File:Image from page 113 of "City roads and pavements suited to cities of moderate size." (1902).jpg

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COURT SQUARE, SPRINGFIELD, MASS. 1900 Rock-asphalt laid in front of City Hall in 1897 and repaired in 1898.

Identifier: cityroadspavemen00juds Title: City roads and pavements suited to cities of moderate size. Year: 1902 (1900s) Authors: Judson, William Pierson, 1849-1925 Subjects: Streets Pavements Roads Publisher: New York : The Engineering news publishing company Contributing Library: The Library of Congress Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image: ber of companies have been,and some are still, before the public as competitivebuilders of asphalt pavements. To do this successfullyand with certainty requires skill and knowledge whichcan only be acquired by long and costly experience.A great city may well employ experts who can specifydetails and test materials and direct operations as hasbeen and is done in Washington and New York, butcities of moderate size desiring to build a few blocks, ora few miles, of asphalt pavement, should not attempt todirect the details of construction and should not con-sider other offers than those made by some of the fewgreat firms having the widest experience and possessing 107 CITY ROADS AND PAVEMENTS. the necessary exact knowledge of all of the many essen-tial details and having the best established reputations,who can safely assume all responsibility for materialsand methods and can give an effective guarantee atreasonable cost, for a period of ten years; five yearsnot covering the critical time.

Text Appearing After Image: COURT SQUARE, SPRINGFIELD, MASS. i>^oo Rock-asphalt laid in front of City Hall in 1897 and repaired in 1898. Soui^ccs 0/ Supply.—Th^YQ are many sources of sup-ply of different asphalts, each varying from the rest andeach requiring its own treatment. Formerly that fromLake Trinidad was assumed to excel all others forforming the American asphalt mixture; but large de-posits were discovered in 1899 in northern Venezuela inaddition to Bermudez Lake in the Department of Sucre,which alone is eight times the size of Lake Trinidad.There is also in Venezuela another newly found depositof asphalt near the Gulf of Pavia in the Orinoco delta,and another in the state of Jujuy in Argentina. 108 ARTI Fin AL SHEET-ASri IAI .T. The American supplies of Kentucky sand-rock andof California sand-asphalt are very large and are freefrom international complications. MATERIALS AND METHODS; AMERICAN ARTIFICIAL SIIELT- ASPHALT PAVEMENT. Asphalt.—The full details of the materials and of themethods of con

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