S-3.1.01, r. 1 - Dam Safety Regulation

Section 49 Disposition versions

2023-07-06

49. The report documenting the dam safety review referred to in section 48 must set out the procedure followed by the engineer in charge of the review and include, depending on the component in question, the engineer’s comments, opinions and recommendations. The report must also contain the data, methods and design assumptions on which the analyses and checks were based. The report must include

(1)  a brief description of the instrumentation if the dam is so equipped, an assessment of their condition and their effectiveness and the opinion of the engineer in charge on the readings;

(2)  a description of the maintenance and repair work carried out since the last safety review or, in the absence of such a review, for the period considered appropriate by the engineer in charge;

(3)  the opinion of the engineer in charge on the functionality and reliability of the discharge facilities;

(4)  a description of the compiled observations and deficiencies discovered, including comments on them, as well as the opinion of the engineer in charge on the condition of the dam and on the impact of the work that was carried out on the safety of the dam;

(5)  the opinion of the engineer in charge on the adequacy of the dam design in relation to good practice and to the minimum safety standards applicable;

(5.1)  the opinion of the engineer in charge on the liquefaction potential of the dam and its foundation and the data on which that opinion is based, unless the dam failure consequence category is “very low” or “low”;

(6)  the stability calculations and geotechnical data required to support the opinions referred to in subparagraphs 5 and 5.1, taking into account the validation referred to in subparagraph b of subparagraph 2 of the third paragraph of section 48, unless the dam failure consequence category is “very low” or “low”;

(6.1)  the results of the analysis of the topography of the reservoir rim;

(7)  if applicable, the recommendations of the engineer in charge as to the need for an intervention at the locations, on the reservoir rim, through which overflow could occur during a flood equal to the dam’s safety check flood;

(8)  the opinion of the engineer in charge concerning the need for remedial work to ensure the dam’s safety and, if applicable, the engineer’s recommendations in respect of the remedial work that, considering in particular the elements listed in section 48, must be carried out and the engineer’s opinion on the time required to carry out the work;

(9)  if remedial work is required to ensure the dam’s safety, the opinion of the engineer in charge on the temporary measures and work required to ensure the dam’s safety until the remedial work is carried out; and

(10)  the recommendations of the engineer in charge in respect of the class and dam failure consequence category that should apply to the dam, together with, as the case may be, the dam failure analysis, rough inundation maps or characterization of the area referred to in section 18.

The report must also include

(1)  the official name of the dam and the particulars of its location;

(2)  the name and address of the dam owner;

(3)  the name and position of the owner’s representative responsible for dam safety;

(4)  a brief description of the dam and its geometric size;

(5)  a description of available data pertinent to the dam safety review, such as the catchment hydrologic and hydraulic characteristics at the time of dam design, the geology, geotechnics and seismicity of the zone in which the dam is located and the characteristics of the foundation and the materials used to build the dam;

(6)  the name and address of the engineer in charge of the dam safety review;

(7)  where applicable, the date on which the last dam safety review was carried out; and

(8)  a list of the reference documents used in the dam safety review.

Where an impounded water management plan or emergency action plan must be drawn up for the dam in accordance with Division III, the dam’s owner must also append to the report a notice stating that the plans have been drawn up or reviewed and indicating the authority to which the plans or a summary of the plans have been sent in accordance with section 33 or 39.

O.C. 300-2002, s. 49; O.C. 901-2014, s. 14; O.C. 989-2023, s. 35.

2014-11-13

49. The report documenting the dam safety review referred to in section 48 must set out the procedure followed by the engineer in charge of the review and include, depending on the component in question, the engineer’s comments, opinions and recommendations. The report must also contain the data, methods and design assumptions on which the analyses and checks were based. The report must include

(1)  a brief description of the instrumentation if the dam is so equipped, an assessment of their condition and their effectiveness and the opinion of the engineer in charge on the readings;

(2)  a description of the maintenance and repair work carried out since the last safety review or, in the absence of such a review, for the period considered appropriate by the engineer in charge;

(3)  the opinion of the engineer in charge on the functionality and reliability of the discharge facilities;

(4)  a description of the compiled observations and deficiencies discovered, including comments on them, as well as the opinion of the engineer in charge on the condition of the dam and on the impact of the work that was carried out on the safety of the dam;

(5)  the opinion of the engineer in charge on the adequacy of the dam design in relation to good practice and to the minimum safety standards;

(5.1)  the opinion of the engineer in charge on the liquefaction potential of the dam and its foundation and the data on which that opinion is based;

(6)  a description of the safety devices, checks and tests that have been carried out, as well as the opinion of the engineer in charge on their functionality and adequacy;

(7)  if applicable, the recommendations of the engineer in charge as to the need for an intervention at the locations, on the reservoir rim, through which overflow could occur during a flood equal to the dam’s safety check flood;

(8)  if applicable, the recommendations of the engineer in charge in respect of the remedial work that, considering in particular the elements listed in section 48, must be carried out to ensure the dam’s safety and the engineer’s opinion on the time required to carry out the work;

(9)  if applicable, the opinion of the engineer in charge on the temporary measures and work required to ensure the dam’s safety until the remedial work is carried out; and

(10)  the recommendations of the engineer in charge in respect of the class and dam failure consequence category that should apply to the dam, together with, as the case may be, the dam failure analysis, rough inundation maps or characterization of the area referred to in section 18.

The report must also include

(1)  the official name of the dam as established by the Commission de toponymie, and the particulars of its location;

(2)  the name and address of the dam owner;

(3)  the name and position of the owner’s representative responsible for dam safety;

(4)  a brief description of the dam and its geometric size;

(5)  a description of available data pertinent to the dam safety review, such as the catchment hydrologic and hydraulic characteristics at the time of dam design, the geology, geotechnics and seismicity of the zone in which the dam is located and the characteristics of the foundation and the materials used to build the dam;

(6)  the name and address of the engineer in charge of the dam safety review;

(7)  where applicable, the date on which the last dam safety review was carried out; and

(8)  a list of the reference documents used in the dam safety review.

If the review of the impounded water management plan results in the drawing up of a new plan, a summary of the plan that complies with the second paragraph of section 33 must be appended to the report.

O.C. 300-2002, s. 49; O.C. 901-2014, s. 14.

2012-09-01

49. The report documenting the dam safety review must set out the procedure followed by the engineer in charge of the review and include, depending on the component in question, the engineer’s comments, opinions and recommendations. The report must also contain the data, methods and design assumptions on which the analyses and checks were based. The report must include

(1)  a brief description of the instrumentation if the dam is so equipped, an assessment of their condition and their effectiveness and the opinion of the engineer in charge on the readings;

(2)  a description of the maintenance and repair work carried out since the last safety review or, in the absence of such a review, for the period considered appropriate by the engineer in charge;

(3)  the opinion of the engineer in charge on the functionality and reliability of the discharge facilities;

(4)  a description of the compiled observations and deficiencies discovered, including comments on them, as well as the opinion of the engineer in charge on the condition of the dam and on the impact of the work that was carried out on the safety of the dam;

(5)  the opinion of the engineer in charge on the adequacy of the dam design in relation to good practice and to the minimum safety standards;

(6)  a description of the safety devices, checks and tests that have been carried out, as well as the opinion of the engineer in charge on their functionality and adequacy;

(7)  a summary of the results of the verifications carried out under subparagraphs 1, 2 and 3 of section 48, an analysis of the results and the opinion of the engineer in charge on the structural and functional safety of the dam;

(8)  the recommendations of the engineer in charge in respect of remedial measures that must be implemented to ensure that the dam is safe and complies with good practice and with the minimum safety standards, the time required to implement those measures and, where applicable, the work or temporary measures that must be carried out to ensure that the dam remains safe until the remedial measures are implemented; and

(9)  the recommendations of the engineer in charge in respect of the appropriate class and dam failure category for the dam. Where required, the dam failure analysis, rough maps or characterization referred to in section 18 applicable to the consequence category considered appropriate by the engineer must be appended to the report.

The report must also include

(1)  the official name of the dam as established by the Commission de toponymie, and the particulars of its location;

(2)  the name and address of the dam owner;

(3)  the name and position of the owner’s representative responsible for dam safety;

(4)  a brief description of the dam and its geometric size;

(5)  a description of available data pertinent to the dam safety review, such as the catchment hydrologic and hydraulic characteristics at the time of dam design, the geology, geotechnics and seismicity of the zone in which the dam is located and the characteristics of the foundation and the materials used to build the dam;

(6)  the name and address of the engineer in charge of the dam safety review;

(7)  where applicable, the date on which the last dam safety review was carried out; and

(8)  a list of the reference documents used in the dam safety review.

If the review of the impounded water management plan results in the drawing up of a new plan, a summary of the plan that complies with the second paragraph of section 33 must be appended to the report.

O.C. 300-2002, s. 49.