City roads and pavements suited to cities of moderate size. . Eighth Avenue, Brooklyn, N. COBBLE-STONE I, 1901, New York City (^Manhattan) had 227 miles of had 300 miles of cobble and defective blocks. 58 BLOCK-STONE PAVEMENTS. Maine and Vermont, and of diabase trap rock from tliePalisades of the Hudson. Pavinof blocks formed of these rocks and laid in theusual manner with sand joints, wear in such a way thattheir tops become rounded and polished, giving a poorfoothold for horses, and forming a surface which collectsand retains filth, and causes noise, and
City roads and pavements suited to cities of moderate size. . Eighth Avenue, Brooklyn, N. COBBLE-STONE I, 1901, New York City (^Manhattan) had 227 miles of had 300 miles of cobble and defective blocks. 58 BLOCK-STONE PAVEMENTS. Maine and Vermont, and of diabase trap rock from tliePalisades of the Hudson. Pavinof blocks formed of these rocks and laid in theusual manner with sand joints, wear in such a way thattheir tops become rounded and polished, giving a poorfoothold for horses, and forming a surface which collectsand retains filth, and causes noise, and is injurious topublic health and comfort: the hardest and finest-grained rocks giving the worst results, so that thecoarser grades of granite have nearly displaced traprock for paving blocks. i^^!±£d. dondCone ret*. Granite povement Broadway, New York, has very heavy traffic and hasbeen repeatedly paved, from Fifty-eighth street to theBattery, five miles, with various forms of granite andof trap blocks; portions of which have needed relayingafter three years use, and all of which have been dirtyand noisy. These conditions are shown to be unnec-essary by the fact that during 1900, this block-stonepavement was re-set and used as the foundation fornoiseless sheet-asphalt, which can be kept clean, andwhich is guaranteed to be in perfect condition duringand at the end of ten years. This was done fromFifty-eighth street to Fourteenth street, two and a halfmiles, (and also on sixty other streets in New York,)during 1900, and has been extended to Canal street, 59 CITY ROADS AND PAVEMENTS.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreets, bookyear1902
