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HomeMy WebLinkAboutItem 8 SCANNED PPP Operations Committee 10-04-17_Bay Bridge Pump Station.pdf Bay Bridge Pump Station and Force Main Replacement, Project 5-67 F�4 Project Setting 7 Newport Beck Bay t P—P to .,h c a1 1 Sblbn 91e 41 I:' p pc I 3 10/4/2017 Existing Pump Station 50 years old and requires... • New pumps t • Electrical upgrades • Odor control improvements • Safety upgrades • Architectural improvements to accommodate future developments Dual Force Mains Crossing Channel 'n a. Similar age as pump station i�/ • Cannot perform a quality assessment ° due to the location beneath the channel • At the end of their useful life • Require both force mains to convey peak flows • Rest of the force main system downstream was recently replaced under project 5-60. • Highly vulnerable to a sewer spill 2 io/a/zov Proposed Area Developments • Back Bay Landing—Mixed Used Residential • The Irvine Company—High end restaurant BACK CONCEPTUAL SITE PLAN °A.aLANDING 3 10/4/2017 �l� 'fir• f • Y i r Y 1. 4V • �� �� �'w - Off_. •wine cau�err i I Proposed Project • New force mains • New pump station at a new location on the Back Bay Landing property • Modifications to existing gravity feed sewers and force mains • Odor control facilities • Demolition and abandonment of existing pump station and Force Mains 4 Pump Station Layout P, Pump Station to Blend with Adjacent Development jaw a 10/4/2017 Odor Control Innovation will Result in Happy Neighbors fG1,h- ,plosi,a Odor Liquid-phase Treatment t _� 10/4/2017 Arcadis is the Most Qualified Firm • The team was more competent and experienced than the 4 competitors • Project understanding and approach was the best • Overall hours were fair and the lowest • Rates are fair and reasonable �mrn- General Manager's Recommendation A. Approve a Professional Design Services Agreement with Aradis US Inc. to provide engineering design services for the Bay Bridge Pump Station and Farce Main Replacement,Project No.5-67,for an amount not to exceed$7,137,000;and B. Approve a contingency of$713,700(10%). 7