File:A manual of the principles and practice of road-making- comprising the location, consruction, and improvement of roads (common, macadam, paved, plank, etc.) and rail-roads (1853) (14572514960).jpg

Identifier: manualofprincipl00gill (find matches)
Title: A manual of the principles and practice of road-making: comprising the location, consruction, and improvement of roads (common, macadam, paved, plank, etc.) and rail-roads
Year: 1853 (1850s)
Authors: Gillespie, W. M. (William Mitchell), 1816-1868
Subjects: Roads Railroads
Publisher: New York, A. S. Barnes & Co.
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Northeastern University, Snell Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ve, who should form their own associations,make a common bargain, and divide the pay. In worknot susceptible of definite calculation as to quantity orquality, and in such only, day-labor may be resorted tounder a continual and vigilant superintendence. In such a system as has been here sketched, the money-tax would be found to be not only more equitable than thepersonal-labor system, but even less burdensome. Noneof it would be wasted ; and those who had skill andstrength for road-work would receive back, in wages,more than their share of it; those who were skilful inother work might remain at that which was most profitableto them, and pay only their simple share of the road-tax,not double, as when they now commute ; and the onlylosers by the change would be the indolent, who wereuseless under the old system, but under this, would beobliged to contribute their share ; while great gain inevery way would ensue to the community at large. Thesubject urgently demands legislative attention.
Text Appearing After Image:
APPENDIX. (Referred to on Pago 117.) CALCULATION OF EXCAVATION AND EMBANKMENT. 1 2 3 4 5 6 7 8 1 9 10 Height rta- ofground Rise or fall Height ofgrade Cut, Fill. End Excavation. Embankment tion. datumline. distance. above da-tum. + — Aieas. Cubic feet. Cubic feet. 1 46.0 46.0 0 0 2 561 59.2 — 4.8 41.2 18 1386 388,773 3 858 53.9 — 7.3 33.9 20 1600 1,280,994 4 825 26.9 — 7.0 26.9 0 0 0 660,000 5 620 0.9 — 7.0 19.9 19 1672 685,520 6 825 4.9 — 7.0 12.9 8 528 907,500 7 330 10.0 — 2.9 10. 0 0 87,120 4219 36.0 2,329,767 1,680,140 In the above tabular view, the first seven columns are transferredfrom page 116. The remaining columns of areas and cubical con-tents are filled up by the following calculations, assuming at 50 feetthe width of road-bed ; w^iich will be the bottom of a cutting, orthe top of an embankment, at a height just sufficient to equalize theelevations and depressions of the final transverse profile of the sur-face of the road. The side-slopes of the excavations

Note About Images