A power dam 4 feet in height was oonstriacted by the Rjget 

 Sound Povrer and Light Company on the Entiat pbout 3 miles above 

 the mouth. This dam formed a barrier because of the diversion of 

 a major part of the flov; to the power plant one mile downstream, 

 the intervening river chonnel being impassable at low water stages « 

 The dam was provided viith a fishway in 1939. The production of 

 power at this point was abandoned in 1938, but the canal is still 

 used to supply irrigation water, and an excessive amount of water 

 is diverted from the river merely to be returned unused farther 

 downstream. 



Another dam in the Entiat, known as the Kellogg Mill Dam, was 

 built in 1913 at a point a little over 3 miles above the mouth. This 

 dam was 8 feet high, and was a barrier to fish except at flood stages. 

 The mill burned in 1917, but the dam continued to bar the passage of 

 fish \intil an open' ng v.'ps '.^lasted through the structure by sportsmen 

 in 1932, This daia l;-.ter was ccmr^letely washed out. 



The Harris Mill Dair., formerly located 11 miles up the Entiat, 

 was constructed in 1930. This dam, 13 l/2 feet high, v/as provided 

 with an ineffective fishway in 1931« A better fishway was constructed 

 in 1939. The entire structure was v/ashed out in the flood of 1948. 



Most of the diversions were screened, beginning about the year 

 1930, so that toward the end of the decade many of the former hazards 

 to the migration of fish had been partially or totally removed. As 

 a result of these stream improvements the productive capacity of these 

 two rivers was somewhat improved and they, together with the Methow 

 and Okanogan Rivers, were selected as the streams to receive the 

 stocks of fish blocked by Grand Coulee Dam. This transplantation 

 program took place during the period 1939-1943. l/ 



\/ Fish, Frederic F. and Hanavan, Mitchell G. A Report upon the 

 Grand Coulee Fish-Maintenance Project, 1939-1947. - Fish and 

 Wildlife Service, Special Scientific Report No, 55, November 

 1948, p. 1-6 3. 



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