A 57.0 HANSEN CREEK (Lake Alekmgik) 



LOCATION: 59°19'U2" N. 158%1'W' W. 



PREVIOUS NAIffiS OR NUI'IBERS: 



U.S.G.S. MAP: Dillingham, Alaska, 1:250,000, 1951 



PHYSICAL DESCRIPTION 



TOTAL LENCTH: 1-3 miles 



LENGTH ACCESSIBLE TO SAD-ION: 1.3 miles 



AVERAGE WrDTH: 13' RANGE: 6 '-20' 



AVERAGE DEPTH: 4" RANGE: 2"-12" (i4idstream) 



TOTAL ACCESSIBLE SPAWNING AREA: 2.05 acres 



POTENTIAL SPAWNING AREA: 100^; 2.05 acres 



BOTTOM QUALITY: 100^ small gravel 



WATERSHED: 1.0 square mile. Creek svirrounded "by small trees throughout its 

 entire length. East and vest forks originate from spring fed ponds; some 

 other springs also present . No obstructions in creek itself, but west 

 fork beaver dam may form blockage to pond spawners. 



GRADIENT: 



WATER VELOCITY: Average =2.3 fps. 



Range = 2.0-2.5 fps. 



FLOW: 8.0 cfs.(Aug. 12, 1946). Medium- RANGE: 

 low water level. 



8.95 cfs.(Aug. 9, i960). Medium 

 water level. Flow station at mouth. 



AIR TEMPERATURE: lk.k° C. (Aug. 9, I960) 



WATER TEMPERATURE: 8.9° C. (Sept. 2, 19^6 and Aug. 9, I960); 

 10.1° C. (Aug. h, 1962) 



POOLS AND RIFFLES: No pools except beaver ponds on either branch. 



53 



