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<br />I',,) " " '. ') <br />f)i jj~,i}'J <br /> <br />It is estimated that the average annual damages from floods currently <br />amount to almost $100 million. This is in addition to somewhat over $100 <br />million annually which is prevented by control afforded by developments' <br />which are already in place. It is estimated that the damages by floods <br />without additional protection will amount to about $400 million a year by <br />2020. Gully erosion affects about 19,000 acres of land each year and <br />the associated damages amount to about $15 million. Without additional <br />protective measures it is estimated that gully erosion damages will <br />amount to about $50 million a year in 2020. <br /> <br />. <br /> <br />NAVIGATION <br />Navigation development has been underway on the Missouri River be- <br />tween Sioux City and the mouth for several years. At the present time, <br />the channel has not been fully developed for the authorized depth; how- <br />~ver, the channel is used to transport over 2-1/2 million tons of com- <br />mercial traffic and provides about one billion ton-miles of transportation. <br />It is estimated that the future traffic on the river will continue to <br />increase and that by 2020 traffic will be over 3 billion ton-miles. <br />The principle commodity which is being tzansported on the navigation <br />project now, and estimated to be the continued major item of commercial <br />traffic, is agricultural products. <br /> <br />OUTDOOR RECREATION <br /> <br />. <br /> <br />Extensive work was done in the recreation field. Outdoor recreation <br />is oriented around three types; (1) scenic, - both historic and natural, <br />(2) land oriented and (3) water oriented. In connection with the frame- <br />work study, the p,rinciple interest is in that portion of the recreation <br />function which is\water oriented, with some interest in the land oriented <br />part as it may aff~et overall resource development. It is estimated that <br />in the Missouri Ba~in the current projected demand amounts to about 115 <br />million recreation-days. It is anticipated that this will grow to nearly <br />450 million recreation-days by 2020. About two-thirds of this demand is <br />associated with the requirements for residents of the Missouri Basin and <br />about one-third of the projl'lcted demand is for non-residents'. There are <br />currently about 2-1/2 million surface acres of water in the Missouri Basin <br />useful to recreation, and it is estimated that by 2020, 1-1/2 million <br />more acres of water surface will be required. Developed recreational <br />areas currently amount to about 150,000 acres of land and it is estimated <br />that by 2020 approximately 700,000 acres of additional land will be re- <br />quired. Undevel~ped lands with the primary emphasis on use for recrea- <br />tion'and wildlife purposes, amount to somewhat over 1-1/2 million acres <br />of land currently, and it is estimated that future needs for undeveloped <br />recreational lands in the Missouri Basin will amount to 4-1/2 million <br />acres. <br /> <br />FISH AND WILDLIFE <br /> <br />While fishing and hunting are a form of outdoor recreation, they <br />are considered separately because of the different problems involved. <br /> <br />27 <br /> <br />