Flood Risk and Vulnerability Analysis Project - Atlantic Climate ...

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Flood # Storm # General Location Start Year Start Month Start Day Start Time End Year End Month End Day End Time Duration (days) Season Region LGP# Community Name Water Bodies Type of Event Rainfall Amount Snowfall amount Sea Height Jam Height Damage Estimate by Community (if known) Damage Estimate by Storm (once per storm) DFAA Damage Report DFAA Damage Report (once per storm) Homes Flooded People Displaced Attachment Number Data Added By Flood Inventory Database 1950 - Present Description Source 148 095 149 095 Avalon Peninsula, Corner Brook, King's Point, Grand Falls, Gander 1977 12 27 1977 12 29 1 Winter Western 1200 Corner Brook Birchy Lake Snowmelt Avalon Peninsula, Corner Brook, King's Point, Grand Falls, Gander 1977 12 27 1977 12 29 1 Winter Western 2585 King's Point Snowmelt MR: Rainfall with snowmelt flooded parts of Bowering Park, Kinsman Park and Squires Avenue. Several roads were damaged and some homes were inundated. Guard rails and hydro poles along the Humber River were left with little support as the flood eroded tons of earth. 100 foot section of the main street was tore up isolating about 40 families. Some flooding to basements and some tenants were forced out of their homes. Many basement apartments were flooded, many people forced to leave their homes MR: Rainfall with snowmelt flooded parts of Bowering Park, Kinsman Park and Squires Avenue. Several roads were damaged and some homes were inundated. Guard rails and hydro poles along the Humber River were left with little support as the flood eroded tons of earth. 100 foot section of the main street was tore up isolating about 40 families. Some flooding to basements and some tenants were forced out of their homes. Many basement apartments were flooded, many people forced to leave their homes MR: Flooding Events in Newfoundland and Labrador - An Historical Perspective. Hydro technical Study of the Deer Lake Area. Hydro technical Study of the Steady Brook Area No AMEC MR: Flooding Events in Newfoundland and Labrador - An Historical Perspective. Hydro technical Study of the Deer Lake Area. Hydro technical Study of the Steady Brook Area No AMEC 150 095 Avalon Peninsula, Corner Brook, King's Point, Grand Falls, Gander 1977 12 27 1977 12 29 1 Winter Western 1960 Grand Falls Snowmelt Some flooding to basements and some tenants were forced out of their homes MR: Flooding Events in Newfoundland and Labrador - An Historical Perspective. Hydro technical Study of the Deer Lake Area. Hydro technical Study of the Steady Brook Area No AMEC 151 095 Avalon Peninsula, Corner Brook, King's Point, Grand Falls, Gander 1977 12 27 1977 12 29 1 Winter Western 1760 Gander Snowmelt MR: Rainfall with snowmelt flooded parts of Bowering Park, Kinsman Park and Squires Avenue. Several roads were damaged and some homes were inundated. Guard rails and hydro poles along the Humber River were left with little support as the flood eroded tons of earth. 100 foot section of the main street was tore up isolating about 40 families. Some flooding to basements and some tenants were forced out of their homes. Many basement apartments were flooded, many people forced to leave their homes MR: Flooding Events in Newfoundland and Labrador - An Historical Perspective. Hydro technical Study of the Deer Lake Area. Hydro technical Study of the Steady Brook Area No AMEC 152 096 Codroy Valley 1978 1 14 1978 1 16 2 Winter Western 1200 Corner Brook Ice Jam $4,000,000 MR: City crews were kept busy repairing several city streets. A 500ft section of the bridge was destroyed isolating 4 communities and 1500 residents, a temp bridge was constructed further downstream 3 months after. Blocked culverts caused minor flooding on the highway Flood Risk Mapping Study of the Codroy Valley Area, Dept of Natural Resources Website 297 AMEC 153 096 Codroy Valley 1978 1 14 1978 1 16 2 Winter Western 1105 Codroy Valley Ice Jam $4,000,000 $4,000,000 MR: City crews were kept busy repairing several city streets. A 500ft section of the bridge was destroyed isolating 4 communities and 1500 residents, a temp bridge was constructed further downstream 3 months after. Blocked culverts caused minor flooding on the highway Flood Risk Mapping Study of the Codroy Valley Area, Dept of Natural Resources Website 297 AMEC 154 096 Codroy Valley 1978 1 14 1978 1 16 2 Winter Western 1825 Gilliams Ice Jam $4,000,000 MR: City crews were kept busy repairing several city streets. A 500ft section of the bridge was destroyed isolating 4 communities and 1500 residents, a temp bridge was constructed further downstream 3 months after. Blocked culverts caused minor flooding on the highway Flood Risk Mapping Study of the Codroy Valley Area, Dept of Natural Resources Website 297 AMEC 155 096 Codroy Valley 1978 1 14 1978 1 16 2 Winter Western 2882 Little Rapids Ice Jam $4,000,000 Rainfall and 156 097 St. John's 1978 1 27 1978 1 27 1 Winter Eastern 4400 St. John's Snowmelt 157 098 158 098 Deer Lake, Steady Brook 1978 5 17 1978 5 20 3 Spring Western 1380 Deer Lake Humber River unknown Deer Lake, Steady Brook 1978 5 17 1978 5 20 3 Spring Western 4935 Steady Brook Humber River Snowmelt MR: City crews were kept busy repairing several city streets. A 500ft section of the bridge was destroyed isolating 4 communities and 1500 residents, a temp bridge was constructed further downstream 3 months after. Blocked culverts caused minor flooding on the highway Rainfall and snowmelt combined to flood many streets, but not significantly along the river The Humber River was overflowing at Steady Brook, Bowaters reported as not having spilled water from the main dam The Humber River was overflowing at Steady Brook, Bowaters reported as not having spilled water from the main dam Flood Risk Mapping Study of the Codroy Valley Area, Dept of Natural Resources Website 297 AMEC Waterford River Area - Hydro technical Study No AMEC Hydro technical Study of the Deer Lake Area No AMEC Hydro technical Study of the Deer Lake Area No AMEC Page 12
Flood # Storm # General Location Start Year Start Month Start Day Start Time End Year End Month End Day End Time Duration (days) Season Region LGP# Community Name Water Bodies Type of Event Rainfall Amount Snowfall amount Sea Height Jam Height Damage Estimate by Community (if known) Damage Estimate by Storm (once per storm) DFAA Damage Report DFAA Damage Report (once per storm) Homes Flooded People Displaced Attachment Number Data Added By Flood Inventory Database 1950 - Present 159 099 St. John's 1978 12 18 1978 12 19 1 Winter Eastern 4400 St. John's Rainfall 160 100 St. John's 1979 1 8 1979 1 9 1 Winter Eastern 4400 St. John's Rainfall 38 Description Considerable flooding in the city with one section of road having to be closed as a result of the heavy rains. Water was said to be up to the bumpers of some vehicles Throughout St. John's, streets, driveways and some basements were flooded because of clogged drains and melting snow Source Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC 161 101 Avalon Peninsula 1979 1 28 1979 1 30 6 Winter Eastern 4400 St. John's Quidi Vidi Lake Rainfall 91 MR: City crews were busy cleaning up flooded sewers and basements, entrance to The Health Sciences Centre was flooded by a nearby pond. Ice backed up water inundating the road between Robinsons and Cartyville with about 12 inches of water. A section of the Cabot Highway near Catalina was under 6 inches of water but remained passable. A stream overflowed its banks and 4 families were forced to leave their homes. Extensive damages to roads in Marystown. Extensive damages to roads, 1 family had to evacuate because of rising water in main area of their home. MR: Flood Risk Mapping Study of Gould's, Petty Harbour and Ferryland. Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC 162 101 Avalon Peninsula 1979 1 28 1979 1 30 6 Winter Eastern Robinson's Robinson's River Rainfall MR: City crews were busy cleaning up flooded sewers and basements, entrance to The Health Sciences Centre was flooded by a nearby pond. Ice backed up water inundating the road between Robinsons and Cartyville with about 12 inches of water. A section of the Cabot Highway near Catalina was under 6 inches of water but remained passable. A stream overflowed its banks and 4 families were forced to leave their homes. Extensive damages to roads in Marystown. Extensive damages to roads, 1 family had to evacuate because of rising water in main area of their home. MR: Flood Risk Mapping Study of Gould's, Petty Harbour and Ferryland. Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC 163 101 Avalon Peninsula 1979 1 28 1979 1 30 6 Winter Eastern Catalina Rainfall 164 101 Avalon Peninsula 1979 1 28 1979 1 30 6 Winter Eastern 1800 Georges Brook Rainfall 4 families 165 101 Avalon Peninsula 1979 1 28 1979 1 30 6 Winter Eastern 3155 Marystown Rainfall MR: City crews were busy cleaning up flooded sewers and basements, entrance to The Health Sciences Centre was flooded by a nearby pond. Ice backed up water inundating the road between Robinsons and Cartyville with about 12 inches of water. A section of the Cabot Highway near Catalina was under 6 inches of water but remained passable. A stream overflowed its banks and 4 families were forced to leave their homes. Extensive damages to roads in Marystown. Extensive damages to roads, 1 family had to evacuate because of rising water in main area of their home. MR: City crews were busy cleaning up flooded sewers and basements, entrance to The Health Sciences Centre was flooded by a nearby pond. Ice backed up water inundating the road between Robinsons and Cartyville with about 12 inches of water. A section of the Cabot Highway near Catalina was under 6 inches of water but remained passable. A stream overflowed its banks and 4 families were forced to leave their homes. Extensive damages to roads in Marystown. Extensive damages to roads, 1 family had to evacuate because of rising water in main area of their home. MR: City crews were busy cleaning up flooded sewers and basements, entrance to The Health Sciences Centre was flooded by a nearby pond. Ice backed up water inundating the road between Robinsons and Cartyville with about 12 inches of water. A section of the Cabot Highway near Catalina was under 6 inches of water but remained passable. A stream overflowed its banks and 4 families were forced to leave their homes. Extensive damages to roads in Marystown. Extensive damages to roads, 1 family had to evacuate because of rising water in main area of their home. MR: Flood Risk Mapping Study of Gould's, Petty Harbour and Ferryland. Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC MR: Flood Risk Mapping Study of Gould's, Petty Harbour and Ferryland. Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC MR: Flood Risk Mapping Study of Gould's, Petty Harbour and Ferryland. Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC Page 13
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Atlantic Climate Adaptation Solutio
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GOVERNMENT OF NEWFOUNDLAND AND LABR
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June 13, 2012 AMEC Project #TA11127
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EXECUTIVE SUMMARY The Government of
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Assessing the Need for New or Updat
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SUMMARY The Government of Newfoundl
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Land Use Change A pre-cursor effort
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fresh water from the Arctic south a
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watershed, which appears to already
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RECOMMENDATION SUMMARY Infrastructu
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7. It is recommended that WRMD deve
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TABLE OF CONTENTS PAGE EXECUTIVE SU
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7.3 References for Assess Need for
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LIST OF TABLES Table 2-1. Flood Eve
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LIST OF FIGURES Figure 2-1. Water R
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1. OVERVIEW In the 1980‟s, under
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Floodway Floodway Fringe Climate Ch
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2. Task B - Updated Flood Events In
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Management Framework for Canada def
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The „Types of Events‟ field is
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Field Damage Estimate by Community
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Arrangements 10 (DFAA) damage estim
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Storm # General Location Year Seaso
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2.3.2 Weather Events - Annual Occur
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Figure 2-6. Storm Occurrence by Yea
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Figure 2-8. Storm Occurrence by Mon
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Type of Event (Grouped) % Occurrenc
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Figure 2-11. Flood Occurrence by Se
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Coastal Flooding Coastal Flooding a
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September is associated, presently,
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3. Task C - Assess Existing Flood R
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Gaudon‟s Brook / Cold Brook Steph
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3.3.2.1 Community Flood Watersheds
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3.3.2.3 Earth Observation for Susta
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Figure 3-3. Graphical model of land
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Original EOSD Classes Shadow Water
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surrounding areas were also evaluat
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Watershed Community Total Area Fore
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correct). Of the 90 accuracy assess
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Figure 3-6. GCM sectors selected to
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Figure 3-7. Percentage change of pr
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The results for temperature are sim
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Area Labrador West Central East Sum
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West sees slightly larger winter in
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These increases, though slight, in
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Classification Maximum Sustained Su
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Since air flow around high pressure
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10 9 8 7 6 Total Number of Tropical
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One of the reasons for this increas
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Figure 3-19. Frequency of Named Sto
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Figure 3-21. Change in Mean Sea Lev
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The net long term sea level effect
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Southern Oscillation (ENSO). The AM
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middle of North America as it would
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e a higher incidence of tropical st
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extreme will be considered. Areas t
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Storms weaken rapidly once they mak
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Figure 3-27. Selected Hurricane and
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o o a Category 2 Hurricane making l
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o Because winter temperatures show
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Worst Case Scenarios This section
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5. A hurricane making landfall on t
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Standards Association 21 recommends
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WRMD has defined a preference for h
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The hydrographic network was used t
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4.1.8 Flood History Identification
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Watershed Slope The slope attribute
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such as number of flood events at a
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Deer Lake Placentia Codroy Steady B
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TA1112733 page 109
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5.2 Methods The methodology used fo
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Reported Event Damages Storm# Locat
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Given the reported damages resultin
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Figure 5-3. Storm tracks for select
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natural constrictions. The number a
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5.5.2 Community Exposure to Physica
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Community Number of Events 2011 Pop
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Community Access Notes Confinement
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Brook and Deer Lake are both locate
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Warning Systems 1. It is recommende
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source of flood vulnerabilities com
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Figure 6-2. Newfoundland Digital El
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Page 167 and 168: Sub-region Precipitation Climate Ch
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Page 175 and 176: 6.3 Mitigation Recommendations Base
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Page 187 and 188: Music and Caya, 2007 Richter and Ba
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Page 191 and 192: Rank Community Name LGP# 82 Massey
Page 193 and 194: Rank Community Name LGP# 252 Little
Page 195 and 196: Rank Community Name LGP# 423 Thornl
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Page 199 and 200: FOX ISLAND RIVER-POINT GALLANTS GEO
Page 201 and 202: GEORGE'S BROOK-MILTON GOOBIES GRAND
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Page 205 and 206: Flood # Storm # General Location St
Page 215: Flood # Storm # General Location St
Page 253 and 254: 11. Appendix D IDF Curves Report TA
Page 255 and 256: Development of Projected Intensity-
Page 263 and 264: Storm Duration Development of Proje
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Storm Duration Development of Proje
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Development of Projected Intensity-
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1979 1983 1987 1991 1995 1999 2003
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Mean Annual Total Precipoitation, m
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Storm Duration Storm Duration Devel
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Storm Duration Storm Duration Storm
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Codroy Valley Watershed Topography
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Parson's Pond Watershed Topography
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Rushoon Watershed: Topography Eleva
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Eastern Watersheds, East Topography
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Eastern 54°0'0"Watersheds, West To
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Central Watersheds, 57°0'0"W East
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Central 58°0'0"W and Western Water
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Badger and Rushy 58°0'0"W Pond Wat
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Cox's Cove Watershed: Land Cover 58
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Ferryland Watershed Land Cover 60°
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49°0'0"N Glenwood-Appleton 56°0'0
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Parson's Pond Watershed: Land Cover
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Rushy Pond Watershed: 57°0'0"WLand
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Stephenville Crossing Watershed: La
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Whitbourne and Brigus Watersheds: L
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Eastern Watersheds 2: Land Cover Ha
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Eastern Watersheds, East: Land Cove
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