Change Order No 3 & PCA - Airport Annexation Area Sanitary Sewer Extension Proj No. 117-108 - HRP Construction, Inc.

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INTER -OFFICE MEMORANDUM DEPARTMENT OF PUBLIC WORKS DIVISION OF ENGINEERING TO: Members of the Board of Public Works Clara McDaniels, Assistant City Attorney Public Works Linda M. Martin, Clerk FROM: Jacob M. Klosinski, Assistant City Engineer SUBJECT: 117-108 Airport Annexation Area Sanitary Sewer Extension Change Order No. 3 DATE: August 3, 2020 The Department of Public Works and Division of Engineering request the Board of Public Works approval of Change Order No. 3 for Project No. 117-108 Airport Annexation Sanitary Sewer Extension. Purpose for Change Order No. 3 Item 10: Mulched Seeding, Type R (Original, 6,000.00 SYS) Previously Adjusted Quantity: 7,500.00 SYS (+1,500.00) +$18,000.00 (Change Order 2) Adjusted Quantity: 9,835.00 (+2,335.00) +$28,020.00 (Change Order No. 3) Notes: Total Overrun, Increase 3,83,5.00 SYS, Total Increase Cost $46,020.00 Total Increase in cost for Change Order No. 3 = $28,020.00 Comment: The overrun quantity claimed by contractor exceeded the plan quantity. Original estimate of quantities was low and final numbers are adjusted for actual quantity of seeding area installed and in place. Change Order No. 3 Summary Total (inclusive of debits noted above) Original: $766,957.00 Increases per previous Change Orders: $129,382.52 (+16.87%) Total Project Cost prior to CO#3: $896,339.52 (+16.87%) Increase for Change Order No. 3: $ 28,020.00 (+3.65%) Current Project Cost: $924,359.52 (+20.52%) Funding for this Change Order should be allocated from TIF River West — Airport Account (324- 1050-460-31-02) or transferred from the TIF River West Account to the Sewage Works Capital Account 641-0630-415-43-66. (DFO PO-0000076) For questions regarding the above recommendation or the subject project, contact Jacob M. Klosinski (Ext. 9496) at the Division of Engineering.