A treatise on highway construction . l be well filled with clean, coarse sand, orso much sand as may be directed by the Street Commissioner, whichshall be washed in with water from a hose having a rose attachedto the nozzle, and then the whole shall be rerolled to the satisfac-tion of the Street Commissioner. A sprinkling-cart shall not beused unless it is impossible to make a connection with a fire-plug,and then only with the consent of the Street Commissioner. Awater license and a permit from the Water Commissioner mustfirst be obtained before a fire-plug can be opened. Gravel,—The macadam c
A treatise on highway construction . l be well filled with clean, coarse sand, orso much sand as may be directed by the Street Commissioner, whichshall be washed in with water from a hose having a rose attachedto the nozzle, and then the whole shall be rerolled to the satisfac-tion of the Street Commissioner. A sprinkling-cart shall not beused unless it is impossible to make a connection with a fire-plug,and then only with the consent of the Street Commissioner. Awater license and a permit from the Water Commissioner mustfirst be obtained before a fire-plug can be opened. Gravel,—The macadam course with binding material havingbeen finished, there shall be placed thereon a layer of good cleangravel, free from clay, animal, or vegetable matter, and containingnot more than fifteen (15) per cent of loam or sand, nor shall thelargest pebbles exceed one inch in diameter; to be well wetted downor slushed with water and thoroughly rolled to a perfect surface. :346 HIGHWAY CONSTKUCTIOIT. TYPE-SECTIONS OF BROKEN-STONE •Fig. 25. COUNTRY ROAD, SIOe-DITCH FILLED WITH COBBLE.
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