| OCR Text |
Show The program includes treatment of 15.3 million acres of rangeland during the 1965 to 1980 period and treatment on about 35 million acres between years 1981 and 2020. Forest Land-Programs for development and management of forest land and resources are designed to utilize and maintain or improve the total productive capacity of the land and water, including wood, forage, recreation, wildlife, and water to meet the regional and national needs of the people. Structural and other management and development programs are designed to reduce sheet, gully, and streambank erosion, control peak runoff, and prevent downstream floods. Roads, trails, and other improvements are designed, constructed, and maintained to minimize erosion and sediment yield and deposition. The program includes the treatment of 3»6 million acres of forest land during the 19&5 to I98O period. The demands for forest resources and uses by 2020 will require the treatment and management of about 7.6 million acres of forest lands during the period from 1981 to 2020. Treatment of forest land to increase water yield by about 180,000 acre-feet annually through vegetative management and to improve timber and forage production is recommended. Urban and Other-Measures, such as diversions, levees and dikes, channel improvement, floodways, and establishment of vegetation were considered for erosion, floodwater, and sediment control in urban and mined areas, and along roadsides, utility rights-of-way, etc. A total of 182,000 acres of urban and other lands would receive treatment between 1965 and I98O. During the 1981 to 2020 period, 510,000 acres would receive treatment. Flood Control The Region is subject to severe and sudden floods, with some flood damage occurring every year. Almost all land suitable for general development is subject to some degree of flood damage, either from a defined stream or from overland flow. Average annual flood damages were estimated at §>kl million under 1965 conditions of development. Included in the early action program is 3«1 million acre-feet of floodwater storage which has an estimated cost of $228 million. Multipurpose reservoirs provide 2.1 million acre-feet of the total floodwater storage. The program includes local protection projects containing about 273 miles of levees and 586 miles of channel improvements costing about $110 million and land treatment measures on 188,000 acres of cropland costing about $6.3 million. The program includes making maximum use of flood plain management as a means of preventing flood damage. This program would include flood forecasting, zoning, building codes, health regulations, flood proofing, and purchase of private lands subject to flooding for open space use. 20 |
