Arbutus Attenuation Tank

The Arbutus Attenuation Tank Project included a new access driveway, site drainage and facilities, sanitary sewers, watermains and an attached valve/meter chamber.

The project also included off-site works which consist of improvements to the road frontage on Arbutus Road.

The on-site components of the work are generally described as follows:

• Clearing, grubbing and preparation; water service
• Tank valve chamber
• Construction of sewers and tie-ins including bypass pumping
• Removal of abandoned sewer infrastructure
• Secant pile installation and shoring
• Structure excavation
• Rock blasting
• Rock anchors
• Reinforced concrete structure; process mechanical systems including piping, cleaning system, sump pumps and air compressor system
• Building mechanical systems including heating, ventilation, plumbing and odour control system; electrical systems including power supply and distribution, motor control centre, variable frequency drives, lighting, and generator plug-in receptacle
• Controls, instrumentation, programming and SCADA integration
• Site grading and site drainage works
• Landscaping
• Access driveway and parking areas.

The off-site components of the work included:

• Arbutus Road frontage improvements
• Existing asphalt removal
• Earthwork grading
• Subgrade preparation
• Asphalt roadway and line painting
• Asphalt bicycle lane and line painting
• Concrete sidewalk, curb and gutter; storm water infrastructure
• Infiltration swales
• Bus stop and signage.