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HomeMy WebLinkAbout07 - CdM Water Transmission Main PipelineTO: FROM PREPARED BY: PHONE: TITLE: CITY OF NEWPORT BEACH City Council Staff Report August 12, 2014 Agenda Item No. 7. HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL David A. Webb, Public Works Director- (949) 644 -3330, dawebb @newportbeachca.gov Patrick Arciniega, Senior Civil Engineer (949) 644 -3347 Corona del Mar Water Transmission Main Pipeline Improvements - Notice of Completion and Acceptance of Contract No. 4603 (CAP11 -0019) ABSTRACT: On January 22, 2013, City Council awarded Contract No. 4603, Corona del Mar Water Transmission Main Pipeline Improvements project to T.E. Roberts Inc., for a total contract cost of $4,402,750.00 plus $440,275.00 allowance for contingencies. The required work is now complete and staff requests City Council acceptance and close out of the contract. RECOMMENDATION: a) Accept the completed work and authorize the City Clerk to file a Notice of Completion for the project; b) Authorize the City Clerk to release the Labor and Materials Bond 65 days after the Notice of Completion has been recorded in accordance with applicable portions of the Civil Code; and c) Release the Faithful Performance Bond one year after acceptance by the City Council. FUNDING REQUIREMENTS: Funds for the construction contract were expended from the following accounts: Account Description Account Number Amount Water Enterprise Fund 7511- C6002008 $3,652,813.96 Water Enterprise Replacement 7511- C6001000 $1,143,987.60 Total: $4.796,801.56 DISCUSSION: Overall Contract Cost /Time Summary Awarded F Final Cost at C Contingency % % Due to % % Due to Contract Amount C Completion A Allowance Contract D Directed U Unforeseen The work necessary to complete this contract included constructing a new 30 -inch water main from the existing 30 -inch main in Pacific View Drive, down the recommended alignment to the existing 30 -inch main at the intersection of East Coast Highway and MacArthur Boulevard. The project also included constructing a new 24 -inch transmission main on Carnation Avenue between East Coast Highway and Bayside Drive. In addition to the new pipeline work, the project relocated the City's current pressure regulator structure that joins with the Metropolitan Water District's CM -1 system connection, currently located in East Coast Highway at Fernleaf Avenue to a new location that is out of the Coast Highway right -of -way and onto Dahlia Avenue. The contract was completed to the satisfaction of the Public Works Department. A summary of the contract cost is as follows: Original bid amount: $4,402,750.00 Actual cost of bid items constructed: $4,387,710.00 Total change orders: $ 409,091.56 Final contract cost: $4,796,801.56 The actual cost of bid items constructed was $15,040.00 less than the original bid amount due to elimination of several fire hydrants that were unnecessary and substitution of PVC pipe for a segment of 16" water main that was originally designed as steel pipe. The final contract cost was approximately 8.95 percent above the original bid amount with change orders totaling $409,091.56. The larger change orders included additional asphalt concrete (AC) removals due to extremely thick pavement not known during the design process, additional AC paving on MacArthur Boulevard on the opposite side of the street unrelated to the pipeline work and several water main alignment adjustments for utilities not shown on the existing records but were required. The contractor performed well on this project and staff took advantage of the low bid prices to modify additional valves on Coast Highway, San Joaquin Hills Road and Yacht Coquette. Staff also authorized overtime and extra work to expedite construction on MacArthur Boulevard and Pacific Coast Highway as a means to lessen the impact on traffic and the community. A summary of the project schedule is as follows: Estimated Completion Date per 2012 Baseline Schedule September 02, 2014 Project Awarded for Construction January 22, 2013 Contract Completion Date with Approved Extensions August 11, 2014 Actual Substantial Construction Completion Date June 06, 2014 Staff notes that this was a complex project that significantly impacted the community, especially the residents and businesses of Corona del Mar. We sincerely appreciate our residents' and business owners' patience with this project, and are thankful that it was completed successfully - and even in advance of the expected completion date. The work done here by our contractor was quality work, and will assure greater reliability for our community for decades to come. ENVIRONMENTAL REVIEW: City Council found this project exempt from the California Environmental Quality Act ( "CEQA ") pursuant to Section 15301(c). This exemption covers the minor alteration of existing public facilities with negligible expansion of the facilities in areas that are not environmentally sensitive. NOTICING: The agenda item has been noticed according to the Brown Act (72 hours in advance of the meeting at which the City Council considers the item). ATTACHMENTS: Description Attachment A - Location Map ATTACHMENT A �� EAST N�wpORT PROPOSED 30' TRANSMISSION 2LAIh 1'�!!Od' PIPELINE aN o pJfNUE MACARTHUR x �`EJ PRA O d 0 PROPOSED 24' 13 TR PIPELINE PROPOSED ION_ ` R�NUR PROPOSED TIE -IN TdA5Q_Sr4G 30' al--��❑ CWATER PIPEUNOE Luau\ PROPOW AeAtooirorc m —� c.RNPiioN Arc / IE�ILATdI U LJ LJ C T PROPOSED E7dSiM10 IIENFORT / U�_-PIPELINE Dam=JD"N \O 7 �5EAQ M11Ii r 0UT / L S � UOLOENRO� PVE to oomNO te'N IIIIIEM SINX M EXISM IJNAMA BEAM ANXIIur mom= 3" CITY OF NEWPORT BEACH Corona Del Mar Water Transmission Main PUBLIC WORKS DEPARTMENT Location Map C -4603 08/12/2014