Preliminary report on waterpower resources of Cascade Creek, Scenery Creek, and Delta Creek near Petersburg, Alaska

Abstract

The heavy precipitation and runoff, suitable storage sites near tidewater, and steep stream gradients are favorable to the development of hydroelectric power on the streams considered in this report. A geologic examination of the sites indicates that their development would not be hindered by any unusual geologic conditions. On the basis of the 18 years of available stream-flow records for Cascade Creek, it is estimated that 20,800 kilowatts of power could have been generated continuously on Cascade Creek; 13,300 kilowatts on Scenery Creek, and 7,900 kilowatts on Delta Creek. Conditions for power development on Delta Creek are not as favorable as on Cascade Creek or Scenery Creek in view of the size of the structures required in relation to the potential power. The development of a substantial part of this power would depend upon the creation of new industries as the present power market is very limited. There is a heavy growth of timber near tidewater throughout this part of Alaska, and the utilization of this timber in the manufacture of wood pulp is the most likely industrial possibility. The Cascade Creek, Scenery Creek, and Delta Creek drainage basins are in rugged mountainous terrain. There is little land in the immediate vicinity suitable for the location of industrial developments and the supporting communities, and the power would have to be transmitted to a more favorable area. A considerable area is available near Point Agassiz on Frederick Sound about 10 air-line miles from the mouth of Scenery Creek and 5 airline miles from the mouth of Delta Creek.