Fish-friendly Irrigation 



In some cases irrigation diversions can replaced with step-pool fish ladder/diversion structures (right). These structures 1) 

 provide fish passage, 2) maintain channel stability, 3) set elevation control for the diversion, and 4) are very low 

 maintenance. Where appropriate, this type of structure is an excellent option. 



Fish Screens: Losses of migratory fish like westslope cutthroat trout and bull trout to irrigation ditches is extensive. 

 These photos show two of several options used to screen fish out of ditches. Both are self-cleaning. The screen on the left 

 operates with electricity, while the screen on the left is self-powered and operates under a wide range of flows. 



