N lUl.4 FEMO CREEK (Lake Nerka) 



LOCATION: 59° 26 '30" N. 158%7'06" W. 



PREVIOUS NAMES OR NUMBERS: 



U.S.G.S. MAP: Dillingham, Alaska, 1:250,000, I95I 



PHYSICAL DESCRIPTION 



TOTAL LENGTH: 3.2 miles 



LENGTH ACCESSIBLE TO SALMON: 3.2 miles 



AVERAGE WIDTH: 25' RANGE: 10' -65' 



AVERAGE DEPTH: ik" RAITOE: 8" -36" 



TOTAL ACCESSIBLE SPAWNING AREA: 9.7 acres 



POTENTIAL SPAWNING AREA: 64^; 6.21 acres 



BOTTOM QUALITY: 90^ gravel, 5°/^ sand, 5/^ rubble 



WATERSHED: I5.8 square miles. Drains valley behind Jackknife Mountain. 

 No obstructions except for high beaver dam on left forK, 



GRADIENT: 



WATER VELOCITY: Average =2.8 fps. 



Range = 2.3-3.3 fp^. 



FLOW: 104 c.fs. (Aug. 13, I960). High RANGE: 



water level. Flow station is 

 100 feet up from mouth. 



AIR TEivIPERATURE : 12.2° C. (Aug. 13, I960) 



V/ATER TEMPERATURE: 8.9° C. (Aug. 13, 196o)j 12.8° C. (Aug. 12, I962) 



POOLS AND RIFFLES: Many narrow deep pools about 200 feet apart. 



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