112 

 I 164.8 JACK DURAND CREEK ( Iliamna Lake) 



LOCATION: 59%2'30" N. l^k° 01'il2" W. 



PREVIOUS NAMES OR NUMBERS: D7 



U.S.G.S. MAP: Iliamna, 1:25,000 



PHYSICAL DESCRIPTION 



TOTAL LENGTH: 2-5 miles 



LENGTH ACCESSIBLE TO SALMON: 2-5 miles 



AVERAGE WIDTH: 10' RANGE: 5'-l8' 



AVERAGE DEPTH: 9" RANGE: 8"-l6" 



TOTAL ACCESSIBLE SPAWNING AREA: li;,520 square yards (3-0 acres) 



POTENTIAL SPAWNING AREA: 45^, 6,776 sqmre yards (l.ij- acres) 



BOTTOM QUALITY: Fair gravel in lower mile, much rubble beyond 1 mile, 

 bottom stable. 



WATERSHED: 6 sqiiare miles. Lower mile a broad flat heavily forested with 

 spruce and birch, upper part a steep, stream-cvrt canyon. Source: springs 

 and surface jrunoff . 



GRADIENT: 3^6' /mile to 0.6 mile; 928 '/mile from 0.6-2-5 miles 



WATER VELOCITY: 2.0 cfs 



FLOW: 13 cfs (July 3, 1962). Measiired RANGE: 

 at mouth, normal summer flow. 



AIR TEMPERATURE: 17.0° C. (July 3, 1962) 



WATER TEMPERATURE: 6.0° C. (July 3, 1962) 



POOLS AND RIFFLES: 



