Change Order No 1 - 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 Eric Horvath, Director of Public Works Clara McDaniels, Assistant City Attorney Public Works Kara Boyles, City Engineer Linda M. Martin, Clerk FROM: Jacob M. Klosinski, Assistant City Engineer SUBJECT: 117-108 Airport Annexation Area Sanitary Sewer Extenstion Change Order No. 1 DATE: June 18, 2019 The Department of Public Works and Division of Engineering request the Board of Public Works approval of Change Order No. 1 for Project No. 117-108 Airport Annexation Sanitary Sewer Extension. Purpose for Chan e Order No. 1 During construction, four (4) fire hydrants were identified without restrained fittings between the fire hydrant and their respective isolation valves. The cost for hydro excavation, temporary removal of the fire hydrant, and the replacement of eight (8) restrained fittings resulted in an increased cost of $1,800.00 per fire hydrant for a total of $7,200.00 for the additional scope of work. It is important to note that the water main installed in this area was installed around 2004 and should have been installed with restrained water main pipe joints. This water main provides fire protection along US 20 west of Pine Road and into the Terre Verde subdivision where municipal water service is provided. Given the installation method of the fire hydrants on US 20, the remaining hydrants in the Terre Verde Subdivision likely to have unrestrained joints and should eventually be outfitted with restrained joints between the isolation valve and the fire hydrant. Funding for this Change Order should be allocated from the 2018 TIF River West — Airport Account (324-1050 460 ' 1-0 ,). For questions regarding the above recommendation or the subject project, contact Jacob M. Klosinski (Ext. 9496) at the Division of Engineering.