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<br />City of Colorlldo Springs Flood Hllzard Mitiglltion Pllln <br /> <br />plain. Two tributaries to Sand Creek are Sand <br />Creek East Fork and Sand Creek Center <br />Tributary. <br /> <br />Shooks Run is divided into two separate and <br />distinct reaches. There are North Shooks Run <br />(Templeton Gap Drainage Basin) and South <br />Shooks Run. <br /> <br />The Templeton Gap Drainage Basin (North <br />Shooks Run) originates in northeastern Colo- <br />rado Springs in a cup-like depression, sur- <br />rounded by hills. It flows southwesterly along <br />and parallel to Templeton Gap Road, until it <br />is intercepted by the Templeton Gap Flood- <br />way and is diverted northwesterly to Monu- <br />ment Creek. South Shooks Run begins at the <br />Templeton Gap Floodway and runs parallel to <br />Templeton Gap Road for five miles to join <br />Fountain Creek near the southern corporate <br />limits, approximately 0.25 mile east of D,S. <br />Highway 85-87. The stream originates in a <br />residential area and throughout its course <br />flows through residential or business areas. <br /> <br />I <br />< <br /> <br />Spring Creek originates in east-southeastern <br />Colorado Springs, flows southwesterly, and <br />joins Fountain Creek near Janitell Road <br />Crossing. The creek divides into two definite <br />streams near Airport Road (Spring Creek and <br />Spring Creek East Fork). The Spring Creek <br />valley is relatively wide in the northern two- <br />thirds of the basin, becoming deep and narrow <br />in the lower one-third. Long reaches of Spring <br />Creek are concrete lined in industrial and <br />commercial areas. Spring Creek also flows <br />through a lake on Valley Hi Golf Course, <br /> <br />The Templeton Gap Floodway originates near <br />Acacia Drive and Templeton Gap Road and <br />diverts North Shooks Run into Monument <br />Creek. <br /> <br />Physiographically, the area of Monument and <br />Fountain Creeks is characterized by gently <br />sloping plains, mountain ranges and basins. <br /> <br />There are some horiz~ntal sedimentary out- <br />crops in the Black Forest which represent rock <br />formations from the Rocky Mountain uplift <br />over 60 million years ago. Exposed sedimen- <br />tary rocks along the edge of the mountain <br />front are tilted. Above the sedimentary foot- <br />hills the pre-Cambrian mountain core is <br />largely of Pikes Peak granite. <br /> <br />What is a 100 Year Flood? <br /> <br />The science of predicting the effects of floods <br />on lives and property falls largely UpOli hy- <br />drologists. They estimate future floods by <br />studying the past behavior of a stream. <br />Floods are often categorized according to their <br />return interval e.g, 10-50-100-year flood. <br />Each flood interval is related to a percent <br />chance that a flood may actually occur within <br />a given year. <br /> <br />This has caused considerable confu- <br />sion at times: - A l00-year flood does <br />not happen with absolute regularity <br />every 100 years. Rather, a 100-year <br />flood may occur at any time within any <br />given year. ColoratkJ state law, how- <br />ever, requires that the 100-year flood- <br />plain be used for land use regulation, <br />as the floodplain concept provides a <br />national standard for the National <br />Flood Insurance Program. It is criti- <br />cal, however, for floodplain residents <br />to remember that floods greater than <br />the standard 100-year flood event may <br />occur at any time and may also exceed <br />projected estimates designated by the <br />100-year floodplain boundary. <br /> <br />Types of Floods: <br /> <br />Floods may occur on riverine systems. Com- <br />monly, a river basin is fed by a hierarchical <br /> <br />5 <br />