when passengers go over it. The infantry, however, passed upon the present occasion without the smallest difficulty. The cavalry also passed without any accident by going a few...
Seite 22 - ... were entertained of the possibility of getting it over. The general had placed himself on an eminence to see his army file to the opposite side of the river. A consultation was held upon the practicability of passing the guns. Captain Miller volunteered to conduct the first gun. The limber was taken off, and drag-ropes were fastened to the washers to prevent the gun from descending too rapidly. The trail, carried foremost, was held up by two gunners, but, notwithstanding every precaution, the...
Seite 8 - It is on the ascent of a hill, which seems to have been cloven through its length by some great convulsion.
Seite 177 - ... dangers. The bridge is at a point near the town of Bangor, from near which its appearance is strikingly grand. It is built partly of stone and partly of iron, on the suspension principle, and consists of seven stone arches, exceeding in magnitude every work of the kind in the world. They connect the land with the two main piers, which rise...
Seite 123 - The rudeness of this bridge will show the small progress that the arts have made in Mysore. Square pillars of granite are cut from the rock, of a sufficient height to rise above the water at the highest floods. These are placed upright in rows, as long as the intended width of the bridge, and distant about ten feet from each other. They are secured at the bottom by being let into the solid rock ; and their tops being cut to a level, a long stone is laid upon each row. Above these longitudinal stones...

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