(river km 240) . Several major diversions are present on the lower 

 Yellowstone River. Forsyth (Cartersville or Rosebud) diversion, 

 located at river km 382 and Intake diversion, located at river km 

 114 are two major diversion dams. 



Forsyth diversion dam is a concrete structure extending 230m 

 across the entire width of the Yellowstone River and diverts water 

 for irrigation along the north side of the river. During 

 intermediate to low flows the structure creates approximately a 0.5 

 to 1.0m vertical drop. During high spring flows and when ice jams 

 form below the diversion the difference between water elevations 

 immediately upstream and downstream from the diversion is less 

 pronounced. 



Intake diversion extends 219m across the main channel of the 

 Yellowstone River and provides water for irrigation along the north 

 side of the Yellowstone River. A side channel, which begins to 

 flow at a total discharge of 23,000 cfs, bypasses Intake diversion 

 to the south. The head and tail are approximately 3 km upstream 

 and 3 km downstream from the diversion. The diversion is a wooden 

 structure which has been covered by large boulders to raise the 

 head. New boulders are placed on the diversion every few years to 

 replace boulders which are pushed downstream by ice and high water. 

 The diversion does not form a sharp vertical drop. The downstream 

 drop is approximately 1.2 m in 30 m and is characterized by very 

 turbulent water. The structure can divert a maximum of 33.0 m3/s 

 (1,200 cfs) . 



