Title
Val Vista Transmission Main Rehabilitation - Construction Manager at Risk Construction Phase Services Amendment 1 - WS85500437 (Ordinance S-43536)
Description
Request to authorize the City Manager, or his designee, to execute Amendment 1 to Contract 144854 with Achen-Gardner Construction, LLC (Chandler, Ariz.) to provide Construction Manager at Risk (CMAR) Construction Phase services for the Val Vista Transmission Main Rehabilitation 2016 project. Further request authorization for the City Controller to disburse all funds related to this item.
Report
Summary
The Val Vista Transmission Main includes pipe sizes ranging from 72 inches to 108 inches in diameter. A scoping analysis was completed on the Val Vista Transmission Main in 2016, which determined the first four sections that require slip-lining of approximately 5,070 LF of 90-inch to 96-inch transmission main. Additional sections will be rehabilitated in future construction phases.
Achen-Gardner Construction, LLC, will assume the risk of delivering the project through a Guaranteed Maximum Price (GMP) contract. The CMAR services will include performing the designated rehabilitation of the Val Vista Water Transmission Main slip-lining per plans and specifications, procurement of materials and equipment, coordination with City of Phoenix Water Operations, and the City of Mesa, and management of all construction-related contracts while meeting City bid requirements, including local and Small Business Enterprise (SBE) participation goals.
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 the contract is for three years. 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
The initial contract value was established at a not-to-exceed amount of $24,973.78 to provide GMP Preparation Services. The contract capacity will be increased by $8,750,000, for a new contract value $8,774,973.78, including all subconsultant, subcontractor, and reimbursable costs. Funding for these services is available in the Water Services Department's Capital Improvement Program budget. Contract payments may be made up to the contract limits for all rendered contract services, which may extend past the contract termination. The initial contract (#144854) was executed to have the CMAR firm provide construction GMP pricing. The actual construction costs for the project were to be incorporated through an amendment to the initial contract.
Small Business Outreach
An Small Business Enterprise (SBE) goal of 1 percent has been established.
Concurrence/Previous Council Action
City Council approved the CMAR Design Phase Services Contract 144855 on April 19, 2017, and the CMAR Construction Phase Services Contract 144854 on April 19, 2017.
Location
- Bass Pro Drive and Alma School Road (Mesa, Ariz.)
- North Country Club Drive and West Juniper Street (Mesa, Ariz.)
- West Juniper Street and Grand Ave (Mesa, Ariz.)
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department and the City Engineer.