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Home My WebLink AboutStaff Report 3.C 03/20/2017DATE: Mar 20, 2017 Agenda Item #3.0 TO: Honorable Ma or and Members of the City Council through City Manager FROM: Dan J CE — Director, Public Works and Utilities Larry Zimm r, P.E. — Deputy Director, Public Works and Utilities SUBJECT: Resolution Accepting Completion of East Washington Street Water Main Replacement (McDowell Blvd. to Sutter St.) Project — C67401003 RECOMMENDATION It is recommended that the City Council adopt the attached Resolution Accepting Completion of East Washington Street Water Main Replacement (McDowell Blvd. to Sutter Street) Project — C67401003. BACKGROUND This project replaced approximately 2,250 feet of old and deteriorated 8- and 10 -inch cast iron water mains with a new 18 -inch water transmission main on East Washington Street between McDowell Boulevard and Sutter Street. The project also included installation of new water services and fire hydrants and restoration of pavement that was affected by the recent PG &E gas pipeline in the same project area. This was the fourth and final phase of the East Washington Street water main replacement program. The third phase completed the water main replacement from Edith to the Petaluma River in 2014 and the second phase from US 101 to Edith was constructed in 2013. The first phase from Howard to the Petaluma River was completed in 2010. Significant failures in these lines had made this water main replacement a top priority. This project improved service, reliability, increased capacity, and reduced repair and maintenance costs. The project location is shown on Attachment 2. DISCUSSION The Notice Inviting Bids was issued on May 20, 2015. As a condition of its encroachment permit, PG &E contributed $440,000 to the City to allow it to include the gas -line pavement repairs along with the waterline repairs. This project was awarded to Argonaut Constructors on July 20, 2015. This project was designed, managed and inspected by City staff. The final construction contract cost is $1,790,363.81, which includes change orders totaling $244,175.06. The four change orders are $54,031.46 to provide and install tie -ins and other miscellaneous work as directed; $22,357.29 to provide and install 3" conduit, 1" conduit and other miscellaneous work for the traffic signal system at the intersection of Maria and East Washington; $113,077.50 to complete dig -outs on North McDowell and East Washington at night and other miscellaneous work as directed; $54,708.81 to provide traffic control for additional loops and other miscellaneous work as directed. There was a cost savings of $93,088.75 by changing the method of payment on certain bid items to time and materials and for bid item underruns. A significant portion of the change orders were the result of extending the pavement rehabilitation on E. Washington Street into Caltrans right of way next to the interchange to take advantage of the opportunity to improve the pavement condition further along this highly traveled section of street. However, the approval process to obtain a Caltrans' encroachment permit and schedule ramp closures caused significant delays to this portion of the project. The planned use of hot -in -place method of pavement rehabilitation also resulted in delays to completion. This was the City's first attempt to use this relatively new technology. Unfortunately, the resulting surface was not acceptable, and the treated pavement portions had to be removed and replaced using standard paving methods. The City did not pay for the initial hot - in -place paving, and the change to standard grind and paving method ultimately cost the City less for the same areas. Staff time spent on this contract was slightly more than the budgeted amount due to the extended project schedule and scope additions. The Contractor performed acceptably with no outstanding claims or issues. The proposed action meets Council Goal: "Plan for and implement priority capital projects as funding permits ". FINANCIAL IMPACTS Council approved a project budget of $2,176,000 in the CIP to be funded from Water Capital funds and a contribution of $440,000 from PG &E for pavement restoration. The total cost for the project, including construction contract, final quantities, change orders, construction management and inspection is $2,089,128.04 as shown in the following table. 2 The following is a breakdown of the approved and revised CIP budget: Project Phase Budget at the time of Contract Award Final Project Costs Design $ 99,000 $ 98,781.13 Construction Contract $ 1,640,000 $1,790,363.81 Legal & Administration $ 18,000 $ 603.37 Salaries and Benefits* $ 10,000 $ ...................0 Construction Management $ 126,000 $ 156,379.73 Contingency $ 240,000 $ ...................0 CIP Overheads $ 43,000 $ 43,000.00 TOTAL $ 2,176,000 $2,089,128.04 *Salary and Benefits included in appropriate project phase. Funding Sources At Contract Award Final Project Costs PG &E Paving $ 440,000 $440,000.00 Water Capital $1,736,000 $1,649,128.04 Total $ 2,176,000 $2,089,128.04 Any unused funds will be returned to the Water Capital Fund for future projects. ATTACHMENTS 1. Resolution 2. Location Map Attachment 1 RESOLUTION ACCEPTING COMPLETION OF EAST WASHINGTON WATER MAIN REPLACEMENT (MCDOWELL BLVD. TO SUTTER ST.) PROJECT- C67401003 WHEREAS, in accordance with Section 68 of Article X of the City of Petaluma Charter and Municipal Code, California Public Contract Code Section 20162 and other applicable law, City staff prepared construction bid documents and solicited bids for the project; and WHEREAS, the Project was bid on May 20, 2015, and three (3) bids were received and opened on June 24, 2015 in accordance With applicable law; and WHEREAS, the lowest responsible bid for the Project was submitted by Argonaut Constructors from Santa Rosa, CA for $1,639,277.50 (Base bid plus bid alternate); and WHEREAS, by Resolution No. 2015 =112, adopted on July 20, 2015, the City Council found the bid of $1,639,277.50 for the Project to be the lowest responsive bid, awarded the Project to Argonaut Constructors, in the amount of $1,639,277.50, conditioned on Argonaut Constructors, timely executing the Project contract and submitting all required documents and authorized and directed the City Manager to sign the Project contract on behalf of the City; and WHEREAS, the following contract change orders (CCO) affecting the project amount have been approved: Change Order Description Amount Number CCO #1 provide and install pipes /fittings for tie -ins, pothole $54,031.46 and verify, backfilling and paving work etc. CCO #2 provide and install conduits for traffic control system $22,357.29 at Maria and East Washington Intersection etc. CCO #3 perform dig outs on North McDowell and Caltrans $113,077.50 right -of -way during night and other miscellaneous work. CCO #4 provide traffic control for installation of additional $54,708.81 traffic loops and other work as directed. Total Change Orders $244,175.06 Bid Item underruns ($93,088.75) ; and WHEREAS, the final contract amount, as amended, including all change orders, overruns, and underruns is $1,790,363.81 and is within the approved project budget; and WHEREAS, City staff have inspected the project and determined that it has been completed in accordance with the contract requirements, and the Contractor's continuing warranty and other obligations pursuant to the contract; and WHEREAS, based on the foregoing, staff recommends acceptance of the project on behalf of the City. NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Petaluma as follows: The contract titled East Washington Street Water Main Replacement (McDowell Blvd. to Sutter St.) Project, with the final contract amount of $1,790,363.81, is accepted as complete, subject to the Contractor's continuing warranty and other obligations pursuant to the contract. 2. The City Clerk is hereby authorized and directed to file a Notice of Completion concerning the project with the Sonoma County Clerk's Office within 10 days of the date of this Resolution. 3. The Public Works and Utilities Director is hereby authorized and directed to release all undisputed retention not subject to pending change orders within 60 days of the date of this Resolution and in accordance with the terms of the Project contract, California Public Contract Code Section 7107 and applicable law. EAST WASHINGTON STREET WATER MAIN REPLACEMENT PROJECT MCDOWELL BLVD TO SUTTER ST PROJECT NO. C67401003 LOCATION MAP soy NoRTy � - s e Attachment 2 Date :March 20, 2017 N City of Petaluma PROJECT SITE w E Public Works and Utilities A - S Department a xg5s 0