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• <br />• <br />Twin Lakes Infrastructure Review & Comparison <br />PIK Terminal Site at Twin Lakes <br />McGough Development <br />RLK Project No. 2007-437-M <br />• Attachment B (Roadway Cost Estimate) <br />o Note 2 indicates an assumption of 10" bituminous, 10" aggregate thickness <br />(seems excessive) for pavement <br />o Note 3 indicates an assumption of 4" bituminous, 16" aggregate thickness <br />(seems excessive) for shoulders <br />o Separate items for bituminous trail and concrete sidewalk are not included <br />o Unit price for trail/sidewalk seems low ($3/st) <br />o Aggregate base/sand not included for sidewalk/trail <br />o Unit price for concrete median seems low ($25/sy) <br />o Unit price for curb and gutter seems low ($10/lf) <br />o Local utilities-watermains should be deleted (no values, included under utilty <br />cost estimate) <br />0 35% contingency includes engineering and administration (should be separate <br />line item?) <br />o Costs for contamination/environmental clean-up is not included <br />o Landscaping enhancement costs are not included (decorative concrete, <br />benches, etc.) <br />o Stormwater ponding costs are not included <br />o Erosion control measures are not included (unless they are included in <br />temporary pavement & drainage). <br />• Attachment B (Concept Sketches) <br />o The table below shows a comparison between the previous design (summer <br />2006) and the design contained within the Twin Lakes AUAR Area <br />Infrastructure Improvements (January 2008) for the intersections relating to <br />the Twin Lakes Parkway construction. Shaded areas (❑ ) indicate items that <br />differ from the previous design. <br />Intersections Previous Design Improvements AUAR Area Infrastructure <br />(Summer 2006) Improvements <br />Janua 2008 <br />County C@ Cleveland None Dedicated westbound right turn <br />lane 14' <br />Cleveland @ Twin 2 northbound left turn lanes (11', 2 northbound left turn lanes (14', <br />Lakes Parkway 10' 12' <br />1 northbound thru lane 11' 2 northbound thru lanes 12', 12' <br />1 northbound shared thru/right turn Dedicated northbound right turn <br />lane 15' lane 14' <br />Cleveland @ County None Dedicated northbound right turn <br />C2 lane 14' <br />