INNOVATION May-June 2014

2014 ACEC-BC Awards for Engineering Excellence

The Awards for Engineering Excellence celebrate outstanding achievement in BC’s consulting engineering industry. This year, the Association of Consulting Engineers British Columbia (ACEC-BC) recognized the following projects for innovation and technical excellence in six award categories: the upper slopes of the ravine, replicating predevelopment stream form and function, arresting the transport and deposit of sediment downstream and constructing the work in an environmentally sensitive manner. Award of Merit Surrey Bend Habitat Enhancement Project Consultant: exp Services Inc. | Client: Kerr Wood Leidal Associates Ltd. The Habitat Enhancement Project involved the construction of 2.2 km of tidal channels to provide 20,000 m 2 of tidal slough habitat and 60,000 m 2 of riparian habitat in a predominately peat bog area. The embankments were constructed of peat— normally a waste product—saving the team approximately 40,000 m 3 of imported sand and gravel materials, as well as associated trucking costs and carbon emissions. capable of absorbing the impact of woody debris and retaining it, while allowing water to pass through. In the event of a flow, only the net needs replacing. The barrier location was carefully chosen to optimize effective protection for both volume and impact forces and minimal construction in a fish-bearing creek. Award of Merit CoquitlamUVDisinfection Project –Water Treatment Facilities Consultant: Ausenco Engineering Canada Inc. | Client: Metro Vancouver for a project of this magnitude, such as developing the majority of the highway design using 3D modelling and Building Information Management methodologies. Award of Merit Milton-Madison Bridge Replacement Project Consultant: Buckland &Taylor | Client: Indiana Department ofTransportation; Kentucky Transportation Cabinet; andWalsh Construction Inc. For the Milton-Madison Bridge upgrade, the longest truss slide in North America, the entire superstructure was replaced with a newwider truss bridge and new approach spans. Most of the supporting piers were rehabilitated existing piers. The existing bridge remained open to traffic during pier rehabilitation, while the new bridge superstructure was constructed alongside on temporary piers. Temporary access ramps allowed the new approaches to be completely built in their final position. Award of Merit BowRiver Pedestrian Bridge and Utility Crossing Consultant: Fast +Epp | Client: StructureCraft Builders Inc. In addition to permitting crossing, the Bow River bridge needed to carry new sanitary pipes to prevent spillage from the old ones. The final design features an 80-metre clear span, one of the longest timber bridges of its kind and a slender 4-metre width. To meet new requirements under Health Canada’s Guidelines for Canadian Drinking Water Quality, the Ausenco team upgraded the existing water treatment facilities and added an ultraviolet disinfection plant. Construction activities and the finished facility were managed and designed to protect the extensive wildlife and the terrestrial and aquatic systems, while reflecting the goals outlined in Metro Vancouver’s Sustainable Region Initiative.

NATURAL RESOURCE AND HABITAT Award of Excellence John Matthews Ravine Restoration Project Consultant: Associated Engineering | Client: City of Burnaby Over the past five years, the John Matthews Creek experienced several large-scale erosion events in its upper reaches and deposition of significant volumes of sediment in the lower reaches. The restoration project challenges included stabilizing

MUNICIPA L Award of Excellence Mosquito Creek Debris Flow Net Consultant: Tetra Tech | Client: District of North Vancouver

This low-cost, less-intrusive solution now protects the public from debris floods in potential landslide areas using a flexible barrier,

TRANSPORTATION Lieutenant Governor’s Award of Excellence • Award of Excellence Port Mann/Highway 1 Improvement Project - OnshoreWorks Consultant: H5M, a JointVenture by HatchMott MacDonald Ltd. andMMMGroup | Kiewit/Flatiron General Partnership The $2.5-billion, 37-km Port Mann/Highway 1 Improvement Project is a major element of BC’s Gateway Program, established to address growing regional congestion, expanding populations and multi-modal connectivity. The team implemented a number of technical firsts

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