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HomeMy WebLinkAbout9 - Back Bay Science CenterCITY OF NEWPORT BEACH CITY COUNCIL STAFF REPORT Agenda Item No. 9 May 22, 2007 TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: Public Works Department Stephen G. Badum 949 -644 -3311 or sbadum @city.newport- beach.ca.us SUBJECT: BACK BAY SCIENCE CENTER — COMPLETION AND ACCEPTANCE OF CONTRACT NO. 3460 WITH JUNIOR STEEL CO. RECOMMENDATIONS: 1. Accept the work performed and completed by Junior Steel Co. 2. Authorize the City Clerk to file a Notice of Completion. 3. Authorize the City Clerk to release the Labor and Materials bond 35 days after the Notice of Completion has been recorded in accordance with applicable portions of the Civil Code. 4. Release the Faithful Performance Bond 1 year after Council acceptance. DISCUSSION: On February 28, 2006, the City Council authorized the award of 12 trade contracts for construction of the Back Bay Science Center. Three more trade contracts were awarded on August 22, 2006. The total cost of the 15 trade contracts awarded is $4,735,709.00. One of the initial 12 trade contracts awarded was with Junior Steel Co. to furnish and erect the structural steel columns and beams within the buildings' framework. The work encompassed by the contract with Junior Steel Co. is the first of the 15 trade contracts to be completed to the satisfaction of the Public Works Department. As the work of the other trade contractors is completed, similar recommendations for acceptance will be presented to the City Council for consideration, either singularly or in groups. A summary of the Junior Steel Co. cost is as follows: Original bid amount: $86,940.00 Actual amount of bid items constructed: $86,940.00. Total amount of change orders: $38,431.64 Final Junior Steel Co. contract cost: $125,371.64 Back Bay Science Center • Completion and Acceptance of Contract No. 3460 vrith Junior Steel Co. May 22, 2007 Page 2 The 44.2 percent increase in the final contract cost over the original bid amount was primarily attributable to adding the Administration Building to the overall project, which the City Council authorized on January 23, 2007. Four Change Orders were authorized for Junior Steel Co. for a total of $38,431.74 as follows: CO # Description of Work 1 Minor differences between the bid set of plans and the plans approved by the Building Department for permit purposes 2 Refabrication of several columns due to errors in dimensioning; this cost was back charged to the architectural design team 3 Addition of the Administration Building columns and beams 4 Credit for allowance established in the contract as the Construction Manager at Risk contingency was not used. TOTAL Environmental Review: Amount $2,413.23 $9,250.10 $36,768.41 ($10,000) $38,431.74 A Mitigated Negative Declaration was prepared and processed to assess the environmental impact associated with constructing the Back Bay Science Center. Identified mitigation measures have been included in the project design and construction. The California Department of Fish and Game was the lead agency for the environmental review and the documentation was completed in September 2003. Public Notice: Not Applicable. Geotechnical /Survey Services: No geotechnical services were required for the contract with Junior Steel Co. Building height verification was provided by the civil engineering firm of Walden and Associates. Deputy inspection for field welding was provided by the materials testing firm of Harrington Geotechnical Engineering, Inc. Fundinq Availability: Funds for the project were expended from the following account(s): Account Description Account Number Amount Back Bay Science Center 7457- C0310600 $125,371.64 Total: $125,371.64 Back Bay Science Center - Completion and Acceptance of Contract No. 3460 with Junior Steel Co. May 22. 2007 Page 3 All work was completed prior to June 7, 2007, which was the initial overall project construction schedule for completion established by the Construction Manager, Douglas E. Barnhart, Inc. The construction of the Administration Building has resulted in a revised completion date of September 7, 2007. Prepared by: Gall P. Pickart Consulting Project Manager Submitted ,SCepfl�en'l;. Badum Public Works Director