Laserfiche WebLink
<br />. <br /> <br />TRIBlJfARY STUDIES <br /> <br />Detailed studies were made to determine discharge-probability <br /> <br /> <br />profiles along two tributary streams in the South Platte basin, <br /> <br />Sand Creek and Boulder Creek, In addition, preliminary studies <br /> <br /> <br />were made to develop a discharge-probability curve for Kiowa Creek <br /> <br />at Wiggins and discharge-probability profiles for Bijou Creek, <br /> <br />These studies are discussed below. <br /> <br />SAND CREEK (INCLUDING TOLL GATE CREEK) <br /> <br /> <br />Discharge profiles for the 500-, 100-, 50-, and 10-year <br /> <br />flood events were developed for Sand Creek from near the Elbert- <br /> <br />Arapahoe County line to the mouth and on East and West Toll Gate <br /> <br /> <br />Creeks from near the Cherry Creek emergency spillway to the mouth, <br /> <br /> <br />These profiles were developed by using the modeling concepts <br /> <br />discussed on pages 54 through 59. A brief description of the basin <br /> <br />and its flood history followed by a detailed discussion of the <br /> <br /> <br />hydrologic development is presented below. A detailed hydrologic <br /> <br />study of Westerly Creek, which is a small left-bank tributary to <br /> <br />Sand Creek, is in progress and will be submitted as a separate report. <br /> <br />Basin Description. Sand Creek is located in the high plains <br /> <br />region southeast of Denver, The headwaters of the stream are <br /> <br />located about 6 miles northeast of Franktown. It flows in a <br /> <br />northwesterly direction to join the South Platte River just north <br /> <br />of Denver, The basin is about 32 miles long with a maximum width <br /> <br /> <br />of about 8,5 miles and a drainage area of 189 square miles, <br /> <br /> <br />Topography varies from sharply to gently rolling, with channel <br /> <br />slopes averaging about 44 feet per mile. Most of the basin is <br /> <br />38 <br /> <br />. <br />