I UNITED STATES DEPARTMENT OF AGRICULTURE 
(VL4-B ^ BULLETIN No. 376 
Reserve 
Washington, D. C. 
Issued November 25, 1916 
Revised October, 1925 
THE FLOW OF WATER IN WOOD-STAVE PIPE 
By 
FRED. C. SCOBEY, Irrigation Engineer 
Bureau of Public Roads 
CONTENTS 
Page 
Introduction 1 
Nomenclature 3 
Formulas for Flow of Water in Wood- 
Stave Pipe 4 
Trend of Engineering Thought Regard- 
ing the Carrying Capacity of Wood- 
Stave Pipes 7 
Necessary Field Data for Determination 
of Retarding Elements of Various 
Formulas 14 
Equipment and Methods Employed for 
Collecting and Interpreting Field Data 16 
Elements of Field Tests to Determine 
Friction Losses and Comparison of Ob- 
served Velocities with Velocities Com- 
puted from Various Formulas 26 
Page 
Description of Pipes 40 
A New Set of Formulas for the Flow of 
Water in Wood-Stave Pipe 48 
Comparison of the Various Formulas . . 55 
Kutter's Formula as Applied to Wood- 
Stave Pipe 56 
Effect of Age upon the Carrying Capacity 
of Wood-Stave Pipe 58 
Capacity of Wood-Stave Pipes 58 
Estimate Diagrams and Table 66 
Capacity of Wood -Stave Pipe Compared 
with that of Cast Iron and Riveted Steel 72 
Conclusions 73 
Acknowledgments 74 
Appendix 74 
Additional Data 81 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
i 1926 
