M-2 20-0487 Motion Approving Change Order No. 5 for $2,769,201 for the Addition of the North Observation Deck and Change Order No. 6 for $5,101,060 for the Addition of the 27-Meter Dive Tower to the Aquatic Center Renovation Project - Hensel Phelps Construction Co. - $7,870,261 - (Commission District 2)