The Icicle irrif^ation and water supply dam is located about 

 5 miles above the moutho It is a concrete structure with a drop 

 of 2 1/2=4 feet, and is usually a barrier during the irrigation 

 season., The Icicle irrigation ditch intake on the south end of 

 the dam has a capacitj'- of 110 c.f.s. It was screened in 1938. 

 The town of Leavenworth water supply intake is located at the north 

 end of the dam, and also is screened. 



12E. Chiwaukum Creek»— (October 15, 1935 j Burrows.) This 

 tributary enters the Wena tehee River 38 miles upstream. It is 

 over 11 miles long, and was surveyed for 4 l/2 miles to a series 

 of impassable falls having a total drop of nearly 250 feet. It 

 had a flow of 25 Cof.s, at the time of observation and is in a 

 narrow, forested, valley that is not over l/4 mile wide at any 

 point except at the mouth. The gradient is steep, being 100 

 to 150 feet per milej large rubble predominates, and there is 

 suitable spawning for only a few hundred fish. There are five 

 diversions 5 three being unscreened irrigation diversions, one 

 a screened diversion to a state trout hatchery, and the other 

 a screened diversion to a C.C.C, camp that is no longer in use. 

 No salmon runs were reported, and rainbow and cutthroat trout, 

 formerly abundant, were considerably depleted. A few steelhead 

 trout are reported to enter. The South Fork, the only tributary 

 of size, enters above the falls and is therefore inaccessible. 



12F. Beaver Creek, -»- (July 13, 1937j Baltzo.) This small 

 creek enters the Wena tehee approximately 48 miles upstream. It is 

 5 miles long, and is quite brushy. It had a flow of 4 c.f.s., but 

 is largely used for local irrigation, and becomes almost dry later 

 in the summer. It is of no value to salmon. 



12G. Chiwawa River . — (October 1,9, and 10, 1935; Whiteleather, 

 Burrows, and Shuman.) Enters the Wenatchee approximately 50 miles 

 upstream, extends for 27 miles, and was completely surveyed. Its 

 headwaters are fed by small glaciers near the Cascade summit, and 

 during the spring and early summer the stream is clouded by glacial 

 silt, clearing in the fall. The sixmner and fall discharge is usually 

 100-150 c.f .So The spring run-off in April, May and June, fed by 

 heavy snow melt, occasionally reaches a peak of 2,400 c.f.s. The 

 gradient is mor^erate throughout, and the current is usually fairly 

 fast. The water temperature was 45-51''f. There is a considerable 

 amount of spawning area, estimated to exceed 100,000 square yards. 

 No salmon were found at the time of the survey, and it was reported 

 that there had not been any run into the Chiwawa for at least 20 

 years previously, although it had been a favorite salmon fishing 

 stream of the Indians in the early days. After the start of the 

 transplantation of a portion of the up-river runs into the Wenatchee 

 River system in connection with the Grand Coulee Dam project,^ beginning 

 in 1939, stream observers each year found a few chinook salmon ascending 

 the Chiwawa to spawn. It is hoped that the run may be reestablished. 

 The stream supports a good resident trout population. The only diversion 

 on the stream is Ipcated 3 l/2 miles above the mouth, and has a capacity 

 of 40 c.f.s. for irrigation. 



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