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Pipeline Segment 3 Alignment <br /> The Monaghan Road alignment for Segment 3 was selected over the Hudson Road corridor, <br /> because the Hudson Road corridor would have required four more miles of pipeline and <br /> three additional special crossings. In addition,the Monaghan Road alignment is shorter <br /> than the Hudson alignment for Segment 3.The E-470 alignment for Segment 3 was <br /> eliminated due to the costly ROW acquisitions it would require. Refer to Figure 8 below for <br /> an overview of the selected Segment 3 alignment along Monaghan Road. <br /> Portions of the selected pipeline alignment are within the City municipal limits and portions <br /> are outside,in Arapahoe County.There is no improved roadway along the corridor,but the <br /> corridor can be accessed at Jewell Avenue,Yale Avenue and Quincy Avenue. A short <br /> section of a two-lane roadway along Monaghan Road between Hampden Avenue and <br /> Quincy Avenue provides access to a State of Colorado Correctional Facility.Monaghan <br /> Road is designated as a principal arterial in the City's Northeast Area Transportation Study, <br /> providing adequate widths for the pipeline construction(144 feet of ROW). <br /> This alignment avoids a problematic high-point in the hydraulic profile of the pipeline that <br /> was included in an earlier alternative.In addition,the selected alignment is preferred <br /> because it enters the ARWPF site from the north and west,closer to the raw water forebay, <br /> rather than from the north and east. <br /> The Monaghan road alignment was also selected to avoid utility conflicts.Overhead power <br /> lines and buried fiber-optic lines must be crossed,but do not pose significant construction <br /> conflicts.Powhaton Road is also now being evaluated as an alternative to the Monaghan <br /> Road alignment,with the potential to save approximately 8000 linear feet of pipe length. <br /> Powhaton Road was originally excluded from consideration because the City was reserving <br /> that corridor for future water distribution lines. <br /> Required Easements and ROW <br /> At the north end of the Segment 3 corridor,the proposed alignment follows property lines <br /> east of PS-3 toward the Monaghan Road corridor. Rights-of-way for local collector streets <br /> along these property lines are approximately 74 feet wide.A 10-foot-wide temporary <br /> construction easement will be needed for the typical pipe alignment along the western half <br /> of the future Monaghan Road ROW,which is also only 74 feet wide.A minimum width of <br /> 80 feet will generally be provided for construction contractor working limits. <br /> Quincy Avenue has a 110-foot wide ROW and an additional 100-foot wide ingress/egress <br /> easement north and south of the centerline,which includes some existing buried telephone <br /> utilities.The 60-inch PWP pipeline and will be located along the north side of the roadway <br /> within the 100-foot ingress/egress easement,which will provide adequate construction <br /> width. In addition, the City of Aurora owns Sections 4 and 9 that adjoin this section of <br /> Quincy Avenue to the north and south of the alignment. <br /> South of Quincy Avenue,the PWP pipeline alignment is within Aurora Water-owned <br /> property (the former Murphy property)located between a City-owned 40-foot-wide access <br /> easement for the ARWPF and Powhaton Road to the west. <br /> 20 <br />