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W A 'C k R E N f k (, 'Y 1_ S S f( RIVERSIDE PUBLIC UTILITIES Board Memorandum P U B L .I C U I :I: L .I.. .I I E S BOARD OF PUBLIC UTILITIES DATE: APRIL 2, 2015 ITEM NO: 9 SUBJECT: CONSTRUCTION OF THE TYLER AND HOLE WATER MAIN REPLACEMENT PROJECT—WORK ORDER NO. 1515502 ISSUE: The item for Board of Public Utilities consideration is approval of the capital expenditure in the amount of $325,000 to construct the Tyler and Hole Water Main Replacement Project. RECOMMENDATION: That the Board of Public Utilities approve the capital expenditure of $325,000 for Work Order No. 1515502, which includes all design, construction, paving, contract administration, inspection and construction contingency costs for the Tyler and Hole Water Main Replacement Project. BACKGROUND: The construction of the Tyler and Hole Water Main Replacement Project is part of Riverside Public Utilities' (RPU) on-going water main replacement program to replace old and high priority leaky mains. The project area consists of existing 12-inch asbestos cement and steel water mains that were installed in 1959 and have required numerous repairs due to leaks over the past several years. Based on their leak history, these water pipelines have been identified as high priorities for replacement to increase system reliability. The Public Works Department (PW) is scheduled to perform a street improvement project which will entail widening Tyler Street in summer 2015. This water main replacement project was developed in close collaboration with PW in order to coordinate the street widening and water main replacements. Based on the leak history and the upcoming paving project, these water pipelines have been identified as high priorities for replacement. The work will generally entail the construction of approximately 560 linear feet of 12-inch ductile iron pipe, two fire hydrants, three service tie-overs, one 4-inch fire service connection, and three system connections, along with all necessary fittings and appurtenances. The work identified will be constructed by the Water Division's field forces. Other than routine service tie-overs, this project is not expected to disrupt service to RPU water customers. Once the new water pipelines are installed, RPU will be responsible for standard trench repaving per the Public Works Department (PW) standard. Given the relatively small size of this project, PW's paving crew will perform the trench base paving following pipe installation. If the work schedule of PW crews is not able to accommodate the pavement work soon after the pipeline installation, staff will solicit paving bids for base paving the trench area from RPU's Paving Contractor Panel. A budgetary estimate for the paving work has been included in this authorization. The final pavement resurfacing will be completed as part of the overall PW street improvement project.