04-02-15 BPU RPT 13 - Laserfiche WebLink

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W A T E R E N E R G Y I. i F F RIVERSIDE PUBLIC UTILITIES N Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: APRIL 2, 2015 ITEM NO: 13 SUBJECT: MAGNOLIA 4 KV TO 12 KV UNDERGROUND CONVERSION —WORK ORDER NO. 1411795 ISSUE: The issue for Board of Public Utilities consideration is approval of the capital expenditure of $2,250,000 for Work Order No. 1411795 for Magnolia area 4 kV to 12 kV underground conversion. RECOMMENDATION: That the Board of Public Utilities approve the estimated capital expenditure of $2,250,000 for Work Order No. 1411795 for the Magnolia areas 4 kV to 12 kV underground conversion. BACKGROUND: The Electric System Master Plan (ESMP) recommends the conversion of all remaining 4 kV to 12 kV distribution infrastructure to improve system capacity and reliability. This work order is an important step in that conversion and the preparation to decommission Magnolia substation at Central Ave.at the 91 freeway. The work will upgrade facilities near Central Ave between Riverside Ave. and Victoria Ave. The work includes conversion of three 4 kV circuits to 12 kV, and includes installation of approximately 2,035 trench feet of conduit, installation of 2,444 circuit feet of new primary and secondary cable and the removal of 2,320 circuit feet of primary cable. The scope also includes installation of one new pad- mounted switch, four new pad-mounted junction cabinets, replacement and upgrade of seven pad- mounted transformers, and related underground distribution facilities. Riverside Public Utilities (RPU) engineering staff performed the design to eliminate any negative visual impacts to the project and surrounding area, with sensitivity to the existing neighborhood, and within City Planning guidelines for the designated area of the project. The project breakdown is proposed as follows: Project Breakdown Engineering Performed By: RPU engineering staff Civil Construction Performed By: Contractor (Formal Bid Pending) Electrical Work Performed By: RPU field forces Anticipated Start Date: June 1, 2015 Anticipated Duration: 17 weeks Coordination Required With: PW Inspector, Contractor, RPU Field Superintendent Reimbursements: None FISCAL IMPACT: The capital expenditure for Work Order No. 1411795 is estimated to be $2,250,000 as summarized in the following table: