Vancouver, British Columbia, Canada;Owner:;British Columbia Transit Authority;Completion Date:;1988;Construction Cost:;$21,000,000;Dr. Man-Chung Tang, T.Y. Lin International/DRC Consultants Inc., was special design consultant for the narrow-deck bridge girder for this dual, direct fixation transit system. He also contributed to the development of the tower configuration and aerodynamics. This is the first precast cable-stayed bridge to use a solid deck slab without transverse floor beams.;T.Y. Lin/DRC did all construction engineering and design of the special segment lifters. The erection analysis included temporary stabilizing cables and anchors in the analytical modeling of the structure during construction.

47,000 cubic meters of concrete were utilized in this 2.6 kilometer bridge. The extremely challenging 325 meter cast-in-place segmental center span was, at the time of construction, the largest single span of its type in North America.

WALTER CONSTRUCTION played an integral role in the construction of all phases of Calgary's LRT system. This post tensioned bridge which connects Prince's Island to the Kensington area, was part of the LRT expansion into the north west part of the city.

Design and construction of a 476 meter long by 20 meter wide bridge crossing the Bow River as part of the Stoney Trail N.W. dual carriage-way bypass being built by the City of Calgary. The bridge is being constructed employing the Incrementally Launched Method for precast concrete bridges. Each section is 25 meters long by 4.5 meters deep, except the ends which are 22 meters long. The bridge is a double cell box structure and will be matched case in two stages, i.e. soffit and webs followed by the deck in two adjacent casting yards. Four permanent and five temporary piers vary in height from 22 up to 33 meters. The work includes a 130 meter long by 3 meter wide pedestrian suspension bridge which is under-hung from the substructures at Piers 2 and 3.

Description:;The two lane steel deck truss bridge is the second longest bridge on the Alaska Highway which runs for more than 1000 miles through British Columbia, Yukon and Alaska. ;Total Length including Approach spans: 447 m (1466 ft );Main Span: 79 m (259 ft);Owner and Client:;Yukon Territorial Government;Scope of Work:;This riveted structure was studied by Buckland & Taylor Ltd. in 1991 as part of an evaluation of 31 bridges in Yukon Territory, and the evaluation included a review of its seismic capacity. The evaluation techniques used were state-of-the-art and were prepared by Buckland & Taylor Ltd. for insertion into the Canadian Bridge Code.;In 1992, the company was retained to do a more detailed study with a view to replacing and widening the deck (thus adding mass) and bringing the bridge up to modern seismic standards.;Once again the company's computer program, CAMIL, was used for static and dynamic analysis and it was concluded that the bridge can be brought up to modern standards.;In late 1994, the company was commissioned to provide plans and specifications for widening of the deck, increasing the traffic load carrying capacity and providing full seismic retrofit.