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C50 EQ Basin Project oE AMEfi[CAN <br />No <br />STRUCTUREPOINT <br />INC <br />Preliminary Summary of Sequence <br />• Mobilize, install SWPPP, reroute pedestrian path (to be done <br />by Owner), clear and grub <br />• Dewatering install and initial drawdown <br />• Install utility relocates <br />• Pump station and diversion structure <br />• Outfall structure <br />• CSO 045 EQ Basin <br />• Pumps and mechanical completion <br />• Control building and generator <br />• Bypass and tie-in 96" effluent pipe and manhole <br />• Restoration and demobilize <br />Manpower <br />• 15-25: Operators, Laborers, Carpenters, Pipefitters <br />• Superintendent <br />Key Local Subcontractors <br />• Sweney Electric <br />• Dutchland (Bowen recommends due to space limitations) <br />Equipment Preferences (All Bowen -Owned) <br />• 120 TN Manitowoc Crane <br />• CAT 349 Style Excavator <br />• CAT 930 Wheel Loader <br />• CAT 308 Mini Excavator <br />• CAT 279 Skid Steer <br />• CZM EK 125 Bowen Dewatering Drill Rig <br />• CAT 336 Excavator with Sheeting Hammer Attachments <br />• ICE B4 Sheeting Hammer and Power Pack <br />• Bowen Fleet Dewatering Casings and Pumps <br />Challenges and Risks <br />• Dewatering operations will require a site -specific plan <br />• Maintaining plant flow through bypass operations and <br />utilizing existing site piping <br />• Construction laydown and work zone space <br />• Safely accommodating the public trail <br />Opportunities <br />• Reuse of existing 96" line for normal flow pipeline to eliminate <br />new 96" effluent and manhole - $100-150K savings (see orange <br />markup on following page) <br />• Alternate routing of new 96" effluent line to reduce bypass <br />pumping duration - $100-150K savings (see dark blue markup <br />on following page) <br />• Reorient 96" diversion structure effluent and maintain existing <br />outfall structure - $500-600K savings (see teal markup on <br />following page) <br />• Reduce footprint of excavation of pump station and diversion <br />structure - $150-250K savings (see red markup on following <br />page) <br />• Reorient control building and generator to eliminate 48" reroute - <br />$100-150K savings (see red markup on following page) <br />• Allow abandonment of existing outfall stucture in lieu of <br />complete demolition - $100-150K savings <br />• Allow use of permanent pumps for bypassing pumping operation <br />- $100-150K savings <br />• The above items could reduce the project schedule up to 2 <br />months depending on value engineering items implemented <br />• Bowen will provide a site -specific plan for self -performing <br />dewatering operations based on the recent Clarifier 4 and 5 <br />Project. This will allow the best control of dewatering and allow <br />any unused dewatering costs to be returned to South Bend. <br />• Leverage Bowen's relationship with local unions <br />• Bowen's ability and experience of self -performing the installation <br />of the Dutchland Tank will save project costs and reduce <br />schedule <br />• Bowen has other items that could possibly impact the project <br />schedule and cost, in addition to the above items <br />Recent Relevant Experience <br />• Indianapolis Deep Rock Tunnel Fall Creek CSO Phase 2 and 3 <br />• West Lafayette DeHart CSO Tunnel Storage <br />• Lebanon, IN Booster Station and Dutchland Tank <br />• Lafayette Greenbush CSO Tank Project <br />• IAA Seerley Basin Contract 1A Deicing Tank Project <br />