Title
Val Vista Transmission Main Rehabilitation 2016 - Construction Administration and Inspection Amendment - WS85500437 (Ordinance S-44599)
Description
Request to authorize the City Manager, or his designee, to amend Contract 145111 with Stanley Consultants, Inc. to provide additional construction administration and inspection (CA&I) 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. The fee for services will not exceed $193,000.
Report
Summary
In 2005, consultants designed the rehabilitation of a portion of the Val Vista transmission main that included pipes ranging in size from 72 to 108 inches in diameter. Construction followed completion of the design; however, the entire 13.3 miles of the project were not constructed at that time, and therefore a majority of the Val Vista transmission main still requires re-lining or rehabilitation.
A scoping analysis completed on the transmission main in 2016 determined the remaining 29,000 linear feet of the Val Vista transmission main should be re-scoped to include 5,000 to 6,000 linear feet segments for rehabilitation. In 2017, re-inspection of the main confirmed the direction of the re-scoping effort.
CA&I services provided by Stanley Consultants, Inc. include, but are not limited to: participating in final design meetings and reviewing construction plans and specifications; reviewing proposed cost models delivered by the City's Construction Manager at Risk (CMAR) contractor; performing general project administration, construction inspections and special pipeline inspections; providing resident engineering services during construction while acting as the City's representative; and providing daily interaction with contractors to clarify job requirements.
Procurement Information
Stanley Consultants, Inc. was selected for this project using a qualifications-based selection process according to section 34-603 of the Arizona Revised Statutes.
Contract Term
The term of this contract remains unchanged and will coincide with the duration of construction, which is expected to require approximately four years for completion. 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 charges may be executed after the end of the contract term.
Financial Impact
The initial contract for CA&I services was executed for a fee not-to-exceed $600,000, including all subconsultant and reimbursable costs. Additional CA&I services will increase the contract value by $193,000, for a new total contract value of $793,000, including all subconsultant and reimbursable costs.
Funding for this amendment is available in the Water Services Department's Capital Improvement Program budget. Contract payments may be made up to contract limits for all rendered contract services, which may extend past the contract termination.
Concurrence/Previous Council Action
The City Council approved:
- CMAR Design Phase Services Contract 144855 (Ordinance S-43441) on April 19, 2017;
- CMAR Construction Phase Services Contract 144854 (Ordinance S-43440) on April 19, 2017;
- CMAR Construction Phase Services Contract 144854 Amendment 1 (Ordinance S-43536) on May 31, 2017;
- CA&I Services Contract 145111 (Ordinance S-43615) on June 7, 2017;
- Design Services Contract 146959 (Ordinance S-44263) on Feb. 21, 2018; and
- CMAR Construction Phase Services Contract 144854 Amendment 2 (Ordinance S-44510) on May 2, 2018.
Location
Rio Salado Parkway and Tempe Canal (SRP), Mesa, Ariz.
Center Street and Inglewood Street, Mesa, Ariz.
Mesa Drive and Jensen Street, Mesa, Ariz.
Council District: Out of City
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department, and the City Engineer.