THE FLOW OF WATER IN CONCRETE PIPE. 



23 



Table 3. — Elements of experiments for the determination of friction losses in concrete 

 pipes, running full; with retardation coefficients for various formulas — Continued. 



1 



2 



u 



3 



4 



5 



6 



u 



ft 



7 



8 



ft 



Coefficients of retardation. 





9 



10 



11 



12 



13 



14 



S3 



Pi . 



o 



a 





„,'0 





T3 CD 















a 



PI 



ag 



t 



03 



Name and description of 

 pipe. 



03 rl 



"1 



gft 





03 



>> 



ari 

 3 § 



N 





4 



03 



6 



ft 



M 53 



o 



2 

 pi 



h-t 





s 



COi-H 



o 



o 



CS 



A 



O 



a 2 

 ■0 



O 



"3 



M 



'53 









<z 





Q 



V 



H 



c s 



C 



C w 



Cm 



11 



f 









fms. 





cu.ft. 



feet. 



feet. 















21 



S47 



4 



23.5 



"A v lateral, Kamloops, 



1.73 



.63 



.103 



.268 



88.4 



104.9 



.94 



.0134.<K::;. 





1916 



2 





B. C, Canada; nomi- 



2.32 



.84 



.230 



.241 



78.8 



91.2 



.81 



.0154 



.0416 







3 





nally a 24-inch jointed 



2.65 



.97 



.296 



.243 



79.2 



91.2 



.81 



.0155 



.0408 







1 





cement pipe, but ob- 

 structed by debris. 



3.63 



1.32 



.495 



.257 



84.0 



94.3 



.82 



.0150 



.0367 



22 



S61 



1 



30.0 



Temescal Water Co., Co- 



3.25 



.67 



.094 



.261 



87.3 



102.1 



1.03 



. 0142 . 0339 





1916 



8 





rona, Calif.; inverted 



6.38 



1.31 



.384 



.253 



84.5 



93.6 



.92 



. 0156'. 0359 







7 





siphon, jointed concrete 



8.23 



1.69 



.635 



.254 



84.9 



92.0 



.90 



.0156|.0357 







6 





pipe, straight in align- 



8.28 



1.70 



.644 



.253 



85.0 



91.8 



.90 



.0156 ! .0357 







5 





ment, sag in profile; laid 



8.38 



1.72 



.663 



.253 



84.3 



91.5 



.90 



.0157 



.0360 







4 





1911. 



8.38 



1.72 



.634 



.258 



86.4 



93.7 



.92 



.0154 



.0344 







3 







8.52 



1.75 



.700 



.250 



83.7 



90.4 



.88 



.0158 



.0367 







2 







9.11 



1.87 



.806 



.249 



83.5 



89.5 



.87 



.0159 



.0370 



23 



S34 



3 



30.0 



T>i siphon, Umatilla pro- 



5.10 



1.04 



.150 



.320,108.3 



123.1 



1.23 



.0123 



.0224 





1915 



2 





ject, IT. S. Reclamation 



8.74 



1.78 



.405 



.334! 112.0 



123.3 



1.22 



.0125 



.0206 







1 





Service, Oreg.; jointed 



12.00 



2.45 



.745 



. 339 113. 



122.1 



1.19 



.0125 



.0200 











concrete pipe. 





















24a 



N3 



2 



30.0 



Di siphon, same as No. 23 



16.62 



3.39 



1. 050 



.395 



132.0 



140.4 



1.37 



.0108 



.0147 





1911 



2 





above; tests made when 



17.04 



3.47 



1.050 



.404 



135.0 



143.7 



1.40 



.0106 



.0140 







1 





pipe was new and clean. 



17.70 



3.61 



1.070 



.416 



140.0 



148.0 



1.44 



. 0103 



.0132 



25a 



N4 

 1912 



1 



30.0 



B-3 siphon, Umatilla pro- 

 ject, U. S. Reclamation 

 Service, Oreg. 



13.40 



2.73 



.860 



.351 



118.0 



126.0 



1.23 



.0119 



.0186 



26 



S51 



6 



30.5 



Prosser pressure pipe, 



24.80 



4.88 



2.230 



.386, 129. 4 



133.0 



1.28 



.0111 



.0154 





1916 



5 





Sunny side project, U. S. 



25.60 



5.04 



2.653 



.366 122. 6 



125.1 



1.20 



. 01-16 



.0171 







1 





Reclamation Service, 



26.20 



5.15 



2.644 



.375125.6 



128.1 



1.23 



.0114 



.0163 







4 





Wash., jointed concrete 



26.60 



5.24 



2.869 



.3651122.4 



124.8 



1.19 



.0116 



.0171 







7 





pipe reinforced, on con- 



28.80 



5.67 



3.805 



.343115.2 



115.9 



1.10 



.0123 



.0194 







3 





tinuous down grade, 



28.90 



5.68 



3.757 



.346116.2 



116.9 



1.11 



.0121 



.0191 







2 





straight and clean; laid 

 1911. 



29.40 



5.78 



3.727 



.354118.7 



119.5 



1.14 



.0119 



.0183 



27a 



B 



1 



31.5 



Short experimental con- 



16.27 



3.01 



.673 



.424142.4 



153.2 



1.49 



.0104 



.0126 





1895 



2 





duit at Dijon, France, 



18.70 



3.46 



.925 



.416140.4 



148.6 



1.44 



.0106 



.0131 







3 





joints perfect, exceeding 



19.78 



3.65 



1.050 



.413139.5 



146.9 



1.42 



.0106 



.0133 







4 





smoothness indicated by 



22.71 



4.20 



1.375 



.418139.4 



145.7 



1.41 



.0107 



.0132 







5 





retardation factors. 



25.22 



4.72 



1.725 



.416140.5 



145.1 



1.38 



.0106 



.0131 







6 







25.93 



4.79 



1.750 



. 419 141. 7 



146.1 



1.41 



.0106 



.0129 







7 





• 



26.66 



4.92 



1.850 



.419 



141.5 



145.7 



1.40 



.0106 



.0129 







8 







31.49 



5.82 



2.575 



.420 



141.5 



144.0 



1.38 



.0106 



.0129 







9 







35.66 



6.59 



3.275 



.421 



142.3 



143.2 



1.36 



.0106 



.0128 



28 



S55 



{'J 



36.0 



Clavey siphon, Oakdale 



12.70 



1.80 



.438 



.290 



99.3 



106.5 



1.04 



.0140 



.0260 





1916 





irg. dist., Calif., mono- 



13.40 



1.89 



.330 



.351 



120.3 



130.6 



1.28 



.0119 



.0178 





S54 

 1916 



1 1 





lithic pipe, built with 



13.50 



1.91 



.464 



.298 



102.2 



109.4 



1.06 



.0137 



.0246 



28b 



2 





wood forms, continuous 



13.70 



1.94 



.581 



.270 



92.8 



98.4 



.95 



. 0150 



0300 





1 3 





down grade; built 1912. 



13.80 



1.95 



.587 



.271 



92.8 



98.5 



.95 



.0150 



0299 



29 



S36 



1 



36.0 



Deer Flat Forest pipe line, 

 Boise project, U. S. 



24.60 



3.48 



1.170 



.343 



117.6 



121.2 



1.16 



.0123 



.0187 





1916 

































Reclamation Service, 





























Idaho. 





















29b 



S36b 



1 





Same reach of same pipe 



38.60 



5.45 



2.072 



.403 



138.3 



139.4 



1.33 



.0110 



0134 





1917 



2 





two years later; laid 1912; 



50.00 



7.12 



3.612 



.399 



136.5 



134.8 



1.26 



.0110 



0137 







6 





straight in horizontal 



52.60 



7.44 



3.509 



.423 



145.2 



143.1 



1.35 



.0105 



0123 







4 





alignment. 



58.10 



8.22 



5.328 



.379 



130.1 



126.2 



1.18 



.0115 



0152 







5 







61.30 



8.66 



5.321 



.400 



137.2 



133.2 



1.25 



.0108 



0136 







3 







64.10 



9.06 



5.30 



.419 



143.8 



139.6 



1.31 



.0105 



0124 



30 



S49 



5 



42.0 



Victoria aqueduct, B. C, 



9.68 



1.01 



.076 



.354 



123.9 



139.6 



1.33 



.0112 



0168 





1916 



6 





Canada; siphon No. 1, 



11.45 



1.19 



.097 



.370 



129.2 



144.2 



1.37 



.0113 



0155 







7 





jointed concrete pipe, re- 



13.56 



1.41 



.136 



.370 



129.2 



142.4 



1.34 



.0111 



0154 







8 





inforced; much curva- 



15.97 



1.6fi 



.179 



.380 



132.7 



144.5 



1.31 



.0110 



0146 







1 





ture, extremely smooth 



16.84 



1.75 



.212 



.368 



128.5 



139.1 



1.34 



.0114 



0156 







9 





interior, joints included; 



18.86 



1.96 



.253 



.377 



131.7 



141.6 



1.36 



.0112 



0148 







2 





conditions unusually fa- 



21.55 



2.24 



.316 



.385 



134.9 



143.5 



1.32 



.0110 



0142 







3 





vorable for experimen- 



24.34 



2.53 



.415 



.380 



132.8 



139.9 



1.28 



.0112 



0146 







4 





tation; laid 1914. 



27.99 



2.91 



.530 



.387 



135.1 



141.0 



1.26 



.0111 



0141 



