A Treatise on Roads: Wherein the Principles on which Roads Should be Made are Explained and Illustrated, by the Plans, Specifications, and Contracts Made Use of by Thomas Telford, Esq. on the Holyhead Road |
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Page 40
... described on the map , with the various roads communicating with them ; and the existing bridges over the streams or rivers which are immediately below the pro- posed point of crossing them should be carefully measured , and the span ...
... described on the map , with the various roads communicating with them ; and the existing bridges over the streams or rivers which are immediately below the pro- posed point of crossing them should be carefully measured , and the span ...
Page 68
... described by Pro- fessor Leslie , and from the terms of the defi- nition of hardness ; for however strong the crust of materials may be which is formed over such a subsoil , it will not be capable of opposing a perfect resistance to a ...
... described by Pro- fessor Leslie , and from the terms of the defi- nition of hardness ; for however strong the crust of materials may be which is formed over such a subsoil , it will not be capable of opposing a perfect resistance to a ...
Page 78
... high winds . * * The proper angle for fixing the line of direction of traces , in which the power for drawing a carriage should be applied , is described in note F. 79 CHAP . III . FORMING A ROAD . In 78 A TREATISE ON ROADS .
... high winds . * * The proper angle for fixing the line of direction of traces , in which the power for drawing a carriage should be applied , is described in note F. 79 CHAP . III . FORMING A ROAD . In 78 A TREATISE ON ROADS .
Page 86
... described , where the slopes are as much as four to one . If the road is across such strata , or at right angles to the line of bear- ing , then the slopes may be made one and a half to one , as represented in Plate II . fig . 7 .; but ...
... described , where the slopes are as much as four to one . If the road is across such strata , or at right angles to the line of bear- ing , then the slopes may be made one and a half to one , as represented in Plate II . fig . 7 .; but ...
Page 87
... these will be more particularly described in a subsequent chapter . : The following directions for forming roads are taken from specifications according to which parts of the G 4 FORMING A ROAD . 87 Limestone Strata Footpaths.
... these will be more particularly described in a subsequent chapter . : The following directions for forming roads are taken from specifications according to which parts of the G 4 FORMING A ROAD . 87 Limestone Strata Footpaths.
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Common terms and phrases
Allesley arch Archway road bottom breadth breast walls brick bridge broken stones built carriage centre coating Commissioners constructed contractor cross drains depôts depth district draught earth eighteen inches embankments engineer feet wide fences foot footpath formed Foster's Booth foundation four feet four inches gravel ground half Hartshill hill Holyhead Road horizontal horses improvement inches deep inches thick inches wide inclined plane J. C. LOUDON John Kershaw labour laid length line of road London masonry Menai Strait ment miles mortar necessary nine inches North Wales parish passing paved pavement pence placed Plate VII proper quicksets rails railway Rates of Inclination repair road materials road-making roadway side channels six inches sixteen inches slopes specification spirit level Stowe Hill streets surface surveyor Telford Thomas Baylis three feet three inches trustees turnpike roads valley velocity waggon weight wheels whole
Popular passages
Page 23 - They will here meet with rutts which I actually measured four feet deep, and floating with mud only from a wet summer; what therefore must it be after a winter?
Page 10 - All these cities were connected with each other, and with the capital, by the public highways, which, issuing from the Forum of Rome, traversed Italy, pervaded the provinces, and were terminated only by the frontiers of the empire. If we carefully trace the distance from the wall of Antoninus to Rome, and from thence to Jerusalem, it will be found that the great chain of communication, from the north-west to the south-east point of the empire, was drawn out to the length of four thousand and eighty...
Page 23 - A more dreadful road cannot be imagined. I was obliged to hire two men at one place to support my chaise from overturning. Let me persuade all travellers to avoid this terrible country, which must either dislocate their bones with broken pavements, or bury them in muddy sand.
Page 10 - The public roads were accurately divided by milestones, and ran in a direct line from one city to another, with very little respect for the obstacles either of nature or private property. Mountains were perforated, and bold arches thrown over the broadest and most rapid streams.
Page 291 - At many turnpikes, it has been said, the money levied is more than double of what is necessary for executing, in the completest manner, the work, which is often executed in a very slovenly manner, and sometimes not executed at all.