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 62
... thickness . * Whereas , instead of this weak and defective system of road- * See Mr. Telford's first Annual Report on the Holyhead Road , in 1823 , where tables are given showing the result of trials made along the whole line of road ...
... thickness . * Whereas , instead of this weak and defective system of road- * See Mr. Telford's first Annual Report on the Holyhead Road , in 1823 , where tables are given showing the result of trials made along the whole line of road ...
Page 70
... thick coating of broken stones is used ; for six inches of broken stones is sufficient when laid on a pavement , and the pavement may be made with any kind of common stone . By laying the stones in making the bottoming with their ...
... thick coating of broken stones is used ; for six inches of broken stones is sufficient when laid on a pavement , and the pavement may be made with any kind of common stone . By laying the stones in making the bottoming with their ...
Page 72
... thick coating of broken stone , laid on earth , the power required is 65 lbs .; and on a road made with a thick coating of gravel , laid on earth , the power required is 147 lbs . * Thus it appears that the results of actual experiments ...
... thick coating of broken stone , laid on earth , the power required is 65 lbs .; and on a road made with a thick coating of gravel , laid on earth , the power required is 147 lbs . * Thus it appears that the results of actual experiments ...
Page 83
... thickness , it is almost certain to slip . In forming high embankments the earth should be laid on in concave courses , as repre- sented in Plate II . fig . 3. , in order to give firm- ness and stability to the work . It is not at all ...
... thickness , it is almost certain to slip . In forming high embankments the earth should be laid on in concave courses , as repre- sented in Plate II . fig . 3. , in order to give firm- ness and stability to the work . It is not at all ...
Page 86
... thickness , to face them with stone . In the Oxford clay , which covers so great a portion of the midland counties of England , the slopes should not be less in any instance than two to one , and even in some parts of this formation ...
... thickness , to face them with stone . In the Oxford clay , which covers so great a portion of the midland counties of England , the slopes should not be less in any instance than two to one , and even in some parts of this formation ...
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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.