02-03-2012 BPU RPT 10 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: February 3, 2012 ITEM NO: 10 SUBJECT: CONSTRUCTION OF THE STREETER AVENUE RAILROAD GRADE SEPARATION WATER PIPELINE RELOCATION PROJECT— PHASE I ISSUE: That the Board of Public Utilities consider approval of the capital expenditure in the amount of$940,000 to construct the Streeter Avenue Railroad Grade Separation Water Pipeline Relocation Project— Phase I. RECOMMENDATION: That the Board of Public Utilities approve the capital expenditure of$940,000 for Work Order No. 1111733, which includes all design and construction costs for the Streeter Avenue Railroad Grade Separation Water Pipeline Relocation Project— Phase I. BACKGROUND: The Public Works Department is scheduled to award a contract for construction of the Streeter Avenue Railroad Grade Separation Project(Project) in the summer of 2012. The project will entail lowering Streeter Avenue to create an underpass beneath the existing Union Pacific Railroad tracks. The work will include modifying the surrounding roadways, as well as relocating various underground and overhead utilities. It is anticipated that the Project will enhance safety and provide significant improvements to traffic flow along Streeter Avenue In order to minimize disruptions to water service in this area, the Public Utilities Department (RPU) Water Field Division will perform various water distribution pipeline relocations and service tie-overs in advance of the grade separation project. This initial work will allow a portion of the existing water distribution pipeline in Streeter Avenue to be permanently abandoned, permitting Public Works' Project contractor to excavate the new underpass without affecting water service to the surrounding residential and commercial customers. The second phase of the work will be performed by the Project contractor. That work would require relocation of a portion of an existing 36-inch water transmission main, as well as other miscellaneous pipeline relocations. Staff will request authorization for the second phase of the water relocation work at a future date, after construction bids are received by the Public Works Department. Phase I of the water pipeline relocation work will generally include the construction of approximately 2,600 linear feet of 8-inch ductile iron pipe, five fire hydrants and 22 domestic water services, as well as all other related fittings and appurtenances (Attachment 1). Once the new water pipelines are installed, RPU will be responsible for trench repaving. The trench repaving will be in accordance with Publics Works paving standards. However,the exact scope of the paving work will be specifically defined after the pipeline construction has begun and the actual trench limits are established in the field. A budgetary estimate for the paving work has been included in this authorization.