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HomeMy WebLinkAbout04 - Storm Drain CDS Unit NOC C-4915SEW PpQT CITY OF NEWPORT REACH °9 o City Council Staff Report Agenda Item No. 4 March 26, 2013 TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: Public Works Department David A. Webb, Public Works Director 949 - 644 -3311, dawebb(c newportbeachca.gov PREPARED BY: Fong Tse, Principal Civil Engineer 9449- 644- 3,321, ftse(a)newportbeachca.gov APPROVED: ,((_ TITLE: Storm Drain CDS Unit Construction — Notice of Completion and Acceptance of Contract No.4915 ABSTRACT: On June 12, 2012, City Council awarded Contract No. 4915, Storm Drain CDS Unit Construction, to Palp Inc. (dba Excel Paving Company), for the total bid price of $261,456.00, plus approximately 15 percent for construction contingency allowance. The required work is now complete and staff requests City Council acceptance and close out of the contract. RECOMMENDATIONS: 1. Accept the completed work and authorize the City Clerk to file a Notice of Completion. 2. Authorize the City Clerk to release the Labor and Materials Bond 65 days after the Notice of Completion has been recorded in accordance with the applicable portions of the Civil Code. 3. Release the Faithful Performance Bond one year after Council acceptance. FUNDING REQUIREMENTS: Funds for the construction contract were expended from the following accounts: 1 Storm Drain CDS Unit Construction — Notice of Completion and Acceptance of Contract No.4915 March 26, 2013 Page 2 Account Description General Fund Measure M Competitive Total Construction Cost: DISCUSSION: Account Number 7012- C2502010 7284- C2502010 Amount $133,132.23 $157,950.00 $291,082.23 In the past, the open air bioswale along the easterly side of Newport Boulevard southerly of 15th Street was routinely covered by debris from heavy storm flows. The extent of litter would at times also clog the storm drain outlet pipe causing localized flooding on northbound Newport Boulevard. These events caused extra work for City field crews and traffic interruptions for the traveling public. As such, staff applied for and secured Measure -M grant funding from the Orange County Transportation Authority (OCTA) to offset the cost of installing two Continuous Deflection Separator (CDS) trash and debris interceptors to proactively trap and remove drainage flow debris. One CDS was installed in the ground next to the Municipal Operations Corporation Yard transfer station. The other unit was installed in the easterly slope of Newport Boulevard just south of 15`h Street. These units will not only capture the street litter before reaching the Newport Boulevard bioswale, but will also improve water quality in the Bay and minimize Newport Boulevard traffic flow interruptions during heavy storms. The contract has now been completed to the satisfaction of the Public Works Department. Overall Contract Cost/Time Summary Awarded Final Cost at Contingency Actual % Due to % Due to Contract Amount Completion Allowance Contract Directed Unforeseen Change Change Change $261,456.00 $291,082.23 15% or less +11.3% 0% 11.3% Allowed Contract Time (days) 89 Actual Time 14 IE Under ( -) or Over ( +) A summary of the contract cost is as follows: Original bid amount: Actual cost of bid items constructed: Contract change orders: Final contract cost: $ 261,456.00 $252,056.00 $ 39,026.23 $291,082.23 2 Storm Drain CDS Unit Construction — Notice of Completion and Acceptance of Contract No.4915 March 26, 2013 Page 3 The final contract cost was 11.3 percent above the original contract amount. This extra contract cost was due to the substantial unforeseen field conditions encountered during construction including soil stability issues, buried debris and unknown underground water flows that required additional foundation and site work to install the unit. A summary of the project schedule is as follows Estimated Completion Date per July 2012 Baseline Schedule: November 21, 2012 Project Awarded for Construction: June 12, 2012 Number of Additional Approved Work Days: 29 Completion Date from Award with Approved Extensions: January 29, 2013 Actual Substantial Construction Completion Date: January 8, 2013 ENVIRONMENTAL REVIEW: Staff recommends the City Council find this project exempt from the California Environmental Quality Act ( "CEQA ") pursuant to Section 15302(c) (Construction resulting in no expansion of facility capacity) of the CEQA Guidelines, California Code of Regulations, Title 14, Chapter 3, because it has no potential to have a significant effect on the environment. NOTICING: This agenda item has been noticed according to the Brown Act. In addition, the City Clerk will be filing a Notice of Completion for the project as a result of this action. Submitted by David A. Webb Public Works Director Attachment: A. Location Map 3 LOCATION MAP STORM DRAIN CDS UNIT CONSTRUCTION CONTRACT NO. 4915 i Q PROJECT LOC ATIONS ,o. ��H 5 ITA OA„ /