INNOVATION May-June 2018

Project Highlights •

BRIDGE REPLACEMENT PROJECT Contractor Emil Anderson Construction worked with consultants Klohn Crippen Berger (structural, geotechnical, and hydrotechnical design), Urban Systems (roadway, drainage, and utilities design), and GNEC (electrical design) for the design and construction of the Vedder Bridge Replacement Project for the City of Chilliwack. The main project components were a tied-arch bridge and a new roundabout intersection. The bridge was launched using a temporary king post column and stay-cable system, a world first for a steel arch bridge. The superstructure was balanced as a cantilever system using the precast deck panels as a counterweight, while the structure was advanced with horizontal jacks over the Vedder River into final position. Klohn Crippen Berger: Bruce Hamersley, P.Eng. (Project Manager), WilliamWu, P.Eng., P.E., Keith Mitchell, P.Eng., James O’Reilly, P.Eng., David Dowdell, P.Eng., Cameron Turner, EIT, Steve Ahlfield, P.Eng., Sam Sisodraker, P.Eng., Ryan Liu, P.Eng., Andrew Port, P.Eng., Tenson Joseph, Edwin Gloria, Kyle VanDerveen. HYBRID TRANSPORT VESSEL ENERGY STORAGE SYSTEM Corvus Energy supplied the lithium-ion based energy storage system (ESS) for a retrofit of the hybrid cargo transport vessel MS Hannah Kristina . The vessel will utilize a 1,000 kWh Orca Energy ESS to provide 100 percent of its energy requirements during harbour operations. This reduces fuel and operating costs and drastically reduces environmental impact. Orca Energy ESS is designed for hybrid and all-electric maritime applications. Innovations such as improved thermal management, increased energy density, and improved safety, together with cost reduction, have enabled more marine vessels to be converted from diesel to hybrid electric. The Orca Energy ESS in the photo can be fully charged in as little as half an hour and has sufficient energy capacity to power the average BC household for over a month. Project owners: Corvus Energy, Halvorsen Power Systems AS. Corvus engineering team: Joe Seraphim, P.Eng., Kalen Espey, EIT DUAL-FUEL EXTREME ESCORT TUGS Recently delivered by Gondan Shipyard in Spain, Dux , Pax , and Audax are the world’s first dual-fuel (diesel and LNG) escort tugs. Designed by Robert Allan Ltd. for Østensjø Rederi, the vessels commenced operation at Statoil’s LNG terminal near Hammerfest, Norway. They have exceptionally high stability for generating extreme escort forces (167 tonnes steering and 209 tonnes braking) at 10 knots and fully protected deck machinery for the harsh operating environment at 70° north latitude. In addition to severe-weather escorting and ship berthing, the vessels provide emergency response capability including long-line towing, off-ship firefighting, and oil spill containment and recovery. Accommodations for a crew of eight are generous, with a large gym and spacious ship’s office, all with exceptionally low noise levels. Robert G. Allan, P.Eng., Fuzz Alexander, P.Eng., Vince den Hertog, P.Eng., Allan Turner, P.Eng., Todd Barber, P.Eng., Siyun Qin, P.Eng., Bart Stockdill, P.Eng., Hongling Zhang, P.Eng.

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