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HomeMy WebLinkAbout4A-WashingtonSt16-InchWaterMainCITY OF PETALUMA, CALIFORNIAAGENDA BILL Agenda Title: Resolution Approving a Revised Project Budget for the Washington Street 16 -inch Water Main and Sewer Cured -In -Place Pipeline Project (C501008) and Authorizing the City Manager to Execute Amendment No. 2 to the Professional Design Services Agreement with Winzler & Kelly for Additional Construction Management Services to Account for Unanticipated Utility Conflicts February 23, 2009 Meeting Date: February 23, 2009 Meeting Time: ❑ 3:00 PM ® 7:00 PM Categorv: ❑ Presentation ❑ Consent Calendar ❑ Public Hearing © Unfinished Business ❑ New Business Department: Water Resources & Conservation Director: Michael Ban, P.E. m - Contact Person: Remleh Scherzinger, P.E. Cost of Proposal: The additional project amount is $267,315.49 for a new total budget of $1,727,315.49. Amount Budgeted: Project budget is $1,460,000. It is proposed that $267,315.49 be transferred from the Automatic Meter Read Replacement Project (C67500903), which results in a new budgeted amount of $1,727,315.49. Phone Number: 778-4546 Name of Fund: Water Funds Account Number: C00501008-30600-54151 Recommendation: It is recommended that the City Council take the following action: It is recommended that the City Council adopt the resolution approving the revised project budget for the Washington Street 16 -inch Water Main and Sewer Cured -In -Place Pipeline Project and authorizing the City Manager to execute Amendment No. 2 to the Professional Design Services Agreement with Winzler & Kelly for additional construction management services to account for unanticipated utility conflicts. Summary Statement: This project includes replacement of 1,800 feet of deteriorated 8 and 10 -inch water mains and rehabilitating 1,700 feet of severely deteriorated sewer main. Construction was impacted by the presence of a significant number of abandoned, unmarked and incorrectly marked underground utilities, which were encountered on a regular basis. Construction began June 23, 2008, and was temporarily suspended on August 29, 2008, through the holidays, to accommodate construction of the "D" Street Bridge Rehabilitation Project. The additional budget amount compensates the contractor for impacts caused by the unknown underground utilities and supports completion of the project prior to the beginning of the Washington Street Road Improvements Project, which is scheduled to begin in May. Attachments to Agenda Packet Item: Resolution Attachment A — Location Map Attachment B — Winzler & Kelly Professional Design Services Agreement Amendment No. 2 Rev ewed by Admin Svcs. Dir: Reviewed by City Attornev: Approved by City Manager Date: Date. Og Rev 92 Date Last,Revi�ed: 1-19-09 S:\ S:\C.I.P. Folder\WATER Folder\C501009-Washington St. 16inch Water and Sewer CIPP\City Council\February 23. 2.009\agenda bill.draft 6.clean 2-19-09.doc CITY OF PETALUMA, CALIFORNIA FEBRUARi,23,2009 AGENDA REPORT FOR RESOLUTION APPROVING A REVISED PROJECT BUDGET FOR THE WASHINGTON STREET 16 -INCH WATER MAIN AND SEWER CURED - IN -PLACE PIPELINE PROJECT (C501008) AND AUTHORIZING THE CITY MANAGER TO EXECUTE AMENDMENT NO.2 TO THE PROFESSIONAL DESIGN SERVICES AGREEMENT WITH WINZLER & KELLY FOR ADDITIONAL CONSTRUCTION MANAGEMENT SERVICES TO ACCOUNT FOR UNANTICIPATED UTILITY CONFLICTS RECOMMENDATION: It is recommended that the City Council adopt the resolution approving the revised project budget for the Washington Street 16 -inch Water Main and Sewer Cured -In -Place Pipeline Project and authorizing the City Manager to execute Amendment No. 2 to the Professional Design Services Agreement with Winzler & Kelly for additional construction management services to account for unanticipated utility conflicts. BACKGROUND: The Washington Street 16 -inch Water Main and Sewer CIPP Project involves replacing 1.800 feet of deteriorated 8 and l0 -inch water mains with a new 16 -inch water main and rehabilitating the existing 12 -inch sewer main using a trenchless "cured -in-place pipe"technology to improve service and reduce maintenance costs on Washington Street between Water Street and Howard Street. The location of the project is shown in Attachment A. The City Council awarded the construction contract to Team Ghilotti, Inc. (TGI) on June 2, 2008 and authorized an inspection and construction management contract with Winzler & Kelly. Construction commenced on June 23, 2008. One of the challenges facing this project is the presence of underground utilities in Washington Street. During design, the Water Resources Department worked with local utilities (electricity, telephone, gas etc.) to field marls the location of the utilities and pothole the location of brown utilities. The water main was designed to avoid conflict with the known utilities. The City anticipated encountering approximately 156 underground utility conflicts. These conflicts were shown on the construction plans. Thus far during construction, underground utilities that were unmarked, unknown or incorrectly marked were encountered on approximately 80 separate occasions. This is in addition to the 156 anticipated utility crossings. On average, about two unknown underground utilities were encountered for each day of work. When unknown utilities were encountered, the construction team had to temporarily suspend work at that location until the utility was identified, the owner contacted and brought to the site for inspection, and the utility placed in a safe condition for construction. The impacts were compounded by the fact that much of the construction occurred during the evening to reduce traffic congestion. In some instances, the water main had to be redesigned to accommodate the utility. The presence of unknown, umnarked and incorrectly marked utilities has had a substantial impact on the project, has added about 43 working days to the project schedule (the original schedule had 55 working days), and has impacted the work of TGI, Winzler & Kelly and the project budget. The schedule for the project was to be substantially completed prior to Labor Day in order to avoid conflict with the "D" Street Bridge Rehabilitation Project. The Constriction of the "D" Street Bridge project was scheduled to start on September 2, 2008, which would close "M Street and place all traffic on the Washington Street Bridge as the only route into the downtown area. It became apparent to the City that the project was not going to be completed within the contract time. The City notified TGI to suspend all work on August 28, 2008, through the holiday season. When the suspension occurred, the project had consumed 46 working days, leaving nine working days. The additional work caused by the unknown utilities has added 43 working days to the schedule, leaving a total of 52 working days to complete the project. 3. DISCUSSION: The remaining work to be completed on the project includes re -mobilization of the contractor to the site, installation of five water services, hydrostatic and water quality testing of the water main, tie-ins at 14 locations to the existing water main. abandonment and decommissioning of the old water mains, and project demobilization. It is estimated this work will take about 52 working days to complete. We have remobilized as of February 17, 2009; we anticipate that we will be able to complete the project prior to the City's Washington Street Road Improvements Project, which is scheduled to begin in June 2009. Because of the heavy volume of traffic on Washington Street, some of the remaining work will occur at night. The Department will conduct extensive outreach to businesses and residents in the nearby area to inform them of the project and be available to answer any questions they may have. The project inspector will be on-site at all times when construction is occurring to monitor the work and respond to public inquiries. 4. FINANCIAL IMPACTS: As shown in Table 1, total committed project costs to date are $1.324,22438 (this includes the full contract amount, which has been committed, but not paid yet). This includes seven change orders totaling $122,255.26. These change orders address cost impacts created by unknown underground utility conflicts from Jime 25 to July 30, 2008, repair of a ruptured water main, and re -mobilization and demobilization costs associated with re -starting the work. The total CIP project budget is $1,460,000. As shown in Table 2, an additional $267,315.49 to the project budget is requested to address change impacts caused by unknown underground utility conflicts encountered last summer but not included in Change Orders 1 - 7 (the City is currently in negotiation with TGI regarding these conflicts) and contingency to address potential impacts caused by additional unknown underground utility conflicts that may be encountered during the remainder of the Project. The requested budget will also provide for an additional 52 days of inspection and construction management service by Winzler & Kelly. Winzler and Kelly has provided very good service on �1 this project, which has been complicated by the presence of unknown underground utilities, heavy construction occurring at night, all taking place in a very busy section of Washington Street. Using a contract inspector and construction manager allows the City's project management team to prosecute several projects simultaneously and reduces City overhead since the inspector and construction manager go off the City's payroll once the project is completed. Winzler & Kelly's scope of work is provided in Attachment B. As shown in Table 2, the new total project budget is $1,737,315.49. Item Construction Contract Change Order No. 1 Change Order No. 2 Change Order No. 3 Change Order No. 4 Change Order No. 5 Change Order No. 6 Change Order No. 7 Subtotal Change Orders Table 1 Committed Project Costs To Date Description Team Ghilloti, Inc. Ruptured 4 -inch water main Re -mobilization, demobilization, storage yard Underground utility conflicts requiring redesign of water main pipeline Underground utility conflicts 6/30, 7/9, 7/10 Underground utility conflicts 7/14, 7/15, 7/16 Underground utility conflicts 6/25, 6/26, 7/2, 7/3 Underground utility conflicts 7/20, 7/21, 7/22, 7/28, 7/30 Inspection, Construction Management Winzler & Kelly Testing Total Miller Pacific Amount 1,049,189.13 16.236.82 23500.00 19.000.00 17,938.66 18,809.16 8,588.65 19,181.97 122 255.26 137.000.00 15.780.00 1,324,224.38 Item Construction Construction Management Contingency 140, 000.00 137,000.00 13 7.000.00 153,585.00 120,000.00 15737837 122,255.26 205.163.00 Testing 25,000.00 15,780.00 Total 1,460,000.00 1,368,567.49 1,324,224.38 358,748.00' *Budgetary Ba_ance: $1,460,000.00 - $1,368,567.49 = $91,432.51 *Additional Funding Request: $358,748.00 - $91,432.51 = $267,315.49 290,585.00 362,54137 25,000.00 1,727,315.49 It is proposed that the additional $267.315.49 budget fiords be transferred from the Automatic Meter Read Replacement Project (C6750093), which has not begun. Project C6750091 has a FY 08-09 budget of $600,000. Transferring $267.315.49 from the Automatic Meter Read Replacement Project (C6750093) to the Washington Street Water Main and Sewer CIPP Project leaves a FY 08-09 budget of $333,347.51 in the Automatic Meter Read Replacement Project (C6750093). i� Table 2 Revised Project Budget Projected Estimated Costs to Project costs Total Complete 08-09 CIP at Award Committed above 6/2/08 Revised Budget on 6/2/08 Costs 2/12/09 Estimate Budget 1,200,000.00 1,049,189.12 1,049,189.12 1,049,189.12 140, 000.00 137,000.00 13 7.000.00 153,585.00 120,000.00 15737837 122,255.26 205.163.00 Testing 25,000.00 15,780.00 Total 1,460,000.00 1,368,567.49 1,324,224.38 358,748.00' *Budgetary Ba_ance: $1,460,000.00 - $1,368,567.49 = $91,432.51 *Additional Funding Request: $358,748.00 - $91,432.51 = $267,315.49 290,585.00 362,54137 25,000.00 1,727,315.49 It is proposed that the additional $267.315.49 budget fiords be transferred from the Automatic Meter Read Replacement Project (C6750093), which has not begun. Project C6750091 has a FY 08-09 budget of $600,000. Transferring $267.315.49 from the Automatic Meter Read Replacement Project (C6750093) to the Washington Street Water Main and Sewer CIPP Project leaves a FY 08-09 budget of $333,347.51 in the Automatic Meter Read Replacement Project (C6750093). i� RESOLUTION RESOLUTION APPROVING A REVISED PROJECT BUDGET FOR THE WASHINGTON STREET 16 -INCH WATER MAIN AND SEWER CURED - IN -PLACE PIPELINE PROJECT (C501008) AND AUTHORIZING THE CITY MANAGER TO EXECUTE AMENDMENT NO.2 TO THE PROFESSIONAL DESIGN SERVICES AGREEMENT WITH WINZLER & KELLY FOR ADDITIONAL CONSTRUCTION MANAGEMENT SERVICES TO ACCOUNT FOR UNANTICIPATED UTILITY CONFLICTS WHEREAS, on June 2, 2008, City Council awarded the constriction contract for the Washington Street 16 -inch Water Main and Sewer Cured -In -Place Pipeline Project to Team Ghilotti, Inc., and authorized execution of a professional design services agreement with Winzler & Kelly for inspection and construction management services; and WHEREAS, construction commenced on June 23rd, 2008: and WHEREAS, during construction a significant number of unmarked, unknown and incorrectly marked underground utilities were encountered which hampered construction progress; and WHEREAS, the City temporarily suspended the project on August 29, 2008, through the holiday season, in order to avoid a conflict with construction of the "D" Street Bridge Rehabilitation Project; and WHEREAS, the presence of unknown utilities has added about 46 working days to the project schedule for which the contractor must be compensated; and NOW, THEREFORE, BE IT RESOLVED that the Petaluma City Council hereby: 1. Increases the project budget by $267,315.49, which increases the total project budget amount from $1,460,000 to $1,727,315.49. 2. Authorizes the City Manager to execute Amendment No. 2 to the professional design services agreement with Winzler & Kelly in the amount of $153,585 for additional inspection and construction management services. LOCATION MAP ATTACHMENT "A" WASHINGTON STREET 16 -INCH WATER MAIN AND SEWER CIDP PROJECT LOCATION MAP i .epi �•'"� ' f r^ j l � "�, , t � , 3 � i ,t " x„ vo t'� ,y,, ✓xa_ C�y�j - K ,-al"-r', s rv.�'6 m. Y./iP`i-- Y ✓R al' a p. 4� �^1` +w"� �b m: r _y r e'd (i tit<N , `e r '4a i.'. 4 Z�. . �' �,. r G r.��ro a _i •" °� Ys tx �at�a�. NC`'13;,� 5 ''' ( '� '`'w""� dr7pp"i ^£*C' pr�'L i4i "i\�f �t� t[', 9✓rrx t° ':!'', x> �h� w 1. 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'd '•� s'� '7 '`r i4s. 4 0 'S, , t N WA,-- E W&C O UTILITY ENGINEERING 3 WINZLER & KELLY PROFESSIONAL DESIGN SERVICES AGREEMENT AMENDMENT NO. 2 �i; AMENDMENT NO.2 To PROFESSIONAL DESIGN SERVICES AGREEMENT Construction Management Services for the Washington Street 16 -inch Water Main and Sewer CIDP Project C00501008-3700-54152 THE AGREEMENT made and entered into on June 24, 2008 by and between the City of Petaluma, a Municipal Corporation and a charter city (hereinafter referred to as "City") and Winzler and Kelly Consulting Engineers, (hereinafter referred to as "Consultant") is hereby amended to include the following: 1. Provide additional construction management services to provide additional services, inspection and GIS as -built data as described in Attachment A, dated January 15, 2009. 2. The temi of this Agreement shall be extended from December 31, 2008 to December 31, 2009. 3. The cost for the additional services shall not exceed $153,585. This Amendment increases the total contract amount as described in Paragraph 2C of the original Agreement, as amended by Amendment No. 1, $137.000 to $290,585. THIS AMENDMENT NO. 2 is hereby executed this day of 2009. CITY OF PETALUMA City Manager ATTEST: City Clerk APPROVED AS TO FORM: City Attorney APPROVED: Department Director APPROVED: Risk Manager APPROVED: CONSULTANT By Name Title Address City State Zip Taxpayer I.D. Number Petaluma Business Tax Certificate Number Interim Finance Director S:\C.I.P. 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