05-01-15 BPU RPT 07 - Laserfiche WebLink

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W t is Li,� r R 9y Lau' i'-: RIVERSIDE PUBLIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: MAY 1, 2015 ITEM NO: 7 SUBJECT: CONSTRUCTION OF THE RIVERSIDE AIRPORT WATER MAIN REPLACEMENT PROJECT—WORK ORDER NO. 1510133 ISSUE: The item for Board of Public Utilities consideration is approval of the capital expenditure in the amount of $826,000 to construct the Riverside Airport Water Main Replacement Project. RECOMMENDATION: That the Board of Public Utilities approve the capital expenditure of $826,000 for Work Order No. 1510133, which includes all design, construction, paving, contract administration, inspection and construction contingency costs for the Riverside Airport Water Main Replacement Project. BACKGROUND: The construction of the Riverside Airport 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 4-inch, 6-inch, and 8-inch cast iron water mains that were installed in the late 1920's, 1950's and early 1960's. The project will involve abandoning approximately 5,800 linear feet of existing water pipelines located within the Riverside Municipal Airport (RMA) that are in conflict with recent and planned expansions at RMA. In addition, several existing fire hydrants located along the taxiway will be relocated to the edge of RMA property to eliminate obstructions. The work will generally entail the construction of approximately 2,020 linear feet of 12-inch ductile iron pipe, 14 fire hydrants, 24 service tie-overs, five 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 in the street areas per the Public Works Department (PW) standard. Staff will solicit bids for paving the trench area from RPU's Paving Contractor Panel. A budgetary estimate for the paving work has been included in this authorization. The project breakdown is as follows: Project Breakdown: Engineering Performed By: RPU Engineering staff Construction Performed By: RPU Field Forces Anticipated Start Date: June 2015 Anticipated Duration: ■ 3 months ■ RPU Field Forces Coordination Required With: ■ Public Works ■ Riverside Municipal Airport Reimbursements: None