N 122.9 STOVALL CREEK (Lake Nerka) 



LOCATION: 59**a6'00" N. l^S^SS-QO" W. 



PREVIOUS NAMES OR NUMBERS: 



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



PHYSICAL DESCRIPTION 



TOTAL LENGTH: k.3 miles to first pond 



LENGTH ACCESSIBLE TO SAmON: k.3 miles 



AVERAGE WIDTH: 35' in lower part RANGE: 23 '-k^' 



AVERAGE DEPTH: iB" RANGE: 6"-k2" 



TOTAL ACCESSIBLE SPAWNING AREA: lB.2h acres 



POTENTIAL SPAWI^ING AREA: 75^; I3.68 acres 



BOTTOM QUALITY: 70^ gravel, 10^ rubtle, 10^ m\id, 10?^ boiilder 



WATERSHED: 8.0 square miles. Drains firom a series of muddy spring potholes 

 through flat tundra valley. Many washed oxit beaver dams, but they do not 

 constitute an obstruction. 



GRADIENT: 



WATER VELOCITY: Average = 2.0 fps 



Range = 1.5-2.8 fps 



FLOW: 57.3 cfs (Aug. 7, I960). Water RAI^GE: 



level high. Flow station 100 

 yards upstream from mouth. 



AIR TEMPERATURE: ' 11.9° C. (Aug. 7, I96O); 20.5° C. (Avg. 23, I96O) 



WATER TEMPERATURE: 11.9° C (Aug. 7, I96O); iG.k" C. at mouth (Aug. 23, I962) 



POOLS AND RIFFLES: Deep areas against bank approximately every 200 feet. 



112 



