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<br /> <br />The program includes treatment of 15.3 million acres of rangeland during <br />the 1965 to 1980 period and treatment on about 35 million acres between <br />years 1981 and 2020. <br /> <br />Forest Land--Programs for development and management of forest land <br />and resources are designed to utilize and maintain or improve the total <br />productive capacity of the land and water, including wood, forage, rec- <br />reation, wildlife, and water to meet the regional and national needs of <br />the people. <br /> <br />Structural and other management and development programs are designed <br />to reduce sheet, gully, and streambank erosion, control peak runoff, and <br />prevent downstream floods. Roads, trails, and other improvements are <br />designed, constructed, and maintained to minimize erosion and sediment <br />yield and deposition. <br /> <br />The program includes the treatment of 3.6 million acres of forest <br />land during the 1965 to 1980 period. The demands for forest resources <br />and uses by 2020 will require the treatment and management of about <br />7.6 million acres of forest lands during the period from 1981 to 2020. <br />Treatment of forest land to increase water yield by about 180,000 acre- <br />feet annually through vegetative management and to improve timber and <br />forage production is recommended. <br /> <br />Urban and Other--Measures, such as diversions, levees and dikes, <br />channel improvement, floodways, and establishment of vegetation were <br />considered for erosion, floodwater, and sediment control in urban and <br />mined areas, and along roadsides, utility rights-of-way, etc. <br /> <br />A total of 182,000 acres of urban and other lands would receive <br />treatment between 1965 and 1980. During the 1981 to 2020 period, <br />510,000 acres would receive treatment. <br /> <br />Flood Control <br /> <br />The Region is subject to severe and sudden floods, with some flood <br />damage occurring every year. Almost all Land sUitable for general devel- <br />opment is subject to some degree of flood damage, either from a defined <br />stream or from overland flow. Average annual flood damages were estimated <br />at $41 million under 1965 conditions of development. <br /> <br />Included in the early action program is 3.1 million acre-feet of <br />floodwater storage which has an estimated cost of $228 million. <br />Multipurpose reservoirs provide 2.1 million acre-feet of the total <br />floodwater storage. The program includes local protection projects con- <br />taining about 273 miles of levees and 586 miles of channel improvements <br />costing about $110 million and land treatment measures on 188,000 acres <br />of cropland costing about $6.3 million. The program includes making <br />maximum use of flood plain management as a means of preventing flood <br />damage. This program would include flood forecasting, zoning, building <br />codes, health regulations, flood prOOfing, and purchase of private lands <br />subject to flooding for open space use. <br /> <br />20 <br />