Infrastructure
Big Pipe wili open up phase 1 deveiopment lands in Milton, Ontario
Ground has been broken on
the first phase of Halton Region's ambitious plan to open up development in the
Milton, Ontario, area in accordance with
the Halton Urban Structure Program (HUSP). This program was initiated in the late 80s with the objective of plan ning orderly and responsible growth within the Region. Between 1989 and 1994 numerous studies were carried out under the envi ronmental assessment framework to en
sure that all social, economic, environ mental and technical Issues were ad
dressed in developing the plan, which later underwent numerous reviews and refinements.
Funding has been secured for the first phase of the plan which includes design and construction of major trunk water and wastewater mains along Regional Road 25 (formerly Highway 25) from Oakville to Milton. The trunk mains are
now collectively known as "The Big Pipe", and are a $30 million component of the total $98 million infrastructure
cost for the first phase. The HUSP planning process carried out by the Region over the past ten years has led to the identification and associ
ated phasing of developable land within the Milton and North Oakville areas.
The first phase of development is re ferred to as the Milton Southeast Devel
opment Area. To allow this first phase of development to proceed, the plan identified'a need for a new trunk water
main along the Regional Road 25 corri dor, from a new Zone 5 pumping sta tion at Upper Middle Road in Oakville, to Derry Road at the south end of the existing built-up area in Milton. In addition, the need for a trunk
wastewater main within the Regional Road 25 corridor was identified to con
vey wastewater from the new develop ment area in Milton, southerly beyond Upper Middle Road, for ultimate treat ment at an expanded Mid-Halton wastewater treatment plant along the QEW highway. This work is being funded by the developers, not by existing taxpay-
By Wayne Concessi, P. Eng. Dillon Consulting Limited
Trunk water and wastewater main construction aiong Regionai Road 25. Photo - Jeff Williams, Dillon
ers, and there will be no new debt load to lected to carry out the design/build as the Region. signment. A $75,000 honorarium was The Region required that the first paid to the unsuccessful teams. phase of HUSP be quickly implemented The D'Orazio-Walter Joint Venture to meet immediate development needs. team members and their associated work They also required some assurance that assignments are as follows; costs would not increase, since up-front 1. D'Orazio Infrastructure Group - to funding was provided by the benefitting construct 15.5 km of 900 mm diameter trunk water main and 15.5 km of 825 developers. The Region looked at vari ous alternative service delivery methods mm to 2400 mm diameter wastewater to meet these objectives. Ultimately, a trunk sewer and force main; design/build approach was selected for 2. Walter Construction Canada Ltd.- to the major trunk mains, with the expec construct an 1,100 L/s sewage pumping tation that this component (being the station north of Lower Baseline Road; largest component of the first phase) 3. Greater Toronto Consulting Group could meet the tight schedule under this (comprising Dillon Consulting Ltd., method of service delivery and that the Acres and Associated Ltd. and R.V. work would be done for a fixed price, Anderson Associates Ltd.)-to carry out i.e. no surprises. all design, approvals and Quality Assur The Region utilized a two-step proc ance/Quality Control functions. ess for identifying, evaluating and se The Region indicated that the selec lecting the team to design and construct tion of the preferred team was based on the trunk mains. The first step involved a superior design, on the handling of the a request for Expressions of Interest environmental, traffic, and public com
(EOI)from interested teams. Nine EOI
munications issues, and on the team's
submissions were received by the Re gion outlining project understanding, qualifications and innovation that each could bring to the project. The second step involved short-listing the nine sub
past experience. In putting a winning proposal to gether, the D'Orazio-Walter Joint Ven
missions to three, for more detailed de
sign/build proposals. The detailed pro posals were received and reviewed by the Region in February 1999, and the D'Orazio-Walter Joint Venture was se
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ture carried out an extensive review of
the project background and carefully considered the Region's requirements for this project. On this basis, a design was developed which was innovative, but at the same time met the Region's design criteria and standards, and also
Environmental Science & Engineering. June 2000