08-07-2015 BPU RPT 13 - Laserfiche WebLink

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sY A I R E N E R L Y I I F F J- RIVERSIDE PUBLIC UTILITIES Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: AUGUST 7, 2015 ITEM NO: 13 File ID — 15 -2462 — D SUBJECT: CONSTRUCTION OF THE DWIGHT AVENUE WATER MAIN REPLACEMENT PROJECT — WORK ORDER NO. 1511174 FOR $1,930,000 ISSUE: The issue for Board of Public Utilities consideration is to approve a capital expenditure in the amount of $1,930,000 for Work Order No. 1511174 to construct the Dwight Avenue Water Main Replacement Project. RECOMMENDATION: That the Board of Public Utilities approve a capital expenditure of $1,930,000 for Work Order No. 1511174, which includes all design, construction, paving, contract administration, inspection and construction contingency costs for the Dwight Avenue Water Main Replacement Project. BACKGROUND: The construction of the Dwight Avenue Water Main Replacement Project is part of Riverside Public Utilities' (RPU) ongoing water main replacement program to replace old and high priority leaky mains. The project area consists of existing 4 -inch, 6 -inch and 8 -inch cast iron and steel water mains that were installed between 1927 and 1951 and have required numerous repairs due to leaks over the past several years. Based on their leak history, age and size, these water pipelines have been identified as high priorities for replacement to increase system reliability and increase fire flow. The work will generally entail the construction of approximately 4,575 linear feet of 8 -inch, 1,200 linear feet of 12 -inch and 100 linear feet of 6 -inch ductile iron pipe, 17 fire hydrants, 132 service tie - overs, and 15 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) standards. Staff will solicit paving bids for resurfacing the trench area from RPU's Paving Contractor Panel. A budgetary estimate for the paving work has been included in this authorization. Staff has coordinated with PW regarding the allowable working hours for the project. Most of the work will occur during normal daytime working hours. However, the work occurring within University Avenue will occur at nighttime to minimize disruptions to motorists during peak travel times along this major arterial roadway.