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$17MProject value
Renovation and constructionType of work
MontréalLocation
STMProject owner
2016Estimate year
The project
Saint-Timothée Ventilation Station, Montreal
Renovation of the Saint-Timothée ventilation station between Berri-UQAM and Beaudry metro stations. Built in the 1960s, it had reached the end of its service life; work in a dense urban, underground setting was especially complex.
Our mandate
- Turnkey bid
- Specification review
- Selection and invitation of qualified subcontractors
- Quantity takeoff for the entire project
- Assembly and presentation of the final bid
Gallery
Estimating challenges
Estimating public transit structures.
Transit structures such as ventilation shafts and underground works are built under tight constraints: deep excavation, shoring, work next to operating infrastructure and limited site access.
These constraints carry a real cost that must appear in the estimate. We take off concrete, rebar and excavation quantities and price the work methods and schedules imposed by network operations.
For this type of project, Gestion Edem delivers an estimate organized by division, with quantities, unit prices, assumptions and exclusions clearly stated. You know what the price includes, where each amount comes from and where the risks lie.
Items to watch
- Deep excavation and temporary shoring
- Thick reinforced concrete and waterproofing
- Work next to an operating network
- Restricted working hours and limited access
- Electromechanical equipment and ventilation
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