. Railroad structures and estimates . ghpressure mains and charged by meter. The standpipes in general use are 6, 8, 10, and 12 in., weigh-ing from 2500 to 5000 lb. each. APPR0XI\L\TE COST WITHOUT SUPPLY PIPE LINE. Wood chamber. Concrete chamber. 6-inch standpipe complete in place 8-inch standpipe complete in place 10-inch standpipe complete in place 12-inch standpipe complete in place S300 to S400450 to 550500 to 600550 to 650 S400 to S450550 to 650600 to 700650 to 750 The approximate discharge in U. S. gallons per minute fromwater tank to standpipe for various supply pipes 1000 feet long isg
. Railroad structures and estimates . ghpressure mains and charged by meter. The standpipes in general use are 6, 8, 10, and 12 in., weigh-ing from 2500 to 5000 lb. each. APPR0XI\L\TE COST WITHOUT SUPPLY PIPE LINE. Wood chamber. Concrete chamber. 6-inch standpipe complete in place 8-inch standpipe complete in place 10-inch standpipe complete in place 12-inch standpipe complete in place S300 to S400450 to 550500 to 600550 to 650 S400 to S450550 to 650600 to 700650 to 750 The approximate discharge in U. S. gallons per minute fromwater tank to standpipe for various supply pipes 1000 feet long isgiven in Table 115, page 437, for two different types of standpipes. For example, it is desired to ascertain what will be the dischargefrom a water tank through a 10-inch supply pipe to the standpipewith 14 ft. of water in the tank. For the 10-inch rigid standpipethe table (115) gives 1700 and for the telescopic 1550 gallons perminute. If the pipe were 12 inches the discharge would be 2600and 2500 gallons respectively. STANDPIPES. 463. TELESCOPICSTANDPIPE Sewer Pipe C. P. R. Telescopic Standpipe. APPROXIMATE ESTIMATE FOR SUPPLY PIPE AND STANDPIPE.—SUPPLY PIPE 140 FEET LONG. Supply pipe: Excavation for supply pipe, 110 cubic yards at 75^.C. I. pipe, 10-inch supply, tons at Lead for joints, 168 pounds at 8(Z^ Laying pipe, 140 lineal feet at 17^. . .Connections $ 184 10 13 44 23 80 10 00 Standpipe: 1 10-inch standpipe erected $420. 00 Excavation for pit, 10 cubic yards at Tbi , Concrete pit Drain 5 feet deep: Excavation 164 cubic yards at 75?f $ 210 lineal feet 4-inch tile pipe laid, at \Q^ 33. 60 BeU trap bends and connections 13. 40 $ $ $ $ Supervision and contingencies 10 per cent Total $ 464 STANDPIPES. 974 98 89
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