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 vi
... 92 CHAP . IV . DRAINAGE , P. 94 . Main Side Drains 94 Covered Drains 94 Inlets 95 Mitre Drains 96 Cross Drains Outlets Catchwater Drains Side Channels 97 1 97 97 98 CHAP . V. DIFFERENT KINDS OF ROADS , AND MODES vi CONTENTS .
... 92 CHAP . IV . DRAINAGE , P. 94 . Main Side Drains 94 Covered Drains 94 Inlets 95 Mitre Drains 96 Cross Drains Outlets Catchwater Drains Side Channels 97 1 97 97 98 CHAP . V. DIFFERENT KINDS OF ROADS , AND MODES vi CONTENTS .
Página 14
... covered with road metal ; 2dly , Roads across the plains and through the valleys , formed by the tracks of the country carts , and which have only , in a few places , been artificially constructed ; and , 3dly , the mule roads or paths ...
... covered with road metal ; 2dly , Roads across the plains and through the valleys , formed by the tracks of the country carts , and which have only , in a few places , been artificially constructed ; and , 3dly , the mule roads or paths ...
Página 32
... covered the soil ; the transverse sections were often just the reverse of what they ought to be ; the draining was mi- serably defective , and either no protecting fences , or very weak ones , existing along steep hill - sides and ...
... covered the soil ; the transverse sections were often just the reverse of what they ought to be ; the draining was mi- serably defective , and either no protecting fences , or very weak ones , existing along steep hill - sides and ...
Página 50
... covered with water to the depth of several feet in floods . In these cases it may appear , upon accurately calculating and balancing the relative inconvenience and expense of endeavouring to keep a straight line and of taking a ...
... covered with water to the depth of several feet in floods . In these cases it may appear , upon accurately calculating and balancing the relative inconvenience and expense of endeavouring to keep a straight line and of taking a ...
Página 83
... covered with three or four inches of the surface mould , and hay seeds should be sown on it ; by this plan the slopes will soon be covered with grass , which will be a great means of preventing them from slipping . When stones can be ...
... covered with three or four inches of the surface mould , and hay seeds should be sown on it ; by this plan the slopes will soon be covered with grass , which will be a great means of preventing them from slipping . When stones can be ...
Índice
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257 | |
263 | |
272 | |
295 | |
100 | |
118 | |
130 | |
156 | |
167 | |
173 | |
185 | |
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231 | |
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321 | |
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348 | |
360 | |
367 | |
385 | |
433 | |
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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?