S-3.1.01, r. 1 - Dam Safety Regulation

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SCHEDULE III
(s. 14)
VARIABLE PARAMETERS
(Dam vulnerability numerical values)
Dam age
__________________________

Concrete Dam
__________________________

Age
(years) Points

__________________________
This category includes the following dam types:
0 1 concrete gravity, concrete gravity embankment,
__________________________ concrete arch, stone-filled or earth-filled steel
sheet-pile cribs, concrete buttresses, free weir -
5 1.5 concrete shield, rockfill dam with concrete facing,
__________________________ steel sheet-piling.

10 2 The points for intermediate dam ages shall be
__________________________ determined by considering that the points vary
linearly between the various age values.
20 3
__________________________

40 7
__________________________

50 9
__________________________

55 and over 10
__________________________
__________________________

Embankment Dam
__________________________

Age
(years) Points

__________________________

0 8
__________________________

5 7.5 This category includes the following dam types:
__________________________ concrete barrier or steel sheet-piling upstream of
earthfill dam, rockfill dam with upstream
10 6.5 earthfilled core and earthfill.
__________________________
The points for intermediate dam ages shall be
15 5 determined by considering that the points vary
__________________________ linearly between the various dam age values.

20 4
__________________________

25 3
__________________________

30 2.5
__________________________

40 2
__________________________

50 1.5
__________________________

60 and over 1
__________________________
__________________________

Timber Dam
__________________________

Age
(years) Points

__________________________
This category includes the following dam types:
0 1 stone-filled or earth-filled timber cribs and timber
__________________________ buttresses (cribs or dead shores).

5 1.5 The points for intermediate dam ages shall be
__________________________ determined by considering that the points vary
linearly between the various dam age values.
10 2
__________________________

20 8
__________________________

30 and over 10
__________________________
__________________________

Rockfill Free Weir
__________________________

Age
(years) Points

__________________________
This category includes the following dam types:
≤5 5 rockfill free weir and rockfill weir.
__________________________
The points for intermediate dam ages shall be
10 6 determined by considering that the points vary
__________________________ linearly between the various dam age values, except
a dam of 5 years or less, which is always assigned
15 7 5 points.
__________________________

20 8
__________________________

25 9
__________________________

30 and over 10
__________________________

Seismicity
__________________________

Seismic Zone Points
__________________________

1 1
__________________________

2 1
__________________________

3 2
__________________________

4 6
__________________________

5 8
__________________________

Reliability of discharge facilities
__________________________

Reliability Points
__________________________

Satisfactory 1
__________________________

Acceptable 5
__________________________

Unsatisfactory
or undetermined 10
__________________________

Dam condition
__________________________

Condition Points
__________________________

Very good 1
__________________________

Good 3
__________________________

Acceptable 5
__________________________

Poor or undetermined 10
__________________________
Very good: The dam does not show evidence of any deficiency or has minimal confined deterioration considered normal or of no consequence.
Good: The dam shows evidence of only minor deterioration or deficiencies that do not affect the proper operation of its components.
Acceptable: The dam shows evidence of deterioration requiring repairs without however immediately endangering the structure; a dam in this state requires maintenance and repair work in the immediate or near future without which the dam would become increasingly vulnerable. The dam may also show evidence of deficiencies which do not affect its immediate safety but which require close monitoring.
Poor or undetermined: The dam shows evidence of single or multiple severe deterioration that could affect its stability or make certain parts inoperable, or the dam shows evidence of serious deficiencies likely to endanger its safety or the condition of the dam cannot be ascertained.
O.C. 300-2002, Sch. III; O.C. 17-2005, s. 18; O.C. 402-2011, s. 15.