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.o <br /> MEMORRn®um 999 <br /> Gary Goodell , <br /> To Operational Planner August 12 , 1961 <br /> „ Curt ParkerFlom , Engineering Tecfinician <br /> Docket #'SU-81-10, Deepe Farm-Flatiron Sand and Gravel Pit <br /> iebNet: <br /> The Public Works Department staff has reviewed the proposed Deepe Farm <br /> Sand and Gravel Operation and has the following comments : <br /> Transoortation <br /> 1. The tragic report that was submitted projects that 93 truck trips <br /> will be generated per day on the average (186 one-way trips per <br /> day) . The ir..pact of the operation on adjacent highway capacity <br /> will be slight, particularly since periods of peak hauling will <br /> not coincide with peak traffic periods. <br /> 2. The secondary access to the gravel pit will be via County Road 51 <br /> (Marshall Rcad) to SR 93. The condition of this roadway and the <br /> impact of heavy haul trucks on it neees to be evaluated further. <br /> 3. The haul road connection to County Road 51 should be paved in the <br /> vicinity of existing residences to mitigate dust problems. . <br /> 4. The City of Boulder should address the transportation impacts <br /> from the operation of trucks north onto Table Mesa Drive. <br /> Fiood:iain Imoacts <br /> 5. As stated in the development report the majority of the site is <br /> protected by a recently constructed flood control berm and <br /> channel so that cniy lands east of the berm will be subject to <br /> 100-year flooding. Excavation in the area east of the berm will <br /> create some temporary storage for flood water enterin; that area, <br /> but will have little overall effect on downstream flood conditions . <br /> The construction and impacts of the flood control berm and channel <br /> were reviewed by the Public Works Department for Docket BAR-79-4 <br /> (a copy of the Public Works Department's comments concerning that <br /> docket is attached) . Care must be taken durino excavation and <br /> reclamation nct to damage or structurally undermine the flood <br /> control berm and channel , including protective riprap (see <br /> attached Section AA) . <br /> Reclamation Plan <br /> E. The propcsed reclamEtion plan shows the majority of the property <br /> except for the proposed lake areas being returned to elevations <br /> wmi <br /> EXHIBIT NO.4 <br />