Title
Transmission Main Improvements - Construction Manager at Risk Construction Services - WS85507003 (Ordinance S-45498)
Description
Request to authorize the City Manager, or his designee, to enter into an agreement with Achen-Gardner Construction, LLC (Achen-Gardner) to provide Construction Manager at Risk (CMAR) Construction Services for the Scenario 16B Transmission Main Improvements project. Further request to authorize execution of amendments to the agreement as necessary within the Council-approved expenditure authority as provided below, and for the City Controller to disburse all funds related to this item. The fee for services will not exceed $9,950,000.
Report
Summary
The purpose of this project is to rehabilitate one mile of 60-inch pre-stressed concrete cylinder pipe transmission main as part of the Transmission Main Inspection and Assessment Program. The main extends south along 36th Street from Roeser Road to Vineyard Road. The program evaluated relocation versus rehabilitation alternatives including applicable pipe rehabilitation technologies and alternative routes for relocation of the main.
Achen-Gardner's initial services will include preparation of a Guaranteed Maximum Price (GMP) proposal for the Construction Services provided under the agreement and participating with the City in a process to establish a Small Business Enterprise (SBE) goal for the project. Achen-Gardner will be responsible for construction means and methods related to the project and fulfilling the SBE program requirements. Achen-Gardner will be required to solicit bids from prequalified subcontractors and to perform the work using the City’s subcontractor selection process. Achen-Gardner may also compete to self-perform limited amounts of work.
Achen-Gardner's services include, but are not limited to: construction of the selected alternative per final plans and specifications, bond and insure the construction, address all federal, state and local permitting requirements, arrange for procurement of materials and equipment, schedule and manage site operations, deal with owner issues, maintain a safe work site for all project participants, and provide quality controls.
Procurement Information
The selection was made using a qualifications-based selection process set forth in section 34-603 of the Arizona Revised Statutes. Scoring and selection were made in conjunction with the CMAR Preconstruction Services selection process.
Contract Term
The term of the agreement is 433 calendar days from issuance of the Notice to Proceed. Work scope identified and incorporated into the agreement prior to the end of the term may be agreed to by the parties, and work may extend past the termination of the agreement. No additional changes may be executed after the end of the term.
Financial Impact
The agreement value for Achen-Gardner will not exceed $9,950,000, including all subcontractor and reimbursable costs.
Funding is available in the Water Services Department's Capital Improvement Program budget. The Budget and Research Department will separately review and approve funding availability prior to execution of any amendments. Payments may be made up to agreement limits for all rendered agreement services, which may extend past the agreement termination.
Concurrence/Previous Council Action
The City Council approved:
- Design Services Agreement 147481 (Ordinance S-44594) on May 16, 2018.
- Preconstruction Services Agreement 147482 (Ordinance S-44568) on May 16, 2018.
Location
The main extends south along 36th Street from Roeser Road to Vineyard Road.
Council District: 8
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department, and the City Engineer.