INNOVATION July-August 2013

. 2013 PROJECT HIGHLIGHTS

2012

CCGS Vladykov The CCGS Vladykov is the first of three new near-shore fisheries research vessels to be delivered to the Canadian Coast Guard. With its sister vessels, it will conduct scientific research in the Newfoundland and Labrador region. Secondary missions include search and rescue, environmental response and the support of marine programs for other government agencies. CCGS Vladykov met or exceeded all performance expectations with outstanding station keeping and maneuvrability and achieving a free running speed of over 10.5 knots. The vessel has been outfitted for a complement of up to 11 people, with space for additional science personnel on day trips. The engineering team: Hans Muhlert, P.Eng.; Rollie Webb; Erik Johnston, P. Eng.; and Lawren Best.

Chilliwack Wastewater Treatment Plant Digester 3 The City of Chilliwack has constructed a new anaerobic digester with design features that result in reduced process energy needs and increased production of biogas which is a renewable energy source. Unique features for the digester are roof-mounted linear motion mixers (LMMs) and a submerged roof design. The LMM technology provides good mixing characteristics for the digester contents at minimal energy usage, and the submerged roof design improves overall efficiency in the production and recovery of biogas. The project includes the installation of a new boiler that operates primarily on biogas produced from the

digester. The boiler generates heat energy from the captured biogas to maintain the operating temperature of the digestion process. As a future addition, the design of the biogas collection system includes a membrane biogas holder that will improve process control in storage and utilization of biogas from the digester.

Owner: City of Chilliwack. Design: AECOM.

Barnston/Maple Ridge Pump Station – External Piping This project included installation of two 1,350 mm diameter steel water mains by trenchless methods underneath Lougheed Highway to connect the future pump station to existing regional water mains. Construction began in December 2011 and was completed in September 2012. The 1,350 mm diameter water mains were installed inside 1,700 mm diameter steel casings, 100 m and 70 m in length. The casings were installed using the pilot tube method, which involves staged upsizing of a pilot tube by auger boring. The 1,700 mm diameter casings are believed to be the largest successfully installed over a 100 m length using the pilot tube method in North America. Owner: Greater Vancouver Water District. GVWD Project Managers: Bernie Vaughan, P.Eng.; Joe Linseman, P.Eng.; Damon Gosper, P.Eng. Geotechnical engineers: Golder Associates (Naresh Koirala, P.Eng.; Tom Bryski, P.Eng.). General Contractor: Pedre Contractors. Trenchless Sub-contractor: Kamloops Augering and Boring.

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