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Ottawa Light Rail Transit - Execution
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| Service: | Site supervision services, engineering support and monitoring assessment. 24/7 presences on site to facilitate RES process and implement design requirements on site.
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| Estimated cost: | Commencement: | February 01, 2012
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Completion date: | January 01, 2019
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| Location: | 259 Albert Street Ottwa, ON K1R 7Z0 Canada |
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| Geology description: | The geology varied between competent limestone and fractured shale. A soft ground section included variable glacial till deposits of sand, silt and clay layers and a groundwater table close to ground surface. |
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| Bid cost: | Final cost: | $2.1 billion CAD
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Description
Ottawa's Confederation Line runs from Tunney's Pasture station in the west to Blair station in the east, is 12.5 km long and includes 15 stations. The central piece is a 2.5 km long tunnel, running under the central business district of the city and including three underground stations. The twin track running tunnel and the three underground stations were constructed using the mined construction method in order to minimise surface disruption. The underground stations are located directly adjacent to existing, sensitive and historic buildings and required strict adherence to design and risk mitigation processing during construction. The Dr. G. Sauer & Partners on site team supported the contractor to meet these requirements.
