CRD Macaulay Point

Capital Regional District - Macaulay Point Pump Station & Sewer Forcemain

This Design -Build - Project required extensive detailed planning in conjunction with a well executed phased construction plan.  All the drilled and blasted rock from both the new sewer pump station excavation and forcemain excavation was crushed onsite and utilized for all the sewer backfill and bedding materials for the project. Over 20,000m3 of ¾ “ MMCD Bedding, 1” clear crush and 3” road base was utilized on the project, thus resulting in reduced offsite trucking and import granular requirements.

The traffic control plan was successfully executed to maintaining traffic flows through the site and provide public access to both Macaulay Point and local residences with minimal delays throughout the construction process.  Scansa crews worked closely with the affected residents to minimize disruption and maintain access to all residences.

The Project also involved the installation of 760m of a 1350mm HDPE fused sewer forcemain that was installed between 3m to 7m deep.  Numerous of the existing utilities including 900mm sewer, 200mm water and concrete encased hydro duct banks were supported and suspended during construction so to minimize any impacts to the existing active utilities.

Prior to construction commencing a significant number of existing utilities were present within the proposed alignments.  Pre-location of all the existing utilities at crossing points, together with planning and working with the project engineer to adjusting the horizontal and vertical routing of the new sewer forcemain ensured that no unexpected conflicts created delays.

The new sewer pump station was drilled, basted and excavated to extremely tight tolerances on a very aggressive schedule.  Over 20,000 m3 of rock was drilled and blasted and over 15,000m3 of clay and till was excavated during the construction of the pump station and sewer forcemain.

Due to loading restriction on the new pump stations the building backfill materials need to be completed using a variety of materials which included: 3000m3 of Jaw Run, 3000m3 of 1” clear drain rock, 1000m3 or 6-12” clear rock and 800m3 of 5mpa & 25mps concrete. Scansa worked closely with KWL, Kenaidan and Thurber to complete the complex backfill requirements on an accelerated schedule to keep the project on schedule.

The Project involved multiple crews working in separate areas to meet the projects schedule. Scansa’s Site Supervision and Management team worked closely with KWL and Kenaidan, Scansa’s crews, material suppliers, Subcontractors, and the Owner’s staff to ensure coordination of the various operations, ongoing management of Public access, and completion of the tasks within the construction schedule.

Specifications

• Over 15,000m3 of clay and till was excavated during the construction.
• Over 20,000 m3 of rock was drilled and blasted.