Change Order No 1 - WWTP Headworks Gate Improvements Project No 117-026 - HRP Construction Inc

Home Browse Search

INTER -OFFICE MEMORANDUM DEPARTMENT OF PUBLIC WORKS DIVISION OF UTILITIES TO: Members of the Board of Public Works Eric Horvath, Director of Public Works Clara McDaniels, Board of Public Works Attorney Linda Martin, Clerk of Board of Public Works FROM: Al Greek, Director of Utilities Jacob M. Klosinski, Assistant City Engineer SUBJECT: Agenda Request Form — Change Order No. 1 117-026 Wastewater Treatment Plant Headworks Influent Gates Improvements DATE: November 5, 2018 The Division of Utilities is requesting the Board of Public Works' approval of Change Order No. 1 for Project No. 117-026 Wastewater Treatment Plant Headworks Influent Gates Improvements. Change Order No. 1 includes the following items: COR #1: Credit for using existing electrical conduits in Primary Tunnel: ($ 2,891.00) COR #2: Credit for changing from cast iron to stainless steel gates: ($348,454.56) Total Change Order No. 1, Net Decrease ($351,345.56) The Original Contract Sum: $966,500.00 Net change by previously authorized Change Orders: $ 0.00 The contract sum prior to this Change Order: $966,500.00 By this Change Order, the project amount is decreased by: $351,345.56 The new Contract Sum including this Change Order: $615,154.44 This Change Order represents a total change of: -36.35% Total change for entire project: -36.35% Explanation of Materials Change from Cast Iron to Stainless Steel Following the project award, the original materials supplier of the cast iron gates refused to sign a purchase order from HRP Construction for the cast iron gate materials. The original supplier submitted a request for increased costs for the cast iron gates which was rejected by the City and the Engineer of Record. HRP Construction submitted a substitution request proposing a change in materials from cast iron to stainless steel. The resulting change accompanied improved lead times for materials and a significant reduction in project costs. The gates were able to be sourced with domestically sourced stainless steel products. With changes in the materials manufacturing market for cast iron products, many United States cast iron manufacturers have exited the market or have been bought by foreign manufacturers. The stainless steel gates are sourced locally in the United States and replacement gates will be more readily available and easier to fabricate in the future. The funding source for the project is Wastewater, Capital Account (642-0630-415-43-66). If there are any questions regarding the subject project, please contact Al Greek (Ext. 4210) at the Division of Utilities or Jacob M. Klosinski (Ext. 9496) at the Division of Engineering.