City roads and pavements suited to cities of moderate size. . <*•, ,««*^ Mr:. feg: ii^i 1 -i ^ 1 ^pr/,. ^ ^H ^C^Sa ?Sf»^I|^^fl ?^^^^^^H|^H^^^^HH M ^^ptte^ ,xp- * ^^^n Sandstone or bluestone road, built m Ulster county, N. Y.,by state engineer E. A. Bond, M. Am. Soc. C. E., in 1900. 142 COBBLE-STONES. Sandstone is only suited for use where better rockcannot be readily obtained, and then only for tlie basecourse where it should be covered by a wearing sur-face of trap or other tough rock. An exception to thismust be made in favor of the blue-stones of Ulstercounty, and the five adjacent count
City roads and pavements suited to cities of moderate size. . <*•, ,««*^ Mr:. feg: ii^i 1 -i ^ 1 ^pr/,. ^ ^H ^C^Sa ?Sf»^I|^^fl ?^^^^^^H|^H^^^^HH M ^^ptte^ ,xp- * ^^^n Sandstone or bluestone road, built m Ulster county, N. Y.,by state engineer E. A. Bond, M. Am. Soc. C. E., in 1900. 142 COBBLE-STONES. Sandstone is only suited for use where better rockcannot be readily obtained, and then only for tlie basecourse where it should be covered by a wearing sur-face of trap or other tough rock. An exception to thismust be made in favor of the blue-stones of Ulstercounty, and the five adjacent counties of eastern NewYork, which are true sandstone and are peculiarlytough. The Ulster county stone binds readily with itsown screenings, and has been used to form the wholematerial of good six-inch macadam roads, which standwell under moderate traffic and are here shown. Various Kinds of Rock.—Broken stone roads canbe well made with various rocks, requiring variedtreatment to suit the conditions. The many rocks andthe details for their successful us
Size: 1305px × 1914px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreets, bookyear1902
