Flood and drought mitigation - Matt Machielse
-
Upload
youralberta -
Category
Government & Nonprofit
-
view
1.345 -
download
4
description
Transcript of Flood and drought mitigation - Matt Machielse
![Page 1: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/1.jpg)
Flood and Drought Mitigation
Alberta's Watershed Management Symposium: Flood and Drought Mitigation
April 29, 2014
![Page 2: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/2.jpg)
2
![Page 3: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/3.jpg)
3
Calgary Inglewood
![Page 4: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/4.jpg)
4
City of CalgaryMemorial -Sunnyside
![Page 5: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/5.jpg)
5
CanmoreCougar Creek
![Page 6: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/6.jpg)
Estimated 2013 Flood Flows
River Location2013 Flow
(cubic meters/second)
Flood Size
Bow Calgary (upstream of Elbow) 1780 1%
Bow Bassano Dam 4200 0.5%
Elbow Upstream of Glenmore Reservoir 1220 0.5%
Highwood Upstream of Town of High River 1820 0.5%
Sheep Upstream of Turner Valley 720 1%
Red Deer Upstream of Glennifer Reservoir 1800 2%
6
![Page 7: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/7.jpg)
Improving Alberta’s Flood and Drought Resiliency
7
![Page 8: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/8.jpg)
Flood Mitigation Framework: Purpose and Principles
Flooding cannot be prevented, but we can be better prepared
Preparedness, protection and resilience– Reduce risk – Define the “1:100” standard as a 1% chance in any given year
Assess, select, coordinate and implement mitigation measures and policies
Evaluate based on:– Understanding causes, risks and impacts; and– Social, environmental and economic cost/benefit
8
![Page 9: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/9.jpg)
Watershed ManagementSystems Approach
Each river basin is a system
Focus on river basins where flooding and drought risks are highest
Implement best combination of upstream, local, individual and policy-based mitigation measures to protect against 1:100 flooding events.
Enhance the ability to protect against water shortages as well.
9
![Page 10: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/10.jpg)
1) Overall Watershed Management System-wide view
2) Flood Modelling, Prediction, and Warning SystemsTools to prepare Albertans for future floods
3) Flood Risk Management PoliciesRules that reduce the risk to people, infrastructure, the environment and economy
4) Water Management and Mitigation InfrastructureLayers of flood protection at regional levels
10
Seven Key Elements of Mitigation
![Page 11: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/11.jpg)
5) Erosion ControlResiliency of our river systems to handle high water flows
6) Local Municipal Mitigation InitiativesLayers of flood protection at the local level
7) Individual Mitigation Measures for HomesFlood protection for homes most at-risk
Seven Key Elements of Mitigation
11
![Page 12: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/12.jpg)
1) Overall Watershed Management
Actions to date:•Southern Regional Storm Water Management Plan implemented•Wallaceville (High River) relocation program
British Columbia
Sas
katc
hew
an
Montana
SOUTH
RIVER SUB-BASINSASKATCHEWAN
RED DEER RIVER BASIN
BOW RIVER BASIN
OLDMAN RIVERBASIN
AlbertaWAT
ERTO
N R
.BE
LLY
R.
REDDEER
ROSEBUD
HIGHWOOD R.ELB
OW
RIVER
RIVER
RIVER
REDDEER R. B
ER
RY
CR
EEK
BOW R.
SOUTH
SASK
ATCH
EWAN
R.
LITTLEBOW R.
MILK R.
CAST
LE R
.
OLDMAN R.
WILLOW
CROWSNEST R.
CREEK
MA
RY R
.
OLDMAN R.
ST.
South Saskatchewan River Basin12
Seven Key Elements of Mitigation
Bow River Sub-Basin
![Page 13: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/13.jpg)
2) Flood Modelling, Prediction, and Warning Systems
Work completed:•$8.7 Million to update flood hazard mapping
•Eight mapping studies complete:
Work ongoing:•Advisory and river basin data updates
13
• Banff• Penhold• Rycroft• Thorsby
• Two Hills• Irvine• Walsh• Pine Creek
Seven Key Elements of Mitigation
![Page 14: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/14.jpg)
3) Flood Risk Management Policies
Floodway development restrictions:
•Bill 27 received Royal Assent•Stakeholder consultation on regulations are underway
Floodway relocation program
14
Seven Key Elements of Mitigation
![Page 15: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/15.jpg)
4) Water Management and Mitigation Infrastructure
Assessment of:Existing water management infrastructure
Proposed dams and structures for:Bow and Ghost RiversElbow RiverSheep RiverHighwood River
15
Seven Key Elements of Mitigation
![Page 16: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/16.jpg)
5) Erosion Control
Flood Recovery and Erosion Control (FREC)
•$216 Million committed•Program ended on March 31, 2014
16
Seven Key Elements of Mitigation
![Page 17: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/17.jpg)
6) Local Mitigation Initiatives – by Community
New Program slated for 2014:
Resilience and Mitigation Program (RAMP) $1.6 Billion in requests
17
Seven Key Elements of Mitigation
![Page 18: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/18.jpg)
7) Individual Mitigation Measures for Homes
Actions to date:
Disaster Recovery Program
Amendments to Emergency Management Act
Minimum standards for homes (STANDATA)
Seven Key Elements of Mitigation
![Page 19: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/19.jpg)
Our Mitigation Focus
19
![Page 20: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/20.jpg)
Mitigation Focus
• Non-Structural Mitigation - managing healthy river systems and minimizing man made impacts– For flood control and drought management– Allows rivers to sustain themselves naturally
• Wetlands for water retention and habitat
• Healthy riparian areas for erosion control and protection of aquatic ecosystems
• Structural Mitigation - large-scale engineering projects
![Page 21: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/21.jpg)
Non-Structural Mitigation Pilots
Wetland Restoration in key areas
Enhancing riparian health on impacted rivers
![Page 22: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/22.jpg)
Structural: On-Stream and Off-Stream Detention or Storage Dams and Reservoirs
Several sites examined
Captures flood water using a dam or a weir and stores it in a reservoir
On-stream storage: the reservoir is part of the river
Off-stream storage: the reservoir is not part of the river
![Page 23: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/23.jpg)
Structural: By-Pass or Diversion
• Bypass the flood risk area by building a tunnel or canal
• The water can be moved:– Around the risk area and back into the same river; or– Diverted from the risk area and into another river
Example: Winnipeg By-Pass Floodway
![Page 24: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/24.jpg)
Proposed Actions
24
![Page 25: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/25.jpg)
Eleven (11) water management infrastructure sites throughout the province require upgrades to ensure operational effectiveness during future floods
Upgrade Existing Water Control Infrastructure
![Page 26: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/26.jpg)
Examples - Water Control Infrastructure
Travers Dam and Reservoir
• Provides water to communities, First Nations, industry, irrigation
• Requires emergency spillway
Bullhorn Wasteway
• Provides emergency spill capacity for flood water
• Structure requires upgrading
![Page 27: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/27.jpg)
Example – Water Control Infrastructure
• This structure is 100 years old.
• Provides water to Brooks, Lakeside Packers, irrigators, habitat.
• Requires emergency spillway structure.
Bassano Dam – normal year
Bassano Dam – June, 2013
![Page 28: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/28.jpg)
Mitigation for Communities
The current cost estimate for flood-affected communities exceeds $1.6 Billion.
Canmore - 2013 Turner Valley - 2013
Ft. McMurray - 2013
![Page 29: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/29.jpg)
Bow River Sub-Basin(Bow, Ghost, Elbow, Sheep and Highwood)
Ghost River
Sheep River
Highwood River
Elbow River
British Columbia
Sas
katc
hew
an
Montana
SOUTH
RIVER SUB-BASINSASKATCHEWAN
RED DEER RIVER BASIN
BOW RIVER BASIN
OLDMAN RIVERBASIN
AlbertaWAT
ERTO
N R
.BE
LLY
R.
REDDEER
ROSEBUD
HIGHWOOD R.ELB
OW
RIVER
RIVER
RIVER
REDDEER R. B
ER
RY
CR
EEK
BOW R.
SOUTH
SASK
ATCH
EWAN
R.
LITTLEBOW R.
MILK R.
CAST
LE R
.
OLDMAN R.
WILLOW
CROWSNEST R.CREEK
MA
RY R
.
OLDMAN R.
ST.
Bow River Basin
South Saskatchewan River Basin
![Page 30: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/30.jpg)
Bow and Ghost Rivers: structural mitigation options
Includes:•Two proposed dry dams; and
•Community mitigation
Future Focus:•Community mitigation
![Page 31: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/31.jpg)
Initiatives going forward
River Project Type Recommendation
Bow
BG1 Dam Not Recommended
BW1 Dam Not Recommended
BR1 Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
![Page 32: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/32.jpg)
Elbow River Watershed
Bow River Basin
![Page 33: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/33.jpg)
Elbow River - structural mitigation options
Included:•4 possible dry dams•1 off-stream storage site •Calgary tunnel diversion
Dry Dam SiteOff-Stream Storage SiteCalgary Tunnel Site
![Page 34: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/34.jpg)
Elbow River - structural mitigation options
Future Focus:•1 proposed dry dam;
•1 off-stream storage site; and
•Calgary tunnel diversion. – The City of Calgary is conducting a feasibility study on the tunnel.
Off-Stream Storage Site Schematic (near Springbank Road)
McLean Creek On-Stream Dam Site Schematic
![Page 35: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/35.jpg)
Proposed Structural Mitigation Options
McLean Creek Site
Springbank Road Site
Calgary Tunnel
![Page 36: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/36.jpg)
Off-Stream vs On-Stream Storage
• Drought Protection: live storage can be added to either option
• On-stream (MC1): $189 Million– Protects Bragg Creek and Calgary
– Store 58,000 dam3 of water
• Off-stream (SR 1): $193 Million– Protects Calgary
– Store 57,000 dam3 of water
– Less physical disturbance to the stream
– Less construction window restrictions
– Fish passage on the Elbow River can be implemented
![Page 37: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/37.jpg)
Springbank (SR1) fly-over
37
![Page 38: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/38.jpg)
Effects of Springbank (SR1) Off-stream storage
2013 event2013 event
2013 eventwith SR1
![Page 39: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/39.jpg)
Effects of McLean Creek (MC1) On-stream storage
2013 event2013 event
2013 eventwith MC1
![Page 40: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/40.jpg)
Initiatives going forward
River Project Type Recommendation
Elbow
FC1 Dam Not Recommended
EQ1 Dam Not Viable
EC1 Dam Not Viable
MC1 Dam Decision required after Calgary tunnel study
SR1 Off-Stream Approved for engineering design
Priddis By-Pass Not Recommended
Calgary Tunnel Study Further
Community Mitigation
Berms/Dykes
Approved to proceed
![Page 41: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/41.jpg)
Sheep River Watershed
41
Bow River Basin
![Page 42: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/42.jpg)
Sheep River - structural mitigation options Includes: •1 proposed dry dam (S2)•Community mitigation measures
Future Focus: •Community mitigation measures
S2 Dam
Sheep River Basin Town of Turner Valley
![Page 43: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/43.jpg)
Initiatives going forward
River Project Type Recommendation
SheepS2 Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
![Page 44: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/44.jpg)
Highwood River Watershed
Bow River Basin
![Page 45: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/45.jpg)
High River- structural mitigation options
Includes:
•2 proposed dry dams
•3 by-pass (north and south of High River) options
•Town of High River flood protection (currently being constructed)
![Page 46: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/46.jpg)
High River By-Pass Channel Options
Tong
ue C
reek
Tongue Creek
High River
Highwood River
Tongue Creek By-Pass
Northern By-Pass
Southern By-Pass
![Page 47: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/47.jpg)
Berms and Bank Protection Projects
Town of High River
![Page 48: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/48.jpg)
Ongoing Berm Construction in High River
![Page 49: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/49.jpg)
By-Pass Channels
Being considered to further protect the Town of High River
Future focus:– North by-pass option– South by-pass option– Both north & south
![Page 50: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/50.jpg)
Highwood Diversion options
50
![Page 51: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/51.jpg)
Highwood Diversion options
51
![Page 52: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/52.jpg)
Proposed High River Northern By-Pass Option
![Page 53: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/53.jpg)
Proposed High River Southern By-Pass Option
Little Bow Dam & Reservoir
Little Bow Diversion
Includes: By-pass channel to Little
Bow River; and Dam and storage reservoir
to retain flood water.
![Page 54: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/54.jpg)
Initiatives going forward
54
River Project Type Recommendation
Highwood
H5(2) Dam Not Recommended
H2 Dam Not Recommended
High River By-Pass By-Pass Channel Study Further
Community Mitigation Berms/Dykes Approved to proceed
![Page 55: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/55.jpg)
AthabascaBasin
55
Whitecourt
Slave Lake
Ft. McMurray
![Page 56: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/56.jpg)
Ft. McMurray
56
Historic flooding - 1977
![Page 57: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/57.jpg)
Fort McMurray – Dyking Flood Mitigation Options
57
![Page 58: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/58.jpg)
Initiatives going forward
58
River Project Type Recommendation
Athabasca
Ice Control Structure Not Recommended
Crooked Rapids Dam Not Recommended
Clearwater Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
![Page 59: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/59.jpg)
Red Deer River Sub-Basin
59
Red Deer
Drumheller
Sundre
![Page 60: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/60.jpg)
Affected Municipalities
• Municipalities– Sundre– Mountainview County– Red Deer County– City of Red Deer– Drumheller– Regional Water Systems
• Potential Actions– Dyking– Regulating flows
60
![Page 61: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/61.jpg)
Potential Water Detention Sites
• Provides storage of flood water• Supplies water to Glennifer Lake during water
shortages
61
![Page 62: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/62.jpg)
Initiatives going forward
River Project Type Recommendation
Red Deer
S1(c) Dam Not Recommended
S4 Dam Not Recommended
S5 Dam Not Recommended
S6 Dam Not Recommended
S9 Dam Not Recommended
S13(b) Dam Not Recommended
S14 Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
![Page 63: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/63.jpg)
South Saskatchewan RiverSub-Basin
• Main flooding occurred in City of Medicine Hat
• Medicine Hat has developed a flood protection plan
• Southern Regional Stormwater Management Plan underway
Medicine Hat
CFB Suffield
![Page 64: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/64.jpg)
Medicine HatFlood Protection Sites
![Page 65: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/65.jpg)
Moving forward
![Page 66: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/66.jpg)
Engineered Projects Considered
River Project Type Recommendation
Bow
BG1 Dam Not Recommended
BW1 Dam Not Recommended
BR1 Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
Elbow
FC1 Dam Not Recommended
EQ1 Dam Not Viable
EC1 Dam Not Viable
MC1 Dam Decision required after Calgary tunnel study
SR1 Off-Stream Approved for engineering design
Priddis By-Pass Not Recommended
Calgary Tunnel Study Further
Community Mitigation Berms/Dykes Approved to proceed
SheepS2 Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
![Page 67: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/67.jpg)
Engineered Projects Considered
River Project Type Recommendation
Highwood
H5(2) Dam Not Recommended
H2 Dam Not Recommended
High River By-Pass By-Pass Channel Study Further
Community Mitigation Berms/Dykes Approved to proceed
Red Deer
S1(c) Dam Not Recommended
S4 Dam Not Recommended
S5 Dam Not Recommended
S6 Dam Not Recommended
S9 Dam Not Recommended
S13(b) Dam Not Recommended
S14 Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
Athabasca
Ice Control Structure Not Recommended
Crooked Rapids Dam Not Recommended
Clearwater Dam Not Recommended
Community Mitigation Berms/Dykes Approved to proceed
![Page 68: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/68.jpg)
Mitigation Spending(in $ millions)
Decision/Description Total 2013 /14
2014 /15
2015 /16
2016 /17
Community mitigation Flood Erosion Control Program Resilience and Mitigation Program High River
21632587
191-
87
25110
-
-110
-
-105
-
Non-structural 21 - 7 7 7
Upgrades to infrastructure 104 - 8 38 58
Elbow/ Highwood Projects 150 - 75 75 -
Total 903 278 225 230 170
$625 million in Budget 2014/2015 to 2016/2017
![Page 69: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/69.jpg)
Next Steps
• Ongoing studies– City of Calgary Tunnel Proposal (early June)– More detailed engineering assessment of select
structural mitigation options (SR1, MC1, By-pass), RFP’s in June
– Implementation of non-structural (watershed management) mitigation options over 3 years
• Implementation of Resilience & Mitigation Program (RAMP) – 3 year funding
![Page 70: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/70.jpg)
Next Steps
• Upgrades of existing water infrastructure– 3 year funding
• Ongoing stakeholder engagement
• Formal regulatory approval processes– beginning this fall
![Page 71: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/71.jpg)
Regulatory Process
• Environmental Assessment based on scale and complexity of proposed project
• Provincial approvals under the Water Act, Historical Resources Act, Natural Resources Conservation Board Act and Public Lands Act
• Federal processes under the Fisheries Act and the Canadian Environmental Assessment Act would likely occur concurrently
![Page 72: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/72.jpg)
Municipal Engagement
• Discussions with community leadership– Meetings with municipal officials within flood-affected
watersheds will provide community leaders with more detail surrounding upcoming flood mitigation projects
– Meetings will take place in each watershed during May/June
![Page 73: Flood and drought mitigation - Matt Machielse](https://reader038.fdocuments.net/reader038/viewer/2022102618/554ad82cb4c9056a798b48b9/html5/thumbnails/73.jpg)
Questions?