Seven infrastructure owners (Bell, CSEM, Gazifère, Énergir, Hydro-Québec, Telus, and Vidéotron) have developed joint directives when working near their underground infrastructures. Info-Excavation proudly collaborated to coordinate the project. Discover the new version updated in April 2023.

Consult the guidelines

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2023 Modifications

Many changes have been made to the latest version.

The following is a non-exhaustive description of the major changes and additions:

  • Sewer Cross Bores: addition of  CSEM
  • Modification to section 1.2.6: update of some minimum clearance distances
  • Addition to section 2.2: locate reports

For more details, see version 2023 with correction marks

2022 Modifications

Many changes have been made to the latest version.

The following is a non-exhaustive description of the major changes and additions:

  • Addition to section Vertical Drilling
  • Addition to section 1.2.5 Special requirements for Natural Gas
  • Changes to Section 1.2.6 Help for Project Planning
  • Addition to Section 2.5 Overloading, Traffic and Structures above the Buffer Zone
  • Modification to Gazifère’s requirements tables in Section 3.5 Support
  • Amendment to Section 3.8 Blasting, Dynamic Compaction and Pile-Driving (continued)

For more details, see version 2022 with correction marks

2021 Modifications

  • Introduction : Addition of hydrodemolition to the list of ground disturbance works.
  • 3.2 Soft Excavation : Modification of the maximum water pressure during soft excavation for the CSEM and Hydro-Québec.

  • 3.5 Support: Modification in the dimensions of supporting beam and maximum span between the support beams for Gazifère.

These guidelines are the result of a great collaboration. Participants and their organizations have shown openness and drive to develop a single document that will facilitate understanding and standardize guidelines for all those who work near their underground infrastructure. Info-Excavation would like to thank:

  • Alfredo Tobar (Énergir)
  • Benoît Garneau (Énergir)
  • Céline Bourson (Info-Excavation)
  • Danny Matton (Bell)
  • David Pelletier Gauvin (Telus)
  • François Boivin (Telus)
  • François Desjardins (Info-Excavation)
  • Ghislain St-Laurent (Hydro-Québec)
  • Ilyas Bajji (Vidéotron)
  • Isabelle Pilote (Énergir)
  • Jean Mercier (CSEM / Commission des services électriques de Montréal)
  • Jean-François Lapointe (Vidéotron)
  • Natalia Da Costa Pacheco (Gazifère)
  • Nathalie Moreau (Info-Excavation)
  • Pierre Duval (Hydro-Québec)
  • Roger Sarrazin (Vidéotron)
  • Réal Guillot (Hydro-Québec)
  • Simon Peloquin (Hydro-Québec)
  • Sylvain Belec (Hydro-Québec)
  • Sylvain Courchesne (Énergir)
  • Yannick Bouchard (Vidéotron)

These guidelines are intended for anyone planning or carrying out work in the ground near underground infrastructure. It indicates the directives to be followed and specifies the general technical requirements of the infrastructure owners participating in this document to adequately anticipate the operations, delays, and costs occasioned by these requirements. However, the design of the work and the choice of working methods and practices that will meet these requirements are entirely the responsibility of the performers.

For any comments or suggestions related to these guidelines, write to us at [email protected].