09-18-2015 BPU RPT 08 - Laserfiche WebLink

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W A I: R E V E 12 L. Y CITY OF RIVERSIDE RIVERSIDE PUBLIC UTILITIES lad Board Memorandum P U B L I C U T I L I T I E S BOARD OF PUBLIC UTILITIES DATE: SEPTEMBER18, 2015 ITEM NO: 8 File ID — 15 -2973 — D SUBJECT: CONSTRUCTION OF THE MAGNOLIA AVENUE TECHITE PIPE REPLACEMENT PROJECT — AWARD OF BID NO. RPU -7346 — WORK ORDER NO. 1406072 FOR $906,000 ISSUE: The issue for Board of Public Utilities consideration is approval of a contract award for the construction of the Magnolia Avenue Techite Pipe Replacement Project, Bid No. RPU -7346. RECOMMENDATIONS: That the Board of Public Utilities: 1. Award a contract for the construction of the Magnolia Avenue Techite Pipe Replacement Project — Bid No. RPU -7346 to the lowest responsive bidder, Trautwein Construction, Inc. of Riverside, California in the amount of $621,921; and 2. Approve a capital expenditure of $906,000 for Work Order No. 1406072, which includes all design, construction, paving, contract administration, inspection and construction contingency costs for the Magnolia Avenue Techite Pipe Replacement Project, Bid No. RPU -7346. BACKGROUND: In May 2014, Riverside Public Utilities' (RPU) field crews responded to a report of a water leak in Magnolia Avenue near the intersection of Dawes Street. Upon further investigation, the field crews determined that the leak was originating from an existing 36 -inch water transmission pipeline. This transmission pipeline feeds Kaiser Hospital and the surrounding region. The pipeline is made of fiberglass reinforced plastic, also known as Techite pipe. Due to the difficulty of repairing this type of material, field crews installed a clamp around the damaged section of the pipeline to control the leak until the pipeline could be replaced. It was initially believed that the leak was caused by a contractor in the area who was installing a storm drain pipeline. However, the evidence was inconclusive. Due to the size of this pipeline and the number of conflicting utilities within Magnolia Avenue, this project will require taking the existing transmission main out of service so that it can be removed and replaced between the nearest segments of existing Cement Mortar Lined and Coated (CML &C) Steel pipe. In order to ensure sufficient water supply to the region, two pressure reducing stations (PRS) have been replaced. The first is the Cook PRS that was included in the Cook Booster Station project, approved by the Board of Public Utilities (Board) on July 18, 2014. The second is the La Sierra PRS, which was approved by the Board on April 2, 2015. The work of this project will generally entail the construction of approximately 1,200 linear feet of 36 -inch (CML &C) steel pipe and two system connections, along with all necessary fittings and appurtenances. The shutdown for this project is planned to occur during the winter season, starting in January 2016. This project is not expected to disrupt service to RPU water customers.