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 RoadLongman, Orme, Brown, Green, and Longmans, 1838 - 465 páginas |
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Página 7
... wide , with two side ways , each eight feet wide , separated from the middle way by two raised paths of two feet each . ” * The funds for making roads were so well secured and so considerable , that the Romans were not * See Tredgold on ...
... wide , with two side ways , each eight feet wide , separated from the middle way by two raised paths of two feet each . ” * The funds for making roads were so well secured and so considerable , that the Romans were not * See Tredgold on ...
Página 75
... or nine inches long , and six or eight inches wide ; it is lessened very much indeed on the sur- face that bears on the earth . " broken stones of great hardness , they should still be PRINCIPLES OF ROAD - MAKING . 75.
... or nine inches long , and six or eight inches wide ; it is lessened very much indeed on the sur- face that bears on the earth . " broken stones of great hardness , they should still be PRINCIPLES OF ROAD - MAKING . 75.
Página 92
... wide at top , four feet deep , and eighteen inches wide at bottom ; the peat dug out of these drains is to be spread over the surface of the roadway in form of a ridge , taking care to previously cover all the very soft and swampy ...
... wide at top , four feet deep , and eighteen inches wide at bottom ; the peat dug out of these drains is to be spread over the surface of the roadway in form of a ridge , taking care to previously cover all the very soft and swampy ...
Página 94
... wide at bottom , and five feet wide at top . In crossing marshy land they should be made sufficiently deep and wide to obtain earth to raise the bed of the road , from side to side , three feet higher than the natural surface , in order ...
... wide at bottom , and five feet wide at top . In crossing marshy land they should be made sufficiently deep and wide to obtain earth to raise the bed of the road , from side to side , three feet higher than the natural surface , in order ...
Página 96
... wide at bottom , twelve inches wide at top , and ten inches deep . These drains should be placed at about sixty yards from each other , or about thirty in the mile ; but if the soil be wet , this number should be considerably increased ...
... wide at bottom , twelve inches wide at top , and ten inches deep . These drains should be placed at about sixty yards from each other , or about thirty in the mile ; but if the soil be wet , this number should be considerably increased ...
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295 | |
100 | |
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156 | |
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451 | |
458 | |
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Términos y frases comunes
Allesley arch Archway Road axles bottom breadth brick bridge broken stones built carriage centre coach coating commissioners constructed contract contractor Coventry cross drains DAVIES GILBERT depôts depth draught dynamometer earth eighteen inches elasticity embankments engineer expense experiments feet wide fences foot footpath fore wheels formed foundation four inches friction gravel ground half hard Hartshill height hill hind wheels Holyhead Road horizontal horses improvement inches deep inches thick inches wide instrument John Kershaw John Macneill labour laid length line of road manner masonry ment miles mortar mound necessary nine inches paved pavement placed Plate VII proper quicksets rails rates of inclination repair road-making roadway ruts side channels side springs six inches slopes specification spirit level springs square streets surface surveyor Telford theodolite Thomas Baylis three feet three inches trustees turnpike roads turnpike trusts upper velocity waggon whole wing walls
Pasajes populares
Página 20 - 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?