48 BULLETIN 102&, U. S. DEPABTMENT Or AGKICULTURE. 



Table 14. — Duty measured at the heads of laterals. 



1916. 



Lateral. 



Canal. 



Days 

 run. 



Acres 

 irri- 

 gated. 



Acre- 

 feet 

 used. 



Acre- 

 feet per 

 acre. 



Acre- 

 feet per 

 acre, 

 entire 

 canal. 



Ratio. 



Cactus HiU 



North Poudre Canal 















No. 2 Outlet 



do 



129 

 81 

 104 

 105 

 126 

 28 



2,935 

 1,219 

 2,170 

 1,123 

 444 

 129 



2,745 

 1,273 

 3,791 

 1,151 

 1,128 

 79 



93 

 1.04 

 1.75 

 1.03 

 2.54 

 .61 



1.40 

 1.53 

 1.53 

 1.53 

 1.94 

 L96 



66 







67 





do 



114 



Bliss 



Pierce Lateral of Larimer County Canal . 



67 





131 



Mitchell 





31 



Dixon Canyon 



Town 







Larimer and Weld Canal 



106 



4,092 



7,678 



L87 



L63 



115 













1 











Total and 





12,112 



17,845 



1.47 



1.58 



93 



average. 









Cactus HiU 



North Poudre Canal 



108 

 110 

 106 

 115 

 115 

 113 

 27 

 44 

 105 

 74 



1,870 

 2,935 

 1,210 

 2,169 

 1,163 



444 



83 



1,066 



4,166 



575 



2,667 

 3,579 

 1,850 

 4,634 

 2,017 

 1,233 

 58 

 1,484 

 9,519 

 1,234 



1.43 

 L22 

 1.53 

 2.12 

 1.73 

 2.78 

 .70 

 1.39 

 2.29 

 2.15 



1.48 

 1.48 

 1.76 

 L76 

 L76 

 2.05 

 1.70 

 L71 

 L68 

 L98 



97 



No. 2 Outlet 



do 



82 







87 





do 



120 



Bhss 



Pierce Lateral of Larimer County Canal. 

 Jackson 



98 





136 



Mitchell. .. 





41 



Dixon Canyon . . . 



Larimer County Canal, No. 2 



81 





136 





Lake Canal 



109 









Total and 





15,681 



28, 275 



1.80 



1.68 



107 



average. 









DUTY AT HEADS OF LATERALS. 



During the investigation, records of discharge and acreage irri- 

 gated were obtained for a number of laterals to afford a comparison 

 of the duty measured at the head of the lateral with the duty meas- 

 ured at the head of the canal. The results of the measurements, to- 

 gether with the comparisons, are shown in Table 14. These erratic 

 variations may be occasioned by a number of conditions. There are 

 no restrictions on holdings of shares of ditch stock with reference to 

 the acreage irrigated, and under a single lateral the ratio between 

 the two may be as much as 20 per cent above or below the average 

 ratio for the entire canal. Such a lateral would be entitled on its 

 shares to an amount of water 20 per cent above the average for the 

 entire canal. What is true of canal shares is true to a greater degree 

 of reservoir rights carried in the canals which act as common carriers, 

 for water from this source is limited only by the number of rights 

 which can not be bought, rented, or borrowed. A considerable part 

 of the variation may be attributed to S3^stems of distribution to 

 laterals. A few of the canals, including the Little Cache la Poudre 

 and the Jackson ditches, have no measuring devices for distribution 



