Title
Sub-Regional Operating Group Salt River Outfall Interceptor Rehabilitation, Construction Manager At Risk Construction Phase Services Amendment 1 - WS90160093 (Ordinance S-43510)
Description
Request to authorize the City Manager, or his designee, to execute Amendment 1 to Contract 144364 with Achen-Gardner Construction, LLC, (Chandler, Ariz.) to provide Construction Manager at Risk (CMAR) Construction Phase services for the Sub-Regional Operating Group (SROG) Salt River Outfall Interceptor Rehabilitation project. Further request authorization for the City Controller to disburse all funds related to this item.
Report
Summary
The City of Phoenix recently completed a condition assessment of the Salt River Outfall to determine the scope and need for rehabilitation of the interceptor sewer line. The final condition assessment recommendations are divided into five sections (A through E). Sections A and B were completed in Fiscal Year 2014-15. This current work for Section C involves rehabilitation of 48 manholes and repair of a short liner, and Section D involves rehabilitation of pipes and manholes at the Phoenix Sky Harbor International Airport and the Rental Car Center. Section E is scheduled to be completed in Fiscal Year 2017-18. The Water Services Department is coordinating with the Aviation Department on Section D to minimize operational impacts to the airport.
Achen-Gardner Construction, LLC, will assume the risk of delivering the project through a Guaranteed Maximum Price (GMP). The CMAR will be responsible for rehabilitation (construction) of the SROG Salt River Outfall interceptor sewer line, procurement of materials and equipment, scheduling and managing site operations, providing quality controls, and managing all construction-related contracts while meeting City procurement requirements, including local and small business enterprise (SBE) participation goals. A SBE goal of one percent has been established for this project.
Procurement Information
Achen-Gardner Construction, LLC, was chosen to provide CMAR services for this project using a qualifications-based selection process according to Section 34-603 of the Arizona Revised Statutes. Scoring and selection were made in conjunction with the CMAR Design Phase Services procurement process.
Contract Term
The term of this contract is approximately 240 calendar days. Contract work scope identified and incorporated into the contract prior to the end of the contract may be agreed to by the parties, and work may extend past the termination of the contract. No additional contract work scope changes may be executed after the end of the contract term.
Financial Impact
Achen-Gardner Construction, LLC's initial CMAR construction services contract value was established at a not-to-exceed amount of $59,184.15 to provide GMP preparation services. The contract capacity will be increased by $9,550,000 for a new contract value of $9,609,184.15, including all subcontractor, supplier and reimbursable costs. Funding is available in the Water Services Department's Capital Improvement Program budget. Funds for both Sections C and D are available for encumberance in Fiscal Year 2016-17. Contract payments may be made up to the contract limits for all rendered contract services, which may extend past the contract termination.
Concurrence/Previous Council Action
Council approved Design Contract 142406 with Brown and Caldwell, Inc., on April 6, 2016, and CMAR Design Phase Services Contract 142405 with Achen-Gardner Construction, LLC, on April 6, 2016.
Public Outreach
The Water Services Department will follow the Public Information Guidelines for this project. Public outreach flyers and notifications will be distributed to the affected stakeholders before and during construction. Currently, the Water Services Department is coordinating stakeholder involvement and outreach activities with Aviation Department's staff and public involvement consultants for tenants of Phoenix Sky Harbor International Airport.
Location
The project is located on the Salt River Outfall interceptor sewer from the convergence of the Indian Bend Wash and Tempe Town Lake to the 91st Avenue Wastewater Treatment Plant. However, the largest portion of the contracted funds will be spent on the interceptor alignment across Phoenix Sky Harbor International Airport.
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department and the City Engineer.