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 |
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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 Archway road bottom breadth bridge broken stones built carriage centre coating Commissioners contractor covered cross drains cubic yards depôts depth ditch draught earth Edition eighteen inches embankments engineer expense of drawing Fcap feet wide fences footpath formed Foster's Booth foundation four feet four inches gravel ground half Hartshill Holyhead Road Horizontal horses improvement inches deep inches thick inches wide inclined plane J. C. LOUDON John Kershaw labour laid land length line of road masonry ment metal pavement miles mound necessary nine inches North Wales parish passing paved pavement Pence placed Plate VII posts proper quicksets rails railway Rates of Inclination repair road materials road-making roadway side channels side drains six inches slopes specification spirit level Stowe Hill streets surface surveyor Telford Thomas Baylis three inches trustees turnpike roads valley velocity Vols waggon weight wheels whole
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