Canadian Dam Association Bulletin - Winter 2018 - 23

Sub-basin
Name

Sub-basin ID

Sub-basin
Area

1-hr PMP
(mm)

6-hr PMP
(mm)

12-hr PMP
(mm)

24-hr PMP
(mm)

48-hr PMP
(mm)

W150

46

58 km²

36

125

213

307

347

W200

47

121 km²

42

145

247

356

402

W300

49

34 km²

36

124

211

305

345

W350

52

81 km²

38

131

224

323

365

W400

53

50 km²

42

145

247

356

403

W450

55

353 km²

47

161

275

397

448

W500

56

89 km²

41

142

243

350

396

W550

73

77 km²

35

121

206

298

337

Figure 11: Sub-basin average 863 km² general storm PMP for the drainage above the SR1 diversion

Sub-basin
Name

Sub-basin
ID

Sub-basin
Area

1-hr PMP
(mm)

2-hr PMP
(mm)

3-hr PMP
(mm)

4-hr PMP
(mm)

5-hr PMP
(mm)

6-hr PMP
(mm)
160

W150

46

58 km²

116

122

128

141

150

W200

47

121 km²

112

118

124

136

145

155

W300

49

34 km²

134

141

148

163

173

186

W350

52

81 km²

153

161

169

186

198

212

W400

53

50 km²

222

233

244

269

286

307

W450

55

353 km²

191

201

211

232

247

264

W500

56

89 km²

214

225

236

259

276

296

W550

73

77 km²

97

102

107

118

126

135

Figure 12: Sub-basin average local storm PMP using the Glen Ullin, ND June 1966 1-hour rainfall pattern

Figure 13: The sub-basin included in the PMP analysis for Scenario 3 -
upstream of SR1 dam (31 km2)

Sub-basin
Name

Sub-basin
ID

Sub-basin
Area

1-hr PMP
(mm)

2-hr PMP
(mm)

3-hr PMP
(mm)

4-hr PMP
(mm)

5-hr PMP
(mm)

6-hr PMP
(mm)

W600

78

31 km²

157

195

228

245

264

286

Figure 14: Comparison of the PMP Values with the 24-hour 100-Year Precipitation Frequency

REFERENCES

St. Mary reservoir, Hydrology Branch,

Alberta Environment, 1985: Probable maximum flood

Alberta Environment, Edmonton, Alberta,

for the Oldman River dam, Hydrology Branch,

25 pp.

Canadian Dam Association (CDA), 2007,
Dam Safety Guidelines, Edmonton, Alberta.
Corrigan, P., D.D. Fenn, D.R. Kluck, and
J.L. Vogel, 1999: Probable Maximum

Alberta Environment, Edmonton, Alberta, 217 pp.

Alberta Transportation, 2004: Guidelines On

Alberta Environment, 1988: Probable maximum

Extreme Flood Analysis, Transportation

P r ecipit at ion

flood for Waterton Reservoir, Hydrology

and Civil Engineering Division, Civil Project

Hydrom eteorological Report Number 59,

Branch, 112 pp.

National Weather Service, National Oceanic

Branch, Alberta Environment, Edmonton,
Alberta, 65 pp.

for

California,

Atmospheric Environment Service, 1985:

and Atmospheric Administration, U.S.

Alberta Environment, 1989: Probable maximum

Probable Storm rainfall in Canada,

Department of Commerce, Silver Spring,

flood for the St. Mary River basin above

Environment Canada, Downsview, Ontario.

Md, 392 pp.

Canadian Dam Association * Winter 2018

23



Table of Contents for the Digital Edition of Canadian Dam Association Bulletin - Winter 2018

BOARD OF DIRECTORS
PRESIDENT’S MESSAGE
UPDATING PMP FOR THE ELBOW RIVER: COMPLEX TERRAIN, UNIQUE SOLUTIONS
KELOWNA 2017
CDA AWARDS
ANNUAL GENERAL MEETING 2017
YOUNG PROFESSIONALS UPDATE
DAMS AND DIKES, WIKI STYLE
2017 FINANCE REPORT
CDA 2018 CONFERENCE: THE MANAGEMENT OF AGING DAMS
CDA NEWS BRIEF
BUYERS’ GUIDE AND TRADE LIST
Canadian Dam Association Bulletin - Winter 2018 - Intro
Canadian Dam Association Bulletin - Winter 2018 - cover1
Canadian Dam Association Bulletin - Winter 2018 - cover2
Canadian Dam Association Bulletin - Winter 2018 - 3
Canadian Dam Association Bulletin - Winter 2018 - 4
Canadian Dam Association Bulletin - Winter 2018 - 5
Canadian Dam Association Bulletin - Winter 2018 - 6
Canadian Dam Association Bulletin - Winter 2018 - BOARD OF DIRECTORS
Canadian Dam Association Bulletin - Winter 2018 - PRESIDENT’S MESSAGE
Canadian Dam Association Bulletin - Winter 2018 - 9
Canadian Dam Association Bulletin - Winter 2018 - UPDATING PMP FOR THE ELBOW RIVER: COMPLEX TERRAIN, UNIQUE SOLUTIONS
Canadian Dam Association Bulletin - Winter 2018 - 11
Canadian Dam Association Bulletin - Winter 2018 - 12
Canadian Dam Association Bulletin - Winter 2018 - 13
Canadian Dam Association Bulletin - Winter 2018 - 14
Canadian Dam Association Bulletin - Winter 2018 - 15
Canadian Dam Association Bulletin - Winter 2018 - 16
Canadian Dam Association Bulletin - Winter 2018 - 17
Canadian Dam Association Bulletin - Winter 2018 - 18
Canadian Dam Association Bulletin - Winter 2018 - 19
Canadian Dam Association Bulletin - Winter 2018 - 20
Canadian Dam Association Bulletin - Winter 2018 - 21
Canadian Dam Association Bulletin - Winter 2018 - 22
Canadian Dam Association Bulletin - Winter 2018 - 23
Canadian Dam Association Bulletin - Winter 2018 - 24
Canadian Dam Association Bulletin - Winter 2018 - 25
Canadian Dam Association Bulletin - Winter 2018 - KELOWNA 2017
Canadian Dam Association Bulletin - Winter 2018 - 27
Canadian Dam Association Bulletin - Winter 2018 - CDA AWARDS
Canadian Dam Association Bulletin - Winter 2018 - 29
Canadian Dam Association Bulletin - Winter 2018 - ANNUAL GENERAL MEETING 2017
Canadian Dam Association Bulletin - Winter 2018 - 31
Canadian Dam Association Bulletin - Winter 2018 - YOUNG PROFESSIONALS UPDATE
Canadian Dam Association Bulletin - Winter 2018 - 33
Canadian Dam Association Bulletin - Winter 2018 - DAMS AND DIKES, WIKI STYLE
Canadian Dam Association Bulletin - Winter 2018 - 35
Canadian Dam Association Bulletin - Winter 2018 - 2017 FINANCE REPORT
Canadian Dam Association Bulletin - Winter 2018 - 37
Canadian Dam Association Bulletin - Winter 2018 - 38
Canadian Dam Association Bulletin - Winter 2018 - 39
Canadian Dam Association Bulletin - Winter 2018 - CDA 2018 CONFERENCE: THE MANAGEMENT OF AGING DAMS
Canadian Dam Association Bulletin - Winter 2018 - 41
Canadian Dam Association Bulletin - Winter 2018 - CDA NEWS BRIEF
Canadian Dam Association Bulletin - Winter 2018 - 43
Canadian Dam Association Bulletin - Winter 2018 - 44
Canadian Dam Association Bulletin - Winter 2018 - BUYERS’ GUIDE AND TRADE LIST
Canadian Dam Association Bulletin - Winter 2018 - 46
Canadian Dam Association Bulletin - Winter 2018 - cover3
Canadian Dam Association Bulletin - Winter 2018 - cover4
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