THE FLOW OF WATER IN CONCRETE PIPE. 



59 



Table 8.— For Estimating the Capacity of Well-Made Concrete Pipe Lines or 

 Pressure Tunnels — Continued. 



For instance, 400 second-feet of water, the equivalent of 259 million U. S. gallons per day, will oe conveyed 

 in a 144-inch (12-foot) pipe at a velocity of 3.54 feet per second with a loss of head (grade) of 0.21 feet 

 per thousand feet of pipe. 



Quan- 



Inside diameter in inches and corresponding area, A , in square feet. 



Quan- 

 tity, 





























tity 



103 



108 



114 



120 



12€ 



132 



138 



mil- 



(Q). 



A = 



56.74 



A = 



33.62 



^1 = 70.88 



A = 



rs.54 



X = 



36.59 



A = 



35.03 



A = 



103.9 



lions 

 per 

 day. 



V 



H 



V 



H 



V 



H 



V 



H 



1' 



h 



V 



H 



V 



H 



Sec. ft. 



Feet. 



Fett. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Gals. 



160 



2.82 



0.21 



2.51 



0.15 



2.26 



0.11 



2.04 



0.09 



1.85 



0.07 



1.68 



0.05 



1.54 



0.04 



103 



170 



3.00 



.23 



2.67 



.17 



2.40 



.13 



2.17 



.10 



1.96 



.08 



1.79 



.06 



1.64 



.05 



110 



180 



3.17 



.26 



2.83 



.19 



2.54 



.14 



2.29 



.11 



2.08 



.09 



1.89 



.07 



1.73 



.05 



116 



190 



3.35 



.29 



2.99 



.22 



2.68 



.16 



2.42 



.12 



2.19 



.10 



2.00 



.08 



1.83 



.06 



123 



200 



3.53 



.32 



3.14 



.24 



2.82 



.18 



2.55 



.14 



2.31 



.11 



2.10 



.08 



1.92 



.07 



129 



220 



3.88 



.39 



3.46 



.29 



3.10 



.22 



2.80 



.17 



2.54 



.13 



2.32 



.10 



2.12 



.OS 



142 



240 



4.23 



.46 



3.77 



.34 



3.39 



.26 



3.06 



.20 



2.77 



.15 



2.52 



.12 



2.31 



.09 



155 



260 



4.58 



.54 



4.09 



.40 



3.67 



.30 



3.31 



.23 



3.00 



.18 



2.74 



.14 



2.50 



.11 



168 



280 



4.94 



.63 



4.40 



.47 



3.95 



.35 



3.56 



.27 



3.23 



.21 



2.95 



.16 



2.70 



.13 



181 



300 



5.29 



.72 



4.72 



.54 



4.23 



.40 



3.82 



.31 



3.46 



.24 



3.16 



.19 



2.89 



.15 



194 



320 



5.64 



.82 



5.03 



.61 



4.52 



.46 



4.07 



.35 



3.69 



.27 



3.37 



.21 



3.08 



.17 



207 



340 



5.99 



.93 



5.34 



.69 



4.80 



.52 



4.33 



.40 



3.93 



.31 



3.58 



.24 



3.27 



.19 



220 



360 



6.35 



1.04 



5.66 



.77 



5.08 



.58 



4.58 



.45 



4.16 



.34 



3.79 



.27 



3.46 



.21 



233 



380 



6.70 



1.16 



5.97 



.86 



5.36 



.65 



4.84 



.50 



4.39 



.38 



4.00 



.30 



3.66 



.24 



246 



400 



7.05 



1.29 



6.29 



.95 



5.64 



.72 



5.09 



.55 



4.62 



.42 



4.21 



.33 



3.85 



.26 



253 



420 



7.40 



1.42 



6.60 



1.05 



5.92 



.79 



5.35 



.60 



4.85 



.47 



4.42 



.37 



4.04 



.29 



271 



440 



7.75 



1.56 



6.92 



1.16 



6.21 



.87 



5.60 



.66 



5.08 



.51 



4.63 



.40 



4.24 



.32 



284 



460 



8.11 



1.70 



7.23 



1.26 



6.49 



.95 



5.86 



.73 



5.31 



.56 



4.84 



.44 



4.43 



.35 



297 



480 



8.46 



1.86 



7.54 



1.37 



6.77 



1.03 



6.11 



.79 



5.54 



.61 



5.05 



.48 



4.62 



.38 



310 



500 



8.81 



2.01 



7.86 



1.49 



7.05 



1.12 



6.37 



.86 



5.77 



.66 



5.26 



.52 



4.81 



.41 



323 



550 



9.69 



2.43 



8.64 



1.80 



7.76 



1.36 



7.00 



1.04 



6.35 



.80 



5.79 



.63 



5.29 



.50 



355 



600 



10.60 



2.91 



9.43 



2.15 



8.46 



1.61 



7.64 



1.23 



6.93 



.96 



6.31 



.75 



5.78 



.59 



388 



650 



11.50 



3.36 



10.20 



2.51 



9.16 



1.90 



8.28 



1.45 



7.51 



1.12 



6.84 



.88 



6.26 



.70 



420 



700 



12.30 



3.92 



11.00 



2.92 



9.88 



2.20 



8.91 



1.68 



8.08 



1.30 



7.37 



1.02 



6.74 



.81 



452 



750 



13.20 



4.51 



11.80 



3.36 



10.60 



2.53 



9.55 



1.93 



8.66 



1.49 



7.89 



1.17 



7.22 



.92 



485 



800 



14.10 



5.15 



12.60 



3.83 



11.30 



2.88 



10.20 



2.20 



9.24 



1.70 



8.42 



1.33 



7.70 



1.05 



517 



850 



15.00 



5.83 



13.40 



4.32 



12.00 



3.24 



10.80 



2.47 



9.82 



1.92 



8.94 



1.50 



8.18 



1.19 



549 



900 



15.90 



6.55 



14.20 



4.87 



12.70 



3.63 



11.50 



2.80 



10.40 



2.15 



9.47 



1.68 



8.66 



1.33 



582 



950 



16.80 



7.23 



14.90 



5.35 



13.40 



4.04 



12.10 



3.10 



11.00 



2.41 



10.00 



1.88 



9.14 



1.48 



614 



1,000 



17.60 



8.02 



15.70 



5.95 



14.10 



4.48 



12.70 



3.41 



11.50 



3.63 



10.50 



2.07 



9.69 



1.64 



646 



1' 



14 



1, 



56 



168 



1 



30 



1! 



)2 



2< 



M 



2 



16 



200 



A= 



L13.1 



A= 



132.7 



^1 = 153.94 



A = \ 



76.71 



A = 



201.1 



A = . 



227.0 



A = 



254.5 



129 



V 



H 



V 



H 



V 



II 



V 



H 



V 



H 



V 



E 



V 



H 



1.77 



0.05 



1.51 



0.02 



1.30 



0.02 



1.13 



0.02 



0.99 



0.01 



0.88 



0.01 



0.79 



0.01 



250 



2.21 



.08 



1.88 



.05 



1.62 



.04 



1.41 



.03 



1.24 



.02 



1.10 



.01 



.98 



.01 



162 



300 



2.65 



.12 



2.26 



.08 



1.95 



.05 



1.70 



.04 



1.49 



.03 



1.32 



.02 



1.18 



.01 



194 



350 



3.09 



.16 



2.64 



.11 



2.27 



.07 



1.98 



.05 



1.74 



.04 



1.54 



.03 



1.38 



.02 



226 



400 



3.54 



.21 



3.01 



.14 



2.60 



.09 



2.26 



.06 



1.99 



.05 



1.76 



.03 



1.57 



.02 



259 



450 



3.98 



.27 



3.39 



.17 



2.92 



.12 



2.55 



.08 



2.24 



.06 



1.98 



.04 



1.77 



.03 



291 



500 



4.42 



.33 



3.77 



.21 



3.25 



.15 



2.83 



.10 



2.49 



.07 



2.20 



.05 



1.97 



.04 



323 



550 



4.85 



.40 



4.15 



.26 



3.57 



.18 



3.11 



.12 



2.74 



.09 



2.42 



.07 



2.16 



.05 



355 



600 



5.31 



.47 



4.52 



.31 



3.90 



.21 



3.40 



.15 



2.98 



.10 



2.64 



.08 



2.36 



.06 



388 



650 



5.75 



.56 



4.90 



.37 



4.22 



.25 



3.68 



.17 



3.23 



.12 



2.86 



.09 



2.55 



.07 



420 



700 



6.19 



.64 



5.28 



.42 



4. 55 



.29 



3.96 



.20 



3.48 



.14 



3.08 



.10 



2.75 



.08 



452 



750 



6.63 



.74 



5.65 



.48 



4.87 



.33 



4.24 



.23 



3.73 



.16 



3.30 



.12 



2.95 



.09 



485 



800 



7.07 



.84 



6.03 



.55 



5.20 



.38 



4.53 



.26 



3.98 



.19 



3.52 



.14 



3.14 



.10 



517 



850 



7.52 



.95 



6.41 



.63 



5.52 



.42 



4.81 



.29 



4.23 



.21 



3.74 



.15 



3.34 



.11 



549 



900 



7.96 



1.07 



6.78 



.70 



5.85 



.48 



5.09 



.33 



4.48 



.24 



3.96 



.17 



3.54 



.12 



582 



950 



8.40 



1.19 



7.16 



.78 



6.17 



.53 



5.38 



.37 



4.72 



.26 



4.18 



.19 



3.73 



.14 



614 



1,000 



8.84 



1.32 



7.54 



.87 



6.50 



.59 



5.66 



.41 



4.97 



.29 



4.41 



.21 



3.93 



.16 



646 



1,050 



9.28 



1.45 



7.91 



.95 



6.82 



.65 



5.94 



.45 



5.23 



.32 



4.63 



.23 



4.12 



.17 



678 



1,100 



9.73 



1.59 



8.29 



1.05 



7.15 



.71 



6.22 



.49 



5.47 



.35 



4.85 



.26 



4.32 



.19 



711 



1,150 



10.20 



1.75 



8.67 



1.14 



7.47 



.78 



6.51 



.56 



5.72 



.38 



5.07 



.28 



4.52 



.21 



743 



1,200 



10.60 



1.89 



9.04 



1.24 



7.80 



.85 



6.79 



.59 



5.97 



.42 



5.29 



.30 



4.71 



.23 



776 



1,250 



11.10 



2.07 



9.42 



1.35 



8.12 



.92 



7.07 



.64 



6.22 



.45 



5.51 



.33 



4.92 



.24 



807 



1,300 



11.50 



2.23 



9.80 



1.46 



8.45 



.99 



7.36 



.69 



6.47 



.49 



5.73 



.36 



5.11 



.26 



840 



1,400 



12.40 



2.59 



10.60 



1.71 



9.09 



1.15 



7.92 



.80 



6.96 



.57 



6.17 



.41 



5.50 



.31 



905 



1,500 



13.30 



2.98 



11.30 



1.94 



9.74 



1.32 



8.49 



.92 



7.46 



.65 



6.61 



.48 



5.90 



.35 



969 



1,600 



14.20 



3.39 



12.10 



2.23 



10.40 



1.50 



9.05 



1.04 



7.96 



.74 



7.05 



.54 



6.29 



.40 



1,403 



1,700 



15.00 



3.79 



12.80 



2.50 



11.00 



1.68 



9.62 



1.18 



8.46 



.84 



7.49 



.61 



6.68 



.45 



1,098 



1,800 



15.90 



4.26 



13.60 



2.82 



11.70 



1.90 



10.20 



1.32 



8.95 



.94 



7.93 



.68 



7.07 



.51 



1,163 



1,900 



16.80 



4.75 



14.30 



3.15 



12.30 



2.12 



10.80 



1.48 



9.48 



1.05 



8.37 



.76 



7.47 



.56 



1,228 



2,000 



17.70 



5.27 



15.10 



3.48 



13.00 



2.35 



11.30 



1.62 



9.95 



1.16 



8.81 



.85 



7.86 



.63 



1,922 



