Tender let for water valve and trunk duplication

A tender has been let to upgrade a drinking water pressure reduction valve and to duplicate a trunk water main.

Eire Constructions Pty Ltd will duplicate the major water main that brings drinking quality water from the reservoirs and treatment plants to the mains that supply the customer.

The pressure reduction valve is used to reduce the water pressure from the higher pressured trunk mains to the mains that feeds the customer's home.

The aim of the project was to construct a new pressure reduction valve arrangement, complete with two new valve chambers, two new pressure reduction valves, pipework, electrical switch board and cabling, pigging arrangement and trunk main duplication main at Woy Woy pressure reduction valve station.

The work should result in improvements to the system's capacity and redundancy.

It was also aimed to improve and resolve existing issues including confined spaces and access issues.

Another Council objective for the project was to provide a facility which was safe and convenient for both routine and emergency maintenance, maximising the ability to maintain the critical item of infrastructure in reliable condition.

Tender responses were evaluated by the Tender Evaluation Committee against weighted criteria.

Eire Constructions Pty Ltd was chosen as its application delivered the best overall proposal for the works (for cost competitiveness and against weighted non-cost criteria) that would provide value for money to Central Coast Council, according to a report to the Wednesday, November 23 ordinary Council meeting.

"The recommended tender proposal has conformed to all commercial and technical requirements," the report said.

"The recommended tenderer provided a well-developed methodology for the project including good understanding of the works and tested management system to meet Council's requirements.

"The contract plan was approved by the Manager Construction Planning and Management, before the request for tender was issued.

"The invitation documents called for lump sum tenders, based on a detailed specification."

Tenders were received from (in alphabetical order): Comdain Civil Construction Pty Ltd; Eire Constructions Pty Ltd; and Zinfra Pty Ltd.

It is anticipated that the works will be available to be put into service by June.

Central Coast Council agenda 3.3, 23 Nov 2016