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J . M M O N T G O M E R Y ft C O , I N C E N G I N E E R S DISTRIBUTION FACILITIES CLASS 150 CAST IRON PIPE (Costs as of Deo. 31, 1950) 2" A * ____ 6* 8“ 10" 12" 16* 24" Weight per ft,, lbs. 9,0 15.9 25.5 33.3 51.8 65.6 107.4 201 o 5 Cost per foot .57 1.08 1.61 2.35 3.18 4.03 6.27 11.70 Haul @ $.001/ lb. ,009 .016 .025 .038 .052 .066 ?107 .201 Load @ $.001/ lb. .009 .016 .025 .038 .052 .066 .107 .201 Specials !& .024 .043 .094 .127 .161 .251 't?o0 I Cost on Site .612 1.155 1.724 2.520 3.411 4.323 6.735 12,570 Width of trench 1.5 1.5 1.75 2.00 2.17 2.33 2.67 3.33 Depth of trench 3,25 3.33 3.50 3.67 3.83 4.00 5.33 6.00 C.Y. per foot 0.180 0.185 0.227 0.308 0.345 0.345 0.527 0.740 Cost: Trench & Backfill @ 1,80 c, y. .324 .333 .408 .490 .555 .620 .950 1.333 Laying & Joint © 3-1/2* / dia. .100 0.140 0.210 0.280 0.350 0.420 0.560 0.840 Installation Cos^ .424 .473 .618 .770 .905 1.04 1.51 2,173 TOTAL COSX 1.04- 1.63 2.34 3.29 4.32 5.36 8.25 14.74
