01-20-2012 BPU RPT 04 - Laserfiche WebLink

Home

W A T F R E N E k 6 Y L I F F RIVERSIDE PUBLIC UTILITIES Board Memorandum P GLIC: UTILITI E5 BOARD OF PUBLIC UTILITIES DATE: January 20, 2012 ITEM NO: 4 SUBJECT: AWARD OF BID NO. 7025 FOR CONSTRUCTION OF STP PHASE 3—0.5 MILES OF TWIN CIRCUIT fig KV TRANSMISSION LINE ON VINE STREET AND RUSTIN AVENUE WORT{ ORDER NO. 1111059 ISSUE: That the Board of Public Utilities consider approval to award Bid No. 7025 to Herman Weissker, Inc. for construction of Subtransmission Project (STP) Phase 3 in the amount of$585,631. RECOMMENDATIONS: That the Board of Public Utilities: 1. Award a contract to Herman Weissker, Inc., of Riverside, California, for the construction of STP Phase 3 in the amount of$585,631; 2. Authorize staff to issue change orders in an amount up to 20% of the original contract amount of $585,631, or $117,126, due to work complexity and coordination requirements for line terminal }protection commissioning at multiple substations and coordination with Southern California Edison work at Vista Substation; and 3. Authorize the City Manager, or his designee, to prepare and execute all necessary documents. BACKGROUND: The STP is needed to resolve critical infrastructure and capacity deficiencies in the eastern part of the RPU fig kV sub-transmission network. The City Council adopted the STP Mitigated Negative Declaration [MND] and Mitigation Monitoring and Reporting Plan and approved the project at an estimated cost of$26,000,000 at their meeting on September 22, 2009. To date, $24 million has been budgeted for this project. As of November 30, 2011, the available funds less costs and encumbrances are $11,901,263. The project is estimated to be 60% complete. The STP includes the construction and reconstruction of 4,8 miles of twin circuit transmission lines and is being constructed in phases. Preliminary work at Hunter Substation that rearranged and reconstructed 0.3 miles of twin 69 kV transmission lines was completed in February 2010. Phase 1 that constructed 1.3 miles of twin circuit fig kV overhead transmission lines with related 12 kV and 4 kV distribution lines from Tenth Street at Commerce Avenue to Twelfth Street at Chicago Avenue was completed in February 2011. Phase 2 work included the relocation and reconstruction of twin circuit 69 kV transmission lines and several fiber optic lines between Riverside Substation(located at Ninth and Vine Streets)and Eleventh Street west of SR91 is in progress. This work is being constructed concurrently with the relocation and reconstruction of twin circuit 69 kV transmission lines and related 33 kV and 4 kV circuits on Vine Street and along both sides of SR91 between Eleventh and Fifteenth Streets as part of the Caltrans 91 HOV Project(Work Order No. 1022588). The ongoing work is scheduled for completion in January 2012. STP Phase 3,which is considered in this Board action, includes construction of 0.5 miles of twin circuit 69kV transmission line in three segments: Segment A.1 constructs new twin circuit line from Santa Fe Avenue and Ninth Street west to Riverside Substation located at Ninth Street and Vine Street and east along Ninth Street and south on Commerce Street to Tenth Street to connect to the twin circuit 69kV lines constructed during STP Phase 1 to the existing Hunter-Riverside and Vista-Freeman 69kV transmission lines (the lines are rearranged to form Hunter-Riverside and Vista-Riverside#3 69kV transmission lines).