A 55.6 HAPPY CREEK (Lake Alekmgik) 



LOCATION: 59°20'00" N. 158%3'12" W. 



HffiVIOUS I\IAMES OR NUMBERS: 



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



PHYSICAL DESCRIPTION 



TOTAL LENGTH: k miles 



LENGTH ACCESSIBLE TO SAmON: It- miles 



AVERAGE WIDTH: 10' RAIIGE: 7 '-22' 



AVERAGE DEPTH: 10" RANGE: 6"-30" 



TOTAL ACCESSIBLE SPAVMING AREA: ij-.85 acres 



POTENTIAL SPAT-miNG AREA: 80^; 3.88 acres 



BOTTOM QUALITY: 9Cffl gravel, lOfp mtd 



ViATERSHED. 4.5 sqxiare miles. Long br\ashy, drainage creek arising near 



source of Fenno Creek. Draining through flat valley alongside Jacknife 

 Mountain. Numeroixs logs in creek, b\it no serious obstructions. 



GRADIENT: 



'I'iATER VELOCITY: Average = 3.0 fps. 



Range = 2.5-U.6 'fps^ 



FLOW: 34.5 cfs,(Aug. 11, I96O). Medium RANGE: 

 ■vra.ter level. Flow station is 200 yards 

 up from mouth. 



AIR TSi4PERATURE: 13-3° C. (Aug. 11, I960) 



WATER TBMPEPATURE: 7.8'' C (Aug. 11, I96O) 



POOLS AND RIFFLES: Numeroiis pools behind Ic^s and fallen trees approximately 

 every 75 feet. 



hi 



