18. Milton Creek .— (tfey U-15, 194-6; Parkhurst^ Fulton^ and 

 Gangmark). Enters the Colujp.bxa via the Vifillamette Slough at St. Helens^ 

 Oregon. The stream is about 20 miles long, of which the lower 7.2 miles 

 were s'jrveyedo The stream was 18-30 feet wide^ discharging 18 c.f»s._, 

 and the water temperature vvas 53° F. 



Between 5 and 6 miles above the mouth there, is a 3 ft. high con- 

 crete dam and two cascades.., one of which is believed to be a low -nater 

 barrier- A diversion in the headwaters provides the water supply for 

 the town of St. Helens, and greatly reduces the normal stream flow- 

 Sewage and other pollution was noted in the lower section of the stream. 

 There is spa-wning area for about 1,000 fish in the section surveyed. 

 Numerous fingerlings, believed to be mostly silvers and some chum salmon, 

 were obsei v-ec"" . Several steelhead redds also were seep. 



19. McNulty Creek .— (inspected Ifey 15, 194-6; Parkhurst, Zimmer, 

 and Brewington). Enters the Columbia via Willamette Slough near the 

 town of Warren c, Oregon. It is about 7 miles long and was discharging 5 

 c.foS.^ but is reported to become dry at tiraes during the summer. There 

 is little suita.ble spawning area and the stream is of no value to salimsn. 



20. Scappoos e Creek.— -(October 8, 194-5; Parkhurst and Brewingtcn). 

 Enters the Columbia River via Willamette Slough near the town of VSfarrenj 

 Oregon. The main stream is about 6 miles long, of T;hich the lower 4 

 miles is tidal slough of no value as a spawning area. The 2 mile sec- 

 tion from tidewater to the confluence of the north and south forks was 

 surveyed. In this section the stream was 15-21 feet wide^ had a flow 

 of 10 c.f.s.j and the water temperature was 60° F. The gradient is 

 slight and there is. suitable spawning area for about 200 salmon. There 

 is some silting of sjawning beds due to bank erosion. Between 60 and 70 

 spawning fall Chinook salmon were observed. Several log jams and beaver 

 dams may be barriers x.o fish at lovf water, and should be removed. 



20A. Ncrth Fork, Scappoose Creek . — -(October 8, 1945| Parkhurst, 

 Davis J and Johanson). The stream is 10 miles long, of which the lower 

 5 miles were sur^'eysd to an impassable waterfall 18-20 feet in height. 

 The stream was 7-12. feet wide^, discharging 5 c.f.s., and the water 

 temperature was 58° F. The gradient is slight to moderate. The stream 

 bed in the surveyed section contains 6,200 sq. yd. of suitable spawn- 

 ing area, sufficient to accommodate more than 600 fish. There also is 

 an undetermined amount of spavirning area above the falls. 



There were n'omerous log jams and beaver dams in the stream., some 

 of which vrere barriers to the migration of salmon. 



No salmon were observed in the North Fork, possibly due to a bad 

 log jam 200 yards above the mouth. Fall chinook, silver salmon., and a 

 few steelhead vrere reported up to the falls in past years . 



The stream should be made passable to migratory fish and the value 

 of a fishway over the falls should be determined. 



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