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III IIIIIIIIIIIII III <br /> 999 t <br /> planning divifion <br /> ;o.o box. 471 13th and rpruce meet boulder. colorodo 80306 441-3930 <br /> MEMORANDUM <br /> DATE: February 11, 1980 <br /> TO: Boulder County Planning Commission <br /> FROM: Boulder County Planning Staff <br /> Staff Recommendation RECEIVED <br /> Docket #AR-79-4 - South Boulder Creek <br /> Request: Approval of a special permit for construction of a�N 13 1997 <br /> embankment and channel in the floodplain in the Rur Y <br /> Residential (RR) Zoning District <br /> Location: Approximately z mile east of Colorado 93, '4 @iybbnsLtMwrals&Geology <br /> of the Denver Turnpike and west of South Boulder Creek <br /> Applicant: Flatiron Sand & Gravel Company <br /> DISCUSSION: <br /> This is a request for the construction of an embankment and channel <br /> along the western edge of South Boulder Creek pursuant to the Section XXIV <br /> Special Permits of the Zoning Resolution. The purpose of this request <br /> is : <br /> 1. To provide 100-year flood protection for possible extraction <br /> of sand and gravel reserves located west of the proposed project <br /> 2. To control the flow of the 100-year flood and to minimize <br /> any impact to the flood discharge <br /> The request will affect the floodplain of South Boulder Creek; however <br /> the applicant is not requesting the modification of the floodplain nor <br /> the delineation of the flood regulatory area into storage and floodway <br /> areas. The Public Works Department has noted the the present floodplain <br /> designation will not be amended until such time as the Corps of Engineers <br /> flood study for South Boulder Creek has been completed. <br /> In addition Public Works has noted that proposed dike does not appear <br /> to be a necessary floodplain modification to allow the contemplated use. �tv <br /> The planning staff agrees that the dike is not a regiment for a gravel `� <br /> mining operation. If it is contem lated that the land will be developed <br /> for other uses , it should be understoo that the County is not approving <br /> t e ike as a means of removing the property from the South Boulder <br /> ree oo p gin. <br /> The City of Boulder has noted they have no conflict with the proposal <br /> provided that the additional waters to be carried on the City Open Space <br /> property will not cause substantial damage. Based on their letter from <br />