UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 502 



Contribution f^om the Office of Public Beads and Rural Engineering 

 LOGAN WALLER PAGE, Director 



Washinston, D. C. 



PROFESSIONAL PAPER 



AprU 23, 1917 



THE DRAINAGE OF IRRIGATED 

 SHALE LAND 



By 



DALTON G. MILLER, Senior Drainage Engineer, and 

 L. T. JESSUP, Junior Drainage Engineer 



Introduction .... 

 Geological Features . 

 Surface Topography . 

 Underground Water . 



AUiali 



Drainage Methods . . 



CONTENTS 



Page 



Construction 20 



Cost Data 22 



Examples of Methods > 23 



Results of Drainage . 38 



Conclusion • 39 



WASHINGTON 

 GOVERNMENT PRINTING OFFICB 



1917 



BSBB 



