Daily discharge, in second-feet, of Long Prairie River near Motley-Continued. Day. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. Dec. NOTE. Daily discharge computed from a well-defined rating curve. Monthly discharge of Long Prairie River near Motley. [Drainage area, 973 square miles.] Estimated from climatological records and open water relation between flow at Pillager and Motley. DEVELOPED WATER POWER. There is only one power development on Crow Wing River, but there are six small plants on tributaries. As no records of runoff are available for the tributaries, no estimate of the available power on these streams can be given. Crow Wing River 4 miles above the mouth:-The Cuyuna Range Power Co. has in the course of construction a 20-foot dam on the Crow Wing River just below the mouth of Gull River and about 4. miles above the confluence of the Crow Wing with the Mississippi. This dam will back water to a distance of about 7 miles, forming a narrow reservoir, flooding about 800 acres. Flowage rights have been secured, so that in cases of necessity 2-foot flashboards may be used which will overflow about 900 acres. A short open flume takes the water to the power house in which are located 2 S. Morgan Smith 48-inch wheels with a rated capacity of about 900 horsepower each. A Woodard oil pressure automatic governor is used to regulate the speed of the wheels. Connected to one turbine is an Allis Chalmers, 500 KW, 3-phase, 60 cycle, alternating generator of 2300 volts. A transmission line is to be built to the Cuyuna Range towns including Deerwood, Crosby, Ironton, and Cuyuna, a distance of about 28 miles. The current to be transmitted at 35,000 volts. Thirty-five foot Cedar poles are to be used in the construction of the transmision line. It is expected that the plant will be run continuously. There is an auxiliary steam plant of about 300 horsepower at Deerwood, Minn., which can be used in case the flow of the river is not at all times sufficient to generate the needed power. From the records of flow of Crow Wing River it is seen that the flow at the dam for the lowest month on record, the lowest month of an average low year, and the lowest flow for the six high months of an average low year, are 315, 501 and 716 second-feet respectively corresponding to 573, 913 and 1300 horsepower at 80 per cent efficiency. Straight River at Osage. A flour mill at Osage develops about 50 horsepower used chiefly in operating the mill. Fish Hook River at outlet of Fish Hook Lake near Park Rapids. -The dam at the outlet of Fish Hook Lake creates a head of 12 feet which is utilized by a power plant having an installed capacity of 330 horsepower and an average development of 75 horsepower used in running the flour and feed mill and in furnishing Park Rapids with light and power. Long Lake Outlet at Hubbard. At the outlet of Long Lake a dam creates a head used in developing about 75 horsepower utilized in operating a flour mill at that point. Two Inlets River. A dam creates a head of 171⁄2 feet which is utilized by means of a single turbine in developing an average of 40 horsepower. This is used in operating a flour mill. Belle River at Spruce Hill.-A water power of approximately 50 horsepower is developed at this point for use in operating a flour mill. Wing River at Verndale. A dam creates a head of 9 feet which is utilized by means of a 54-inch wheel of 60 horsepower capacity in operating a feed mill. UNDEVELOPED WATER POWER. FEASIBLE SITES. A survey of Crow Wing River from the mouth to the outlet of the Crow Wing lakes was made in 1909. The results of this survey are given on plates 20 to 28 inclusive of the atlas. From these sheets the following table of elevations and distances has been compiled: Elevations and distances along Crow Wing River from mouth to Crow Wing Dam. For 19 miles below the Crow Wing lakes, the slope of Crow Wing River is too slight for power development. Below that seetion the fall of the river becomes greater, but the banks are not adapted for power sites above a point 2 miles below Oyelen. In Sec. 26, T. 136 N., R, 33 W.-A 28-foot dam located 2 miles miles below Oyelen, at mile 54.8 would back the water 5 miles up the river, overflowing 210 acres of brush land. The length of the dam would be 200 feet at the water surface, and 600 feet at the top. Below this point the slope of the river is slight and the banks are low being bordered by swamp in many places. This condition holds nearly to the bridge south of Pillager where the banks are of sufficient height and close enough together to offer a dam site. |