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FFo Coast Fork, Willamette River o<..oooon»oo.c,.oo<.oo«o 79 



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Q e llaXlilS Ox 661c ooooooaooo»ot«ooooo •^" oX 



c <i MoGauley Creek <,oo<,<,ooo«ooo«»ooe 81 



* io Table Creek 



# iio Buck Creek 



# iiio Walker Creek 



* iVo "White Creek 



* Vo tertin Creek 

 •»- vie J^irview 



fo PVank Brice Creek «o » 000 00 ■, o «« o o S3 



The Survey 



25. Willamette River e— (June 6-9, 1938j Hanavan, farkhurst 

 Iforton, Langton, and Wildiiige) inters the Columbia Rivur 103 miles 

 above the mouth j, and extends for' approxiinately 189 miles to the con- 

 fluence of the Coast and Middle Forks <> Throughout most of its coor'se 

 the river is sluggish and the stream bed is comix)sed of mud and silt? 

 The detailed survey -uras started at the first good riffle., located about 

 7 miles below the mouth of the McKenzie River^ and covered the upper 18 

 miles of the main stream o 



The average flow at Harrj.sburg^ 11 miles beloyj- the mouth of the 

 McKenzie River v;as 9^477 cf.So^ the maximum 82,600 CofoSo, on Febraary 

 14, and the minimum lj,990 CofoSo^ on October 30, according to UuSoGoSo 

 records for the water year 1944.-"45o Floods of much greate: volume than 

 the above .maximum occur in some j^ears© 



There are no total barriers to fish on the main TiVillamette Ri'^ero 

 Willamette Falls at Oregon City,, about 23 miles above tiie mouth, has in- 

 terfered v;ith the passage of migratory fish. The fishvjay over the falls 

 has been improved recently by the Oregon Fish Commission, and is the 

 subject of further study. 



* Streams that 7;ere too small or too steep to T/arrant survey.. 



32 



