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HomeMy WebLinkAboutChange Order - 34Docusign Envelope ID: 10091669-249C-4D89-AEC5-52F6EABA753B Contract Title: Change Order No. 34 Rainier Ave S Corridor Improvements -Phase 4 Contractor: Pivetta Brothers Construction, Inc. Contract No.: CAG-22-163 Federal Aid No.: STPUL-1615(005) 181 Ordered by Engineer □Force Account□ Proposed by the Contractor (VECP)181 Bid Item □Unilateral □Bid Item Price Adjustment□Lump Sum Affects DBE Work: □No 181 Yes If yes, must receive concurrence from Local Programs Original Contract: Current Contract: Estimated Net Change This Order: New Contract: Reviewed By: �� gineelof Record ""' Reviewed By: Project Manager Reviewed By: City Attorney 34 prior to execution. 1/30/2025 Date 2/3/2025 Date Date Amount Working Days $28,284,172.90 500 $35,442,840.43 654 $22,028.00 0 $35,464,868.43 654 Design Manager) Consent By: Surety (Greater than 25% cost and/or 20% time increase) Endorsed By: Russell Owen ��= Contractor Date Date 3/5/2025 Date Executed By,.---:□ocuSigned by: �s����a�:�tucha 3/20/2025 City of Renton Public Works Date Administrator/ Mayor Change Order No. Contract Title: Rainier Ave S. Corridor Improvements -Phase 4 Contract No. CAG-22-163 Page 1 of 10 I 9:19 AM PDT CAG-22-163, CO #34-25 Approve by Cheryl Beyer via email 3/6/2025 Docusign Envelope ID: 10091669-249C-4D89-AEC5-52F6EABA753B THE CONTRACT IS MODIFIED AS FOLLOWS: Description of Change: The Contractor shall install a corrugated metal pipe (CMP) form at signal and luminaire pole foundation locations as required to protect against groundwater intrusion and sloughing of existing and disturbed materials. Proposal Schedule of Prices: ADD the following to Schedule A: 34-A198 -Install Corrugated Metal Pipe Forms at Signal Pole Foundations, 5-foot, 13 EA @ $756.00 = $9,828.00 34-A199 -Install Corrugated Metal Pipe Forms at Luminaire Pole Foundations, 4-foot, 5 EA @ $800.00 = $4,000.00 34-A200 -Install Corrugated Metal Pipe Forms at Luminaire Pole Foundations, 8-foot, 1 EA @ $1,200.00 = $1,200.00 34-A201-Install Corrugated Metal Pipe Forms at Luminaire Pole Foundations, 10-foot, 5 EA@ $1,400.00 = $7,000.00 Specification and/or Special Provision: None. Description: None. Materials: None. Measurement: SP 8-20.4 is supplemented with the following: "Install Corrugated Metal Pipe Forms at __ Pole Foundations, __ -foot," per each. Payment: SP 8-20.5 is supplemented with the following: "Install Corrugated Metal Pipe Forms at __ Pole Foundations, __ -foot," per each. Change Order No. Contract Title: Contract No. 34 Rainier Ave S. Corridor Improvements -Phase 4 CAG-22-163 Page 2 of 10 2/26/2025 Yu Hong Wu / President Serial Letter: 039 February 29, 2024 To:Michelle Faltaous City of Renton 1055 South Grady Way Renton, Washington 98057 Reference Project: CAG-22-163, Rainier Ave S Corridor Improvements – Phase 4 Project Subject: PCO-049, Corrugated Metal Pipe for Pole Foundations due to Groundwater Mrs. Michelle Faltaous: As discussedwiththeCityof Renton,GoldenGateElectric is recommendinginstallingcorrugatedmetal pipes(CMP) forthepolefoundationsthathavegroundwatersimilartoCMPinstallationaddressedin Serial Letter009.AsoutlinedintheattachedletterfromGoldenGate(SerialLetter#15), GoldenGateis concernedwiththeunexpectedhighgroundwaterthathasbeenobserved. Thisgroundwaterwillcause significantissues withthe drilledshafts andinstallingtheCMPs nowis acost-effective meansto mitigatethis risk. Thecosts forthis effortis $9,828 , or13foundationsat$756.00Each(withPivetta’s12%Markup). Yourassistancewiththis issueis appreciated.Pleasefeelfreetocontactme,at (206) 914-2723ifyou have anyquestionsorconcerns. Respectfully, Bill Adams Sr. Project Manager w/ Attachments: Golden Gate Serial Letter #15 Cc: Jordan Howe, Perteet Russ Owen, Pivetta Alan Guthmiller, Golden Gate Electric Serial Letter #15 February 12, 2024 Bill Adams Senior Project Manager 1812 Pease Avenue Sumner, Washington 98391 RE: Rainier Ave South Corridor Improvements Phase 4- Ground water Bill, per our conservation on the phone last week I have concerns about the excavation of foundations on this project. In review of the soils reports Wood page 22 of 30 it states, the drilled shaft signal pole foundations will be constructed using the dry method in accordance with areas where water is expected to be encountered, which are at South 3rd Street on the east side and Airport Way west side. The report also shows that the ground water should not impact the lighting foundations at all from what is illustrated in the report for the pockets of ground water and depths. We used this information in preparation of our bid to calculate the cost to support the drilling operations. Now that we have trenched through ninety percent of the project, we believe that there is a lot more ground water than this report shows. We believe the ground water on this project is widespread and could result in downtime plus additional unanticipated cost. We already know ground water exists on the east side of South 2nd street at 4- 6 feet. Just this week we encountered water at 5 feet on the West side of Victoria. I also want to bring up grades for the foundations. From the start of the project bolt heights have been a concern. Now with the likely possibility of ground water many of these signal bases will be installed by advancing a casing or underwater pressure methods. This will not allow us to install anchor bolts in advance of the pour. Bolt will have to be installed as concrete is places which is more difficult and subject to errors. This along with changes of curb heights, this will increase the risk of bolts not being set to the exact preferred height. To be more proactive I believe we should set up for the worst-case situation. First, I would think it would be prudent to have some extra corrugated metal pipe (CMP) on site. Currently we have CMP in the 2nd street yard for the bases called out in the pending change order. We can replace at current pricing what we use when the need presents itself, but we still will need to track this on FA. We also can be proactive to determine locations that have experienced high ground water. Lastly, I believe we should do a cold joint on all bases of 10 feet or more. This would require a 4 to 5-foot piece of CMP at each base that is 10 feet or more, and not part of the CMP change order. This would allow us to set the bolts and pour the tops right after the curb is poured. This would save time and eliminate the need for access of heavy equipment in sidewalk areas after curb is poured. We are looking at an estimated cost of $675.00 per foundation for procurement, cutting, shipping, covers, and installation. In the end I think we will save on downtime costs overall by reducing the exposure. Please let me know if you have any questions on this matter. Sincerely, Alan Guthmiller Alan Guthmiller