10-04-2013 BPU RPT 07 - Laserfiche WebLink

Home

W A T E N E N E RIVERSIDE PUBLIC UTILITIES Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: October 4, 2013 ITEM NO: 7 SUBJECT: BID NO. 7166 - AWARD OF CONTRACT FOR CONSTRUCTION OF SUBTRANSMISSION PROJECT PHASE IV — CONSTRUCTION OF 2.3 MILES OF TWIN CIRCUIT 69 KV TRANSMISSION LINES IN THE VICINITY OF UCR AND RECONFIGURING 3 SPANS OF TWIN CIRCUIT 69 KV TRANSMISSION LINES ON RUSTIN AVENUE — WORK ORDER NO. 1111059 ISSUE: The item for Board of Public Utilities consideration is approval to award a contract for the Subtransmission Project (STP) Phase IV, Bid No. 7166. RECOMMENDATIONS: That the Board of Public Utilities: 1. Approve the award of a contract for the construction of STP Phase IV, Bid No. 7166, to Dahl, Taylor & Associates Constructors Incorporated, of Santa Ana, California in the amount of $2,576,101.60; and 2. Authorize staff to issue change orders in an amount up to 15% of the original contract amount of $2,576,101.60 or $386,415.24 due to the complexity of the work and coordination issues related to reconfiguring the transmission lines at multiple substations including SCE's Vista Substation. BACKGROUND: The City's peak electrical demand has increased by 40% since the last major improvement to the 69 kV electrical subtransmission network in 1996. The network provides a means of conveying power between substations and it has kept up with the demand; however, it has been subject to severe overloads during peak demand periods that could cause loss of power to large areas of the City. The proposed Riverside Transmission Reliably Project (RTRP) and the Subtransmission Project (STP) will resolve the overall reliability concerns. In the long term, the RTRP will provide a second interconnection with Southern California Edison and will bolster the network in the western part of the system. In the near term, the STP will resolve the critical infrastructure and capacity deficiencies in the eastern part of the system. On September 22, 2009, the City Council adopted the STP Mitigated Negative Declaration and Mitigation Monitoring and Reporting Plan and it approved the STP. On November 6, 2009, the Board of Public Utilities approved a total of $24,000,000 for the project which included all estimated costs for completion of the STP including project management, transmission and substation design, procurement and construction, right of way acquisitions, construction management, contingencies, inspection and interest. Coordinating construction of the STP with other utilities, agencies, projects and easement acquisitions made it necessary to construct the STP in phases. The initial work reconfigured the 69 kV transmission lines in the vicinity of Hunter Substation on Chicago Avenue south of Columbia Avenue; constructed a double circuit 69 kV transmission line from Commerce Street at Tenth Street to Chicago Avenue at Twelfth Street; relocated and reconfigured the 69 kV transmission lines in the vicinity of Riverside Substation along Vine Street between Ninth and Eleventh Streets; constructed a double circuit 69 kV transmission line from Riverside Substation, east along Ninth Street and south along Commerce Street