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ITEM 14 |
City Council Memorandum Public Works & Utilities Memo No. CP22-162
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Date: |
May 12, 2022 |
To: |
Mayor and Council |
Thru: |
Joshua H. Wright, City Manager Andy Bass, Deputy City Manager John Knudson, Public Works and Utilities Director Kimberly Moon, Acting Capital Projects Manager |
From: |
Gina Ishida-Raybourn, Utilities Engineering Manager |
Subject: |
Construction Contract No. WA2008.401, Change Order No. 2, with Achen-Gardner Construction, LLC, for the Loop 101 and 202 Freeway Waterline Rehabilitation |
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Proposed Motion: |
Move City Council approve Construction Contract No. WA2008.401, Change Order No. 2, to Achen-Gardner Construction, LLC, in the amount of $800,000, for a revised contract amount not to exceed of $7,411,575.10. |
Background/Discussion: |
In February 2018, the City experienced a large water main break northeast of the intersection of Price Road and the Loop 202 Santan Freeway Interchange. Staff responded quickly by shutting down the 36-inch diameter water transmission main. In the following months, the City hired a consultant and contractor to evaluate the cause and condition of damaged pipeline and perform necessary repairs. A condition assessment of the pipeline revealed that it was in poor condition and recommended that rehabilitation or replacement of the pipe be considered. On July 15, 2021, City Council awarded Construction Contract No. WA2008.401, to Achen-Gardner Construction, LLC, for procurement of water pipe materials due to long lead times for delivery. On October 14, 2021, City Council awarded Change Order No. 1 to Achen-Gardner Construction, LLC, for the construction effort to replace the existing 30-inch potable waterline that crosses the Loop 202 Santan Freeway and the existing 36-inch potable waterline that crosses the Price Road (Loop 101) Freeway. Change Order No. 2 is for additional costs due to unforeseen conditions related to the extensive remediation of the existing waterline casings under the Loop 101 and 202 freeways, cost for additional waterline materials, and additional work required to provide reliable and robust water service to customers. An additional 35 calendar days has been added for a revised total of 301 calendar days to final completion following the Notice To Proceed. |
Evaluation: |
Staff reviewed the scope of work, billing rates, and total fee for the Change Order No. 2 and determined them to be reasonable. |
Financial Implications: |
On January 27, 2022, City Council approved Resolution No. 5548, entering into a Joint Project Agreement (JPA) with the State of Arizona for this project. Under the JPA, the City will be reimbursed up to $8,000,000 in grant funds for the Loop 101 and 202 Freeway Waterline and Sewer Rehabilitation Project. |
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Fiscal Impact |
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