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HomeMy WebLinkAboutITEM II-F AGENDA BILL APPROVAL FORM Agenda Subject:Date: Change Order No. 1 to Contract 09-01 June 29, 2009 Department:Attachments:Budget Impact: Budget Status Sheet, Public WorksVicinity Map, Exhibit A$ 0 Administrative Recommendation: City Council approve Change Order No. 1 in the amount of $173,777.40to Contract 09-01 with R. L. Alia Company for work on project CP0762, Les Gove Neighborhood Improvement Project – Phase 1. Background Summary: Project Description: The purpose of this project is to perform road maintenance as part of the SOS Program, including pavement overlays and pavement rehabilitation, and in conjunction with this, to replace and improve the water, sanitary sewer and storm system infrastructure in the neighborhood. The project includes: • Pavement patching and providing a thin asphalt overlay on approximately 1.3 miles of local roads and rehabilitation of the pavement section on approximately 0.5 mile of local roads. • Construction of approximately 1.2 miles of 8-inch ductile iron water mains, replacing existing deteriorating 4-inch and 6-inch water mains. • Removal and replacement of approximately 0.5 mile of deteriorating sanitary sewer pipes. • Construction of approximately 0.3 mile of new 12-inch to 24-inch storm pipe. Change Order Description: This change order is for the construction of an 8-inch ductile iron water main on F Street SE, beginning at thth 5 Street SE and ending approximately 150 feet south of the intersection of 8 Street SE and F Street SE. Improvements include the new water main, abandoning the existing water main, and constructing a new pavement section over the new water main. The existing 6-inch cast iron water main on F Street SE is in poor condition. The replacement of the F Street SE water main was scheduled to occur during the F Street SE Roadway Improvement Project, after the M Street Grade Separation Project. However, the construction work associated with the Les Gove project has resulted in 4 known water main leaks in the F Street SE water main within a 3 week period in June. This has caused staff to evaluate whether the existing water main will withstand both the future work of the Les Gove projects and the M Street Grade Separation detour route traffic. Because of the current leaking and the likelihood of future leaks and/or breaks in the next several years, staff is recommending that the F Street SE water main be replaced at this time. Exhibit A shows the approximate scope of work for this change order. For 2009, an overall project budget contingency of $91,785 remains in the 430 Water fund after this change order. W0706-7 Reviewed by Council & Committees:Reviewed by Departments & Divisions: Arts Commission COUNCIL COMMITTEES: Building M&O Airport Finance Cemetery Mayor Hearing Examiner Municipal Serv. Finance Parks Human Services Planning & CD Fire Planning Park Board Public Works LegalPolice Planning Comm. OtherPublic Works Human Resources Action: Committee Approval: Yes No Council Approval: Yes NoCall for Public Hearing___/___/____ Referred to _________________________________ Until ____/___/____ Tabled ______________________________________ Until___/___/____ Agenda Subject:Date: Change Order No. 1 to Contract 09-01 June 29, 2009 Councilmember:Staff: Wagner Dowdy Meeting Date:Item Number: : July 6, 2009 2 of 2 Page å  û å  ú