INNOVATION July-August 2012

Potash Shiploading System Expansion

Canpotex commissioned CWA Engineers to help respond to the increasing global demand for potash by designing and

implementing the expansion of the existing potash handling facility at Neptune Bulk Terminals in North Vancouver. The expansion included a new 6,000 tph conveyor, a conveyor tunnel, a vehicle overpass and state-of-the-art 600 t capacity surge bin and stainless steel support tower. While addressing the challenges of an existing infrastructure, ongoing terminal operations and site conditions, CWA created an alternate path for the handling of potash and provided Canpotex with the flexibility and potential for future expansion. Owner: Canpotex Terminals. Consultants: CWA Engineers. Contractors: LNS Contracting Services, Houle Electrical, QCA Systems.

TeslaWater Treatment Plant The Tesla Water Treatment Facility is a 315 Mgal/d advanced UV disinfection facility serving the 2.5 million residents of San Francisco. It is the largest such facility in California and was delivered using a fast-track design-build approach in two years. A LEED Silver certified building houses the operations area, which is joined to the UV process area, and electrical building, which reduced the capital costs and improved operability. In order to meet the LEEDSilver rating, Stantec employed a number of sustainability initiatives, including: sustainable site development, water efficient

landscaping and plumbing fixtures, xeriscape landscaping, thermal protection and shading, and selection of eco- friendly building materials. The project has proven to be a model for sustainable alternative delivery of infrastructure while at the same time providing public health protection to the 2.5 million residents of San Francisco. Professionals involved: Reno Fiorante PEng, Brendan Andrews PEng, Soolim Co PEng, Ray Chan PEng, Mark Smith .

TheWilson Farm Habitat Enhancement Project is one of the largest juvenile- salmon-rearing habitat enhancement projects on the Lower Fraser River, encompassing ~186,000 m 2 of aquatic and riparian habitat within Metro Vancouver’s Colony Farm Regional Park. The project’s goals were to re-establish fish access to floodplain channels, while protecting important wildlife and habitat. The team restored tidal flows into the floodplain channels with a system of innovative self-regulating tide gates and an overshot gate. Unlike traditional tide gates, self-regulated tide gates allow tidal exchange between the river and the channels at low to medium tide levels, but close at high river levels to prevent flooding of wildlife habitat. Project management: Transportation Investment Corporation. Lead consultant, habitat design and assessment: LGL. Hydraulic assessment and civil design: Kerr Wood Leidal Associates. Landscape design: Gemella Design. Construction and performance monitoring: Coast River Environmental Services. Wilson FarmHabitat Enhancement

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