calendrier d'événements

Storm and Sanitary Sewer Network Design Handbook

BNQ 3660-004
Storm and Sanitary Sewer Network Design Handbook

In 1989, the then Ministère de l’Environnement published Directive 004 on sewer networks. This document presented the Ministère’s recommendations regarding storm and sanitary sewer network design; it was used for many years by design engineers for the design of this type of structure.

In 2018, the Ministère de l'Environnement expressed the need to update Directive 004 to modernize it and adapt it to current practices.

The BNQ was thus given a mandate by the Ministère de l'Environnement to lead work on standardization with a view to developing a consensus standard to replace Directive 004 with a municipal sewer network design handbook. The new design handbook addresses the following topics:

  • the general elements of design;
  • the presentation of a project;
  • the hydraulic design of the pipes; 
  • the structural design of the pipes; 
  • the design of a dual drainage storm sewer network (minor network and major network); 
  • the design of a sanitary sewer network;
  • the design of pumping stations;
  • overflow structures.

The design handbook takes into account certain considerations such as ease of maintenance and operation of the structures, along with aspects related to user safety regarding the facilities and buildings.

In the case of a storm sewer network, which includes a minor network and major network (dual drainage), strategic choices have to be made by the design engineer to respond to conditions such as the rainfall intensities (intensity-duration-frequency [IDF] curves) considered in order to handle climate change.

Furthermore, the notion of infrastructure resilience is also addressed in the design handbook. Among other things, a method for the analysis of hydraulic transients in the pressure pipes is provided.

Finally, flow charts illustrating the steps for the design of storm and sanitary sewers are also presented to guide the design engineer.

  • Download Handbook (French only)
    12816 FRN BNQ 3660-004 Manuel de conception des réseaux d'égout pluvial et sanitaire
    PROJECT IN PROCESS (planned date for publication: June 2024)
  • Committee members
    Number of committee members : 17
    Mr. Philippe BarceloParallèle 54 Expert-Conseil (P54)
    Mr. François BeaudoinTetra Tech QI
    Mr. David BeauséjourCentre d’expertise et de recherche en infrastructures urbaines (CERIU)
    Mr. Marc BélangerAssociation des ingénieurs municipaux du Québec (AIMQ)
    Mr. Saad BennisÉcole de technologie supérieure (ÉTS) de Montréal
    Mr. Martin Bouchard ValentineMinistère de l'Environnement et de la Lutte contre les changements climatiques
    Ms. Sophie DuchesneInstitut national de la recherche scientifique - Centre Eau Terre Environnement (INRS-ETE)
    Mr. Driss EllassraouiVille de Laval
    Mr. Musandji FuambaPolytechnique Montréal
    Mr. Frédéric GaudetVille de Sherbrooke
    Mr. Marc-André LabelleCentre des technologies de l'eau
    Mr. Richard LizotteVille de Saint-Jérôme
    Mr. Kaven MasséMunicipalité régionale de comté de l'Érable
    Mr. Philip MorinMinistère des Transports et de la Mobilité durable du Québec (MTMD)
    Mr. Yvon PlanteGroupe Hélios
    Mr. Jean-François RenaudVille de Québec
    Mr. Gilles RivardLasalle NHC
  • Contact

    Customer service
    Bureau de normalisation du Québec
    Tel.: 418-652-2238 / 1-800-386-5114, ext. 2437
    This email address is being protected from spambots. You need JavaScript enabled to view it.