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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Mr. Bill DeGroot <br />December 18, 1996 <br />Page 4 <br /> <br />6. Approximately 250 cfs of the above flow will be conveyed from the Anderson Ditch <br />to the east side of Foothills, where some spillage could occur to the north. Therefore. about <br />1770 cfs may discharge into the neighborhoods west of Foothills Parkway and north of <br />Highway 36. <br /> <br />7. At most locations immediately north of Highway 36, flow will be 6 inches to 3 feet <br />deep. Hazards can be greater at isolated locations where the flow converges. We have not <br />studied in detail such flows in the neighborhoods north of Highway 36. <br /> <br />A collaborative effort of UDFCD, County, City, CU, CDOT, Open Space, and neighborhood <br />interests is imperative to address the floodplain management issues. Most of these parties <br />(owners of property, structures, infrastructures, and open space; and residents) face flooding <br />hazards and potential damages. The ultimate solution will probably entail a number of <br />improvement components such as land forms and conveyance improvements to lessen <br />South Boulder Creek spills and prevent breaching; measures to improve local drainage that <br />will handle spills; and hazard management to address extreme event spillage, mitigate <br />damage, assist flood proofing, provide hazard awareness, and increase the utilization of <br />flood insurance. <br /> <br />Sincerely, <br /> <br />TAGGART ENGINEERING ASSOCIATES, INC. <br /> <br />Peter L. Nelson, P.E. <br /> <br /> <br />~.Ji?tr) ~ <br /> <br />William C. Taggart, P.E. <br />