S-3.1.01, r. 1 - Dam Safety Regulation

Section 41 Disposition versions

2023-07-06

41. Subject to section 79, every dam must, according to its class, be the subject of the minimum number of inspections indicated in the table below in accordance with the frequency mentioned therein:

Type of inspection	Number and frequency of inspections according to the dam’s class
	A	B	C	D	E
Site inspection	12/year	6/year	2/year	2/year	1/year
Inspection	1/year	1/2 years	1/5 years	1/8 years	1/10 years

Site inspections whose frequency is higher than 1 per year must be spread as evenly as possible over the year.

An inspection carried out during a year reduces the number of site inspections required for that year by 1.

For the purposes of this section, the word “year” refers to a calendar year.

O.C. 300-2002, s. 41; O.C. 901-2014, s. 9; O.C. 989-2023, s. 27.

2014-11-13

41. Every dam must, according to its class, be the subject of the minimum number of inspections indicated in the table below in accordance with the frequency mentioned therein:

___________________________________________________________________________________

Type of                           Number and frequency of inspections according to 
inspection                                        the dam’s class                
                               ____________________________________________________
               
                                A         B           C           D          E
___________________________________________________________________________________

Site inspection              12/year    6/year      2/year      2/year     1/year 
___________________________________________________________________________________

Inspection                   1/year   1/2 years   1/5 years   1/8 years  1/10 years
___________________________________________________________________________________

Site inspections whose frequency is higher than 1 per year must be spread as evenly as possible over the year.

An inspection carried out during a year reduces the number of site inspections required for that year by 1.

O.C. 300-2002, s. 41; O.C. 901-2014, s. 9.

2012-09-01

41. The monitoring of a dam by the owner includes

(1)  site inspections, which consist of routine visual inspections of the dam and are carried out to detect and monitor more apparent deficiencies and determine the general condition of a dam following major events such as floods, earthquakes and windstorms;

(2)  regular inspections, which consist of visual examinations of the dam and its main components and may include, if required, the taking of measurements, and are carried out to ensure continuous monitoring of the dam in order to detect or monitor any deficiency or deterioration; and

(3)  formal inspections, which consist of comprehensive visual examinations of the dam and of each of its components or parts and may include, if required, the taking of measurements, and are carried out to monitor the behaviour of the dam and to determine the condition of each of its components or parts.

O.C. 300-2002, s. 41.