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

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5.5 Results 5.5.1 Identified key communities Table 5-5 presents a list of identified key communities. These are the communities identified from the flood events inventory as having five or more recorded flood events, estimates of damage cost for a singular community, and/or reports of isolation in the Flood Events Inventory. The Reports of Isolated Residents field in Table 5-5 notes the presence or absence of reports of isolated residents in the available sources of information (e.g., the flood events inventory, flood risk maps) for each community. Community Number of Damage Reports of Isolated Events Estimate Residents Badger 4 Yes No Belleoram 3 Yes No Carbonear 5 No No Codroy Valley 6 No Yes Cold Brook 3 No Yes Corner Brook 42 No Yes Daniels Harbour 1 Yes No Deer Lake 16 No No Ferryland 7 No No Gambo 5 No No Gander 5 No No Grand Bank 5 No No Grand Falls 5 No No Goulds 6 No No Hermitage- Sandyville 2 Yes No King's Point 5 No Yes Maddox Cove 5 No No Marystown 6 No Yes Middle Arm 5 No No Mount Pearl 5 No No New-wes-valley 1 No Yes Placentia 12 Yes No Port Blandford 1 No Yes Rocky Harbour 3 Yes No Rushoon 5 No No St. John's 79 Yes Yes Steady Brook 5 No No Stephenville 34 No No Table 5-5. Identified key communities. Mooring Cove is included with Marystown, and Noel’s Pond is included with Stephenville. TA1112733 page 120
5.5.2 Community Exposure to Physical Hazard Table 5-6 presents the physical hazard ranking for each identified community. Community Flood Risk Map Causes Number of Events Rating Badger Yes Ice jams, snowmelt 4 2 Belleoram No Rainfall, storm surge 3 1 Carbonear Yes Ice jams, costal, rainfall, snowmelt 5 2 Codroy Valley Yes Rainfall, snowmelt, Ice jams 6 2 Cold Brook Yes Rainfall, snowmelt, ice jams 3 0 Corner Brook No Rainfall, snowmelt, ice jams 42 3 Daniels Harbour No Coastal 1 0 Deer Lake Yes Rainfall, snowmelt, ice jams 16 3 Ferryland Yes Coastal 7 1 Gambo No Rainfall, snowmelt 5 0 Gander No Rainfall 5 1 Grand Bank No Rainfall, Ice jams, coastal 5 1 Grand Falls No Rainfall, snowmelt 5 1 Goulds Yes Rainfall, snowmelt, ice jams 6 2 Hermitage- Sandyville No Rainfall, dam break 2 0 King's Point No Rainfall, snowmelt 5 1 Maddox Cove Yes Rainfall, snowmelt, coastal 5 1 Marystown No Rainfall, coastal, ice jams 5 1 Middle Arm No Rainfall, coastal 5 1 Mount Pearl No Rainfall, snowmelt 5 1 New-wes-valley No Coastal 1 0 Placentia Yes Coastal 12 1 Port Blandford No Coastal 1 0 Rocky Harbour No Rainfall, coastal 3 0 Rushoon Yes Ice Jam, coastal 5 1 Ice jams, costal, rainfall, snowmelt 79 3 St. John's No Steady Brook Yes Rainfall, snowmelt, Ice jams 5 1 Stephenville Yes Rainfall, snowmelt, Ice jams 34 3 Table 5-6. Physical hazard ranking results. Watersheds were numerically classified on a 0 – 3 scale, based on the severity of their exposure to various flood hazards. For example, a coastal watershed that has experienced TA1112733 page 121
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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
Page 99 and 100: Figure 3-19. Frequency of Named Sto
Page 101 and 102: Figure 3-21. Change in Mean Sea Lev
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Page 121 and 122: Worst Case Scenarios This section
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Page 127 and 128: WRMD has defined a preference for h
Page 129 and 130: The hydrographic network was used t
Page 131 and 132: 4.1.8 Flood History Identification
Page 133 and 134: Watershed Slope The slope attribute
Page 135 and 136: such as number of flood events at a
Page 137 and 138: Deer Lake Placentia Codroy Steady B
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Page 141 and 142: 5.2 Methods The methodology used fo
Page 143 and 144: Reported Event Damages Storm# Locat
Page 145 and 146: Given the reported damages resultin
Page 147 and 148: Figure 5-3. Storm tracks for select
Page 149: natural constrictions. The number a
Page 153 and 154: Community Number of Events 2011 Pop
Page 155 and 156: Community Access Notes Confinement
Page 157 and 158: Brook and Deer Lake are both locate
Page 159 and 160: Warning Systems 1. It is recommende
Page 161 and 162: source of flood vulnerabilities com
Page 163 and 164: Figure 6-2. Newfoundland Digital El
Page 165 and 166: communities ( Gillams, Hughes Brook
Page 167 and 168: Sub-region Precipitation Climate Ch
Page 169 and 170: Analysis of the socio-economic data
Page 171 and 172: East-2 Coastal communities line nea
Page 173 and 174: 6.2.2 Potential Strategies Table 6-
Page 175 and 176: 6.3 Mitigation Recommendations Base
Page 177 and 178: Table 6-5 presents the range of ave
Page 179 and 180: West-3, West-4, and Central-3 These
Page 181 and 182: Mitigation Strategy Cost to Impleme
Page 183 and 184: Sub-region Watershed Characteristic
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Page 187 and 188: Music and Caya, 2007 Richter and Ba
Page 189 and 190: http://www.arcgis.com/home/item.htm
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
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GEORGE'S BROOK-MILTON GOOBIES GRAND
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TA1112733 page 173
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Flood # Storm # General Location St
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11. Appendix D IDF Curves Report TA
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Development of Projected Intensity-
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Storm Duration Development of Proje
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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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