INNOVATION July-August 2015

2014 ¢


Johnson Street Bridge Replacement Hemmera has provided environmental support to PCL for the Johnson Street Bridge replacement project since 2013. This includes developing contaminated soil management plans, completing public notification, and applying for an on-site Waste Discharge Authorization for contaminated soils. Hemmera provided construction environmental

monitoring services including regular inspections, reporting and reviewing environmental work plans that address potential environmental hazards. The company also assists PCL to liaise with regulatory agencies such as the BC Ministry of Environment, the Department of Fisheries and Oceans and Transport Canada. Hemmera monitored in-water work to verify that environmental controls were in place and risks to aquatic life minimized. Owner: City of Victoria. Constructor: PCL Constructors Westcoast. Design engineer: MMM Group Limited. Environmental consultant: Hemmera Envirochem (Claire Lewis, P.Eng.).

Chlorine Dioxide Plant In May 2015, CMPC Celulose Riograndense, a subsidiary of Chilean CMPC in Brazil, successfully started its new 1.3 million tonnes/year bleached eucalyptus kraft (BEK) pulp line at Guaíba, in Rio Grande do Sul state.  This pulp mill expansion included a new 55 tonne/day chlorine dioxide plant, supplied by Chemetics (Vancouver), a subsidiary of US-based Jacobs Engineering Group. Chemetics was contracted by CMPC to design the plant, supply key equipment and materials, and provide site advisory services for plant construction, operator training, commissioning and performance testing. APEGBC members involved: Andrew Barr, P.Eng.; Gail Beatson, P.Eng.; Clayton Cunningham, P.Eng.; Vitor da Silva, P.Eng.; James Feeney, P.Eng.; Christer Hallberg, P.Eng.; Erich Hinze, P.Eng.; Allison Merz, P.Eng.; Ganapathy Ramasubbu, P.Eng.; Gilbert Thibault, P.Eng.; Roza Tizvar, P.Eng.; Amir Javaadi, P.Eng.; Enoth Li, P.Eng.; Donald Mah, P.Eng.; Gregory McFadden, P.Eng.; Arash, Tavakoli, P.Eng.; Anish Trikha, P.Eng.; Thomas Wacker, P.Eng.; Robert Murdoch, P.Eng.; Harnam Trehin, P.Eng.; Alady Sukumar, P.Eng.; Vasile Fratila, P.Eng.; Thomas Stegemann, P.Eng.; Philip Benson, P.Eng.; Dale Wright, P.Eng.

Wire Theft Abatement Since 2005, the City of Surrey has experienced a dramatic increase in copper wire theft from its free-standing ornamental street light system. Over the past 10 years, the City spent approximately $9.8 million in direct repair costs. To curb this illegal, unsafe activity, the Engineering Department undertook a technical review and a business case study for replacing the conductors from copper to aluminum. Since aluminum has approximately 10% of the value of copper on a weight basis in relation to selling it through recyclers, there would be little incentive for wire theft. Both the technical review and business case supported the replacement of the streetlight conductors from copper to aluminum. In 2014 the City of Surrey, with inspection and coordination services by Aplin & Martin Consultants, commenced a city-wide Wire Theft Abatement Program and replaced approximately 700 kilometers of streetlight wires from 16,000 free-standing ornamental lights within one year. Client: City of Surrey. Consultant: Aplin & Martin Consultants.


J U LY/AU G U S T 2 015

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