■. Fish arriving at high water apparently pass the Stayton maze 

 without serious delay j, but later arrivals are delayed or blocked. 

 If the Yrasteway and power canal route is to be used successfully 

 its fish-vray must function properly at all times <, If this route is 

 not to be used, then sufficient water must be passed through the 

 upper Gardiner Dam fishv/ay to keep the south channel passable, the 

 Stayton Wasteirray return should be screened to prevent the entrance 

 of adult fish^ and the north channel should be screened to prevent 

 the entrance of downstream migrants o Adequate fish protection at the 

 Stayton channels should in itself greatly increase the returns from 

 both natural and hatchery fish production in the North Santiam River. 



The Mill City power diversion dam^ 8 feet high^, is located 38|- 

 miles above the mouth. The former inadequate fishviray was replaced 

 in 194.7 with tvro nevi f ishways through the efforts of the Oregon Fish 

 Commission and Game Commission, The diversion vras unscreened at the 

 time of the survey <, 



A log jam 15 feet high located in a narrow gorge 51 miles up- 

 stream near Lakewood was passable with difficulty., 



The Detroit dam site is in a narrow gorge approximately 52 miles 

 upstream. The dam, now under construction by the U» S. Army Engineers, 

 will be 259 feet high and will eliminate all anadromous fish produc- 

 tion above this point. 



Hatchery racks at the confluence of the Breitenbush River ^ approxi- 

 mately 57 miles upstream, stop all fish in both the Breitenbush and 

 North Santiam Rivers after May of each year. 



A bedrock chute and falls 9 feet high located 61 miles upstream is 

 very difficult to pass, and there are several lower falls and cascades 

 in the upper 15 miles . 



Domestic sewage and industrial wastes from the towns of Stayton, 

 Mill City, Detroit, and other smaller communities are emptied into the 

 river. The most obnoxious of these pollutants was hot dye-stuff dis- 

 charged by the Paris woolen mill into the Stayton wasteway where it 

 was observed to drive adult Chinook salmon doymstream and away from the 

 fish ladder. 



There was spawning area available for at least 20,000 salmon below 

 the Detroit dam site, and sufficient area below Stayton to accommodate 

 an additional 10^000 fish if water temperature and flows were more 

 favorable. Above the Detroit dam site there was spawning area in the 

 North Santiam for at least 10,000 salmon. This cooler upper section 

 contains the preferred spawning area, and more than half of the number 

 of salmon in the stream would utilize this area if they were not taken 

 at the hatchery racks at Detroit. 



50 



