INNOVATION July-August 2014

Riverbank Protection Study LCI, LaCas Consultants was retained by Fraser Pacific Enterprises to carry out a riverbank protection study along 0.5 km of its property located along the North Channel of the Fraser River in Mission, BC. Bank erosion over the years has resulted in a loss of about 2.8 ha of riverbank, which, if left unabated, would interfere with existing operations. River soundings were input into a hydraulic model to review the impact of river spur dikes and rock riprap bank protection. The preliminary design recommendations included river engineering solutions to create riparian enhancement opportunities while allowing Fraser Pacific to maintain a working operation along the Fraser River. Sr. Hydrotechnical Engineer: Brian LaCas, P.Eng. (LCI, LaCas Consultants).

Coquitlam Ultraviolet (UV) Disinfection Project Metro Vancouver recently completed the Coquitlam Ultraviolet (UV) Disinfection Project to meet new requirements under Health Canada’s Guidelines for Canadian Drinking Water Quality, specifically for treatment of Cryptosporidium. Utilizing UV disinfection technology, the new facility complements the existing ozone and chlorination processes at the Coquitlam source. The $110-million water treatment facility is designed for a peak capacity of 1,200 ML/day (317 MGD) and uses a new type of UV system that has lower maintenance and energy consumption relative to conventional systems. The UV units are oriented in an innovative vertical pipe loop configuration to reduce earthworks, building footprint and environmental impacts. Designed to LEED Silver, the project includes sustainable and environmental features such as green roofs, enhanced salmon and riparian habitat, permeable pavement, EcoSmart™ concrete and a hydronic heating system that uses lake water to efficiently heat and cool the buildings. Owner: Greater Vancouver Water District (Metro Vancouver). Design and construction management: Ausenco Engineering Canada. Subconsultants: CDM-Smith; Kasian Architecture; PMG Landscape Architects; Golder Associates; Advicas. Contractor: Kenaidan Contracting.

Mine Support Vessels M/V “Nunavik” and sister ship, the Canadian flag vessel m/v “Umiak I” (built in 2006), are 30,000-hp, PC4 ice class, purpose designed and built, Mine Support Vessels (MSV) supporting mining operations in Northern Quebec and Labrador. The MSVs are distinctive and unique in that in addition to being bulk carriers, container ship, oil tanker and general cargo carrier all in one vessel, they are also very high ice class icebreakers. The ships are capable of operating independently into the Canadian Arctic year-round; transiting continuously ahead in 1.5-m thick winter-level ice. They transport mine re-supply equipment and diesel fuel northbound and copper and nickel concentrates southbound. Consequently, there is no ballast leg voyage, thus offering cost-effective shipping to mining operations located in remote areas. Nunavik was built at JMU Tsu Shipyard in Japan and went into service in January 2014. Vessel owner/operator: Fednav. Montreal technical director/naval architect: John T. Stubbs, P.Eng.

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