Recent Flooding and Flood Mitigation in Manitoba
Recent Flooding and Flood Mitigation in Manitoba
Recent Flooding and Flood Mitigation in Manitoba
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<strong>Recent</strong> <strong><strong>Flood</strong><strong>in</strong>g</strong><br />
<strong>and</strong><br />
<strong>Flood</strong> <strong>Mitigation</strong><br />
<strong>in</strong> <strong>Manitoba</strong><br />
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •<br />
Eugene F. Kozera, P. Eng.<br />
Director, Water Control System<br />
Management Branch<br />
Water Stewardship
Saskatchewan R.<br />
Souris<br />
Red<br />
W<strong>in</strong>nipeg
Flow (cubic feet per second)<br />
250,000<br />
200,000<br />
1826<br />
Red River:<br />
natural <strong>in</strong><br />
W<strong>in</strong>nipeg<br />
150,000<br />
1852<br />
1950 1979<br />
1997 2 0<br />
0<br />
9<br />
2<br />
0<br />
1<br />
1<br />
100,000<br />
50,000<br />
0
Flow (cubic feet per second)<br />
50,000<br />
45,000<br />
40,000<br />
1882<br />
Ass<strong>in</strong>ibo<strong>in</strong>e River<br />
at Br<strong>and</strong>on<br />
2011<br />
35,000<br />
30,000<br />
1904<br />
1995<br />
25,000<br />
20,000<br />
1923<br />
1955<br />
1976<br />
15,000<br />
10,000<br />
5,000<br />
0
Flow (cubic feet per second)<br />
30,000<br />
Souris River at Westhope<br />
25,000<br />
2011<br />
20,000<br />
1882<br />
15,000<br />
1976<br />
10,000<br />
5,000<br />
0
Ass<strong>in</strong>ibo<strong>in</strong>e River dikes east of Portage<br />
Ass<strong>in</strong>ibo<strong>in</strong>e R. dikes
1950 flood<br />
Damages: over $700 M<br />
100,000 people evacuated<br />
10,000 homes flooded
W<strong>in</strong>nipeg’s<br />
Primary Dikes<br />
•Built <strong>in</strong> 1950 <strong>and</strong> 1951<br />
•Top of dikes: 4 ft below 1950 peak water level<br />
Cost: $4.6 million<br />
(Canada, <strong>Manitoba</strong>, City of W<strong>in</strong>nipeg)
Br<strong>and</strong>on<br />
Portage<br />
W<strong>in</strong>nipeg
Br<strong>and</strong>on<br />
Portage<br />
Diversion<br />
Portage<br />
W<strong>in</strong>nipeg
Br<strong>and</strong>on<br />
Portage<br />
W<strong>in</strong>nipeg
1966 Red River Valley flood<br />
La<br />
Salle<br />
St. Adolphe<br />
River<br />
Se<strong>in</strong>e<br />
Se<strong>in</strong><br />
River<br />
River Diversion<br />
Mann<strong>in</strong>g<br />
11 - A Dra<strong>in</strong><br />
Canal<br />
Norquay<br />
Channel<br />
Brunkild<br />
D - 20<br />
Dra<strong>in</strong><br />
Tourond Creek<br />
L.<br />
Morris<br />
R.<br />
Morris<br />
River<br />
Rosenort<br />
River<br />
Rat<br />
R.<br />
1967-72: $5.4 M<br />
1980-89: $5.4 M<br />
Tobacco<br />
Creek<br />
Graham<br />
Deadhorse<br />
Shan non<br />
Creek<br />
Shannon<br />
Creek<br />
Creek<br />
Hespeler<br />
Creek<br />
Dra<strong>in</strong><br />
Morris<br />
Deadhorse Creek<br />
Plum R.<br />
Red<br />
Marsh<br />
River<br />
St. Jean Baptiste<br />
Roseau<br />
River<br />
RosenheimDra<strong>in</strong><br />
Buffalo<br />
Ck<br />
Letellier<br />
Dom<strong>in</strong>ion<br />
Ma<strong>in</strong> Dr.<br />
City<br />
Morris<br />
Emerson
1997 Red<br />
River Valley<br />
flood
Morris
<strong>Flood</strong> preparation, fight<strong>in</strong>g,<br />
damages: $500 M<br />
Ste. Agathe<br />
Evacuations: 28,000 people
Se<strong>in</strong><br />
River<br />
La<br />
Community flood protection<br />
11 - A Dra<strong>in</strong><br />
14 new or exp<strong>and</strong>ed<br />
Norquay<br />
communities dike<br />
Channel<br />
Salle<br />
River<br />
Ste. Agathe<br />
Se<strong>in</strong>e River Diversion<br />
Mann<strong>in</strong>g<br />
Niverville<br />
D - 20 Dra<strong>in</strong><br />
Tourond Creek<br />
Canal<br />
$35.5 M<br />
Rosenort<br />
L.<br />
Morris<br />
R.<br />
Morris<br />
Rat<br />
Aubigny<br />
R.<br />
Tobacco<br />
Graham<br />
Shan non<br />
Creek<br />
Shannon<br />
Creek<br />
Creek<br />
Riverside<br />
River<br />
Creek<br />
Lowe Farm<br />
Red<br />
River<br />
Marsh<br />
River<br />
St. Pierre<br />
Jolys<br />
Deadhorse<br />
Creek<br />
Rosenfeld<br />
Hespeler<br />
Dra<strong>in</strong><br />
Deadhorse Creek<br />
Plum R.<br />
River<br />
Roseau<br />
RosenheimDra<strong>in</strong><br />
Buffalo<br />
Ck<br />
Gretna<br />
Emerson<br />
Dom<strong>in</strong>ion<br />
Ma<strong>in</strong> Dr.<br />
City
Rais<strong>in</strong>g<br />
Dik<strong>in</strong>g<br />
Individual flood protection:<br />
1,750 structures; $59 M<br />
Reta<strong>in</strong><strong>in</strong>g wall<br />
Structural dike
W<strong>in</strong>nipeg<br />
secondary<br />
r<strong>in</strong>g dikes<br />
– 23 sites considered<br />
– 9 sites short-listed<br />
– $10.4 M
<strong>Manitoba</strong><br />
Enhanced hydrometric network<br />
Exist<strong>in</strong>g Stations<br />
Upgraded Stations<br />
Reactivated Stations<br />
New Stations
<strong>Flood</strong>way Expansion - Channel<br />
Excavation<br />
$665 M
- bridges
- Inlet control structure
- west dike
% of normal soil<br />
Moisture at freeze-up<br />
5 th wettest September<br />
through February
May 2011:<br />
% of normal<br />
precipitation
June 19: major ra<strong>in</strong> storm
June 2011 Precipitation: % of normal<br />
175<br />
171<br />
165<br />
324<br />
310<br />
172<br />
191 142<br />
215
Flow (cubic feet per second)<br />
50,000<br />
45,000<br />
40,000<br />
1882<br />
Ass<strong>in</strong>ibo<strong>in</strong>e River<br />
at Br<strong>and</strong>on<br />
(330-year)<br />
2011<br />
35,000<br />
30,000<br />
1904<br />
1995<br />
25,000<br />
20,000<br />
1923<br />
1955<br />
1976<br />
15,000<br />
10,000<br />
5,000<br />
0
Flow (cubic feet per second)<br />
30,000<br />
25,000<br />
Souris River at Westhope<br />
(213-year)<br />
2011<br />
20,000<br />
1882<br />
15,000<br />
1976<br />
10,000<br />
5,000<br />
0
1961<br />
1962<br />
1963<br />
1964<br />
1965<br />
1966<br />
1967<br />
1968<br />
1969<br />
1970<br />
1971<br />
1972<br />
1973<br />
1974<br />
1975<br />
1976<br />
1977<br />
1978<br />
1979<br />
1980<br />
1981<br />
1982<br />
1983<br />
1984<br />
1985<br />
1986<br />
1987<br />
1988<br />
1989<br />
1990<br />
1991<br />
1992<br />
1993<br />
1994<br />
1995<br />
1996<br />
1997<br />
1998<br />
1999<br />
2000<br />
2001<br />
2002<br />
2003<br />
2004<br />
2005<br />
2006<br />
2007<br />
2008<br />
2009<br />
2011<br />
1961<br />
1963<br />
1965<br />
1967<br />
1969<br />
1971<br />
1973<br />
1975<br />
1977<br />
1979<br />
1981<br />
1983<br />
1985<br />
1987<br />
1989<br />
1991<br />
1993<br />
1995<br />
1997<br />
1999<br />
2001<br />
2003<br />
2005<br />
2007<br />
2009<br />
9,000,000<br />
9,000,000<br />
8,000,000<br />
8,000,000<br />
7,000,000<br />
7,000,000<br />
6,000,000<br />
Total Volume of Water Flow<strong>in</strong>g Down the Ass<strong>in</strong>ibo<strong>in</strong>e River<br />
Total Volume<br />
Between<br />
of<br />
April<br />
Water<br />
<strong>and</strong> July<br />
Flow<strong>in</strong>g<br />
AnnuallyDown the<br />
Ass<strong>in</strong>ibo<strong>in</strong>e River Between April <strong>and</strong> July<br />
2011:<br />
8.3 M ac-ft<br />
ac-ft<br />
6,000,000<br />
5,000,000<br />
5,000,000<br />
4,000,000<br />
4,000,000<br />
3,000,000<br />
3,000,000<br />
2,000,000<br />
2,000,000<br />
1,000,000<br />
1,000,000<br />
1976<br />
1995<br />
-<br />
-
cfs<br />
Upper portion of Souris River Bas<strong>in</strong> Gets Slammed
M<strong>in</strong>ot, North Dakota
Br<strong>and</strong>on
Br<strong>and</strong>on: major dike rais<strong>in</strong>g (earth <strong>and</strong> super s<strong>and</strong> bags)
Souris
Wawanesa<br />
Melita
Portage<br />
Design = 25,000 cfs<br />
2011: 34,000 cfs<br />
Capacity =<br />
18,000 cfs<br />
Br<strong>and</strong>on<br />
W<strong>in</strong>nipeg<br />
2011 peak flow<br />
near 53,000
Ass<strong>in</strong>ibo<strong>in</strong>e River Dikes – Massive Effort to Re<strong>in</strong>force
cfs<br />
Canadian Armed Forces Called <strong>in</strong> to Help
Portage Diversion: re<strong>in</strong>forc<strong>in</strong>g drop structures
Portage Diversion: rais<strong>in</strong>g dikes along channel
Portage<br />
Br<strong>and</strong>on<br />
Design = 25,000 cfs<br />
2011: 34,000 cfs<br />
2011 peak flow<br />
near 53,000<br />
Capacity =<br />
18,000 cfs<br />
Hoop <strong>and</strong> Holler<br />
release: 400 cfs<br />
W<strong>in</strong>nipeg
Controlled release at Ass<strong>in</strong>ibo<strong>in</strong>e River dikes<br />
(at Hoop <strong>and</strong> Holler)
Lake W<strong>in</strong>nipegosis<br />
Waterhen R.<br />
Dauph<strong>in</strong> Lake<br />
Whitemud<br />
Portage Diversion
May 31 st : Lake <strong>Manitoba</strong> at 815.3 ft, <strong>and</strong> major w<strong>in</strong>d storm
cfs<br />
Lake <strong>Manitoba</strong> peaked at 817.15 ft btwn July 12 - 25 (w<strong>in</strong>d<br />
elim<strong>in</strong>ated)
Peak: 817.15 ft.
cfs<br />
May 31 Storm
Waterhen R.<br />
Lake St. Marti<br />
Portage Diversion
Lake St. Mart<strong>in</strong>
Ralls Isl<strong>and</strong> dik<strong>in</strong>g<br />
Saskatchewan R.<br />
Carrot River temp dikes<br />
Souris<br />
Red<br />
W<strong>in</strong>nipeg
At height of flood<strong>in</strong>g, 840 municipal <strong>and</strong><br />
prov<strong>in</strong>cial roads closed or affected<br />
Total evacuees: 7,165<br />
Local states of emergency: 70<br />
Long flood!! Man. Emergency Coord<strong>in</strong>ation<br />
Centre was open 103 days (44 <strong>in</strong> 1997)
<strong>Flood</strong> <strong>Mitigation</strong><br />
• Individual <strong>Flood</strong> Protection – $75M <strong>in</strong> f<strong>in</strong>ancial assistance<br />
• For rais<strong>in</strong>g, dik<strong>in</strong>g, terrac<strong>in</strong>g or mov<strong>in</strong>g<br />
• Homes, <strong>and</strong> farm <strong>and</strong> bus<strong>in</strong>ess build<strong>in</strong>gs: 86%, up to $100,000 project<br />
• Cottage: 86%, up to $40,000 project<br />
• Lake <strong>Manitoba</strong>: first $20,000 is 100% grant<br />
• 1,600 applications to date<br />
• New community flood protection<br />
• 2010: 8 feasibility studies<br />
• 2011: application deadl<strong>in</strong>e is November 30 th<br />
• Construction: $30M <strong>in</strong> 90% grants<br />
• Convert<strong>in</strong>g emergency dikes <strong>in</strong>to permanent dikes<br />
• $20M for 17 projects<br />
• Communities such as Souris, Melita, Wawanesa, Lake <strong>Manitoba</strong> Narrows,<br />
Peltz Drive/St. Peter’s Road
<strong>Flood</strong> <strong>Mitigation</strong><br />
• Community dik<strong>in</strong>g<br />
• Br<strong>and</strong>on: grant for rais<strong>in</strong>g to new design level<br />
• Petersfield: grant for construction/rais<strong>in</strong>g to new design level<br />
• Shellmouth: <strong>in</strong>stall gates on the spillway ($8 M)<br />
• Portage Diversion: assessment <strong>and</strong> upgrad<strong>in</strong>g ($7.4 M)<br />
• Lake St. Mart<strong>in</strong> emergency channel - $100M<br />
• Fairford Control Bypass - $60M
Dauph<strong>in</strong> R.<br />
Lake<br />
W<strong>in</strong>nipeg<br />
<strong>Flood</strong> <strong>Mitigation</strong> Cont<strong>in</strong>ues...<br />
Emergency<br />
outlet channel<br />
Lake<br />
<strong>Manitoba</strong><br />
Fairford R.<br />
Lake<br />
St. Mart<strong>in</strong><br />
Emergency Channel<br />
from Lake St. Mart<strong>in</strong><br />
to Big Buffalo Lake<br />
Fairford Bypass<br />
N
Projected Lake <strong>Manitoba</strong> water levels
Thank You<br />
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