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<br />" <br /> <br /> <br />I <br />i <br /> <br />~, <br /> <br />vi <br /> <br />, <br />F <br /> <br />, <br />h <br />[" <br />J;-; <br /> <br />~' <br />~ <br />< <br /> <br />, <br />~ <br /> <br />Iii <br />l! <br />I <br />I <br />I <br />;I <br />I <br /> <br />., <br />i <br />.~ <br />'\ <br /> <br />Figure 1. <br /> <br />2. <br />3-10, <br /> <br />CONTENTS <br /> <br />ILLUSTRATIONS <br /> <br />11. <br /> <br />Profi Ie along Hay Gulch (see example 3) showing requi red <br />features for computation of basin slope (S8) and <br />streambed slope (SS) . . , . , <br />Map showing flood-characteristic regions in Colorado <br />Graphs showing: <br />3. Relation of 100-year peak discharge to <br />contributing drainage area and basin slope <br />for the Plains Region <br />4. Relation of 100-year flood depth to streambed <br />slope for the Plains Region. <br />5. Relation of lOa-year peak discharge to <br />contributing drainage area and mean annual <br />precipitation for the Mountain Region . <br />6, Relation of lOa-year flood depth to contributing <br />drainage area and mean annual precipitation <br />for the Mountain Region. . . <br />7. Relation of 100-year peak discharge to contrib- <br />uting drainage area and mean annual precipi- <br />tation for the Northern Plateau Region, <br />8, Relation of 10e-year flood depth to streambed <br />slope for the Northern Plateau Region <br />9. Relation of leO-year peak discharge to contrib- <br />uting drainage area for the Southern Plateau <br />Reg i on. . . <br />10. Relation of 10e-year flood depth to contributing <br />drainage area for the Southern Plateau Region <br />Regression equation reduction factor above specified <br />elevation for foothill streams . . <br />Hypothetical study reach showing points of zero flow and <br />related flood-depth features . <br /> <br />12, <br /> <br />Page <br /> <br />7 <br />8 <br /> <br />12 <br /> <br />13 <br /> <br />14 <br /> <br />15 <br /> <br />16 <br /> <br />17 <br /> <br />18 <br /> <br />19 <br /> <br />31 <br /> <br />35 <br /> <br />~, <br />