22A. Gordon Creek »— (Inspected March 15-20, 19-40 j He.ravan and 

 Parkhurst). Enters the Sandy Kivur about 11 miles above the mouth.. 

 It is the largest of the minor tributaries and maintains a fair sum- 

 mer flow when other small tributaries are nearly dry. The discharge 

 at the time cf observation vias about ^5 c.f.s. The stream contains 

 some good spawning area, but was not surveyed in detail. Several 

 liberations of fall chinook salmon fingerlings have been made into 

 Gordon Creek from the U. S. Fisheries Station at Underwood^ Washington. 



22B. Trapper Creek .— 



22C. Trout Creek .— (inspected Iferch 15-20, 1940; Hanavan and 

 Parkhurst V These two streams enter the Sandy River near Gordon Creek <. 

 Both reacn very ? ow vrater stages in summer, and therefore are of little 

 or no value to salmon. 



22D. Bull Run River .— (March 15-20, 194-0; Hanavan and Parkhurst). 

 Enters the Sandy River about 16 miles above the mouth. The stream is 

 about 25 miles long^ of which the lower 11 miles were surveyed up to 

 the Portland domestic water storage dam. In the lower section the 

 river was 100-150 feet viride. The discharge varies widely due to diversion 

 demands . 



The Bull Run power plant of the Portland General Electric Company 

 is located l|- miles above the mouth. 



The Mvinicipal Water Deiartment of the City of Portland operates 

 a diversion dam 40 feet in height located 6 miles above the mouth. 



This dam forms the upstream limit of fish migration. 



Five miles farther upstream there is located the high storage daa of 

 the Portland Minicipal Water Department. 



The stream gradient is fairly steep, and contains comparatively 

 little spawning area. It is estimated that the 6 mile section up to the 

 diversion dam, might accommodate 2,500 fish. A fev; silver salmon and 

 steelhead trout spawn in this section. There is a possible hatchery site 

 in this section for the propagation of fall chinook, silver salmon, and 

 steelhead trout. Because of the nature of the stream bed the 5 mile 

 stream section from the diversion dam to the high storage dam is of little 

 potential value to migratory fish. The area above the storage dam is of 

 no possible value to migratory fish. 



22I>"(1)„ L ittle Sandy River .— (March 15-20, 1940| Kanavan and 

 Parkhurst). Enters the Bull Run River about 3 miles above the mouth. 

 The stream is about 12 miles long, of which the lower 1^ miles was surveyed^, 

 up tc an impassable power diversion dam 15 feet high. 



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