Old Indian or Old Reservation Canal takes off on the west bank of 

 a side channel in the Yakima River approximately one --half mile above the 

 Siamjrside Damo It is reported to carry about 200 cf oS during the 

 irrigation season, and a small flow is maintained durinp, the rest of the 

 year to water stock on the Yakima Indian Reservation- The diversion was 

 apparently unprotected prior to 1930 when an experimental electric fish 

 screen was installed at the head of the canal o This was later replaced 

 by a 1/2* spaced bar screen, which provides some protection to fish* 



Tha Wapato Diversion Dams are located approximately 91 miles up 

 the Yakimaj, and were built in 1917o There is a 9 foot high concrete 

 dam across the east channel^ and another dam across a west side channel, 

 both being flanked by long earth dikes „ In 1930 a ladder was built in 

 the center of the east=channel damo A second ladder was later constructed 

 at the west end of the same dam^ but it appears to lack attraction for fisho 

 The dam across the east channel is not equipped with a fishway. The Yakima 

 Indian Reservation borders the river in this area and Indians fish for 

 salmon and steelhead below these daraSo 



Wapato Canal_ of the Uo So Indian Irrigation Service takes off from 

 the west bank above the west channel dam, and has a capacity of 2,000 CofoS. 

 It was unscreened prior to 1929 when an electric fish screen was installedo 

 In 1939 the present battery of ten rotary screens was installed at a point 

 one-half mile below the take-off o 



Rich artz Ditch takes off on the east bank approximately 98 miles 

 upstream,, between the Moxee and the Yakima highway brj.dges« It is 

 ecfuipped with a rotary drum screeno 



Union frap Ditch takes off from a side channel 99 miles upstream and 

 less than a. mile above the Yakima highway bridge. It has a capacity of 71 

 Cof oS and has a new rotary screen located a short distance below the take- 

 off, with a by-pass for fish emptying directly into the Terrace Heights 

 Wasteway of the Roza Canal » 



MoxeeDitch takes off immediately above the Union Gap Ditch and 

 has a capacity of at least 24 CofoS A headgate and a rotary drxm soreen 

 are located a short distance below the take-off before the ditch crosses 

 the Terrace Heights Wastewiayo The canal below the screens is usually re- 

 ferred to as the Ray Slavin Branch , and runs for se:fe-eral miles down the 

 valley to irrigate farms in the vicinity of Moxee, Washingtono Two short 

 by=pas8 cliannels from the Moxee Ditch, one from in front of the headgates 

 and the other from in front of the rotary screen, Join immediately and 

 form the Middy Branch of the Moxee Canal o This is now protected by a new 

 rotary screen located a few yards below, with a fish by-pass leading 

 directly into the Terrace Heights Wastewavo The Middy Branch crosses the 

 Terrace Heights Wasteway and supplies the Hubbard , Granger , Bott #1 and 

 the Normandin ditches, and then empties any remaining water into the 

 RioKiBirtz Ditch at a point just abosre the rotary screens in the latter 

 canal o 



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