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 55 041 56 041 La Manche, South and East Coast 1966 12 20 1966 12 22 2 Winter Central Bay d'Espoir Rainfall 102.8 La Manche, South and East Coast 1966 12 20 1966 12 22 2 Winter Eastern 5145 Trepassey Rainfall 102.8 57 042 Corner Brook 1968 11 26 1968 11 26 1 Fall Western 1200 Corner Brook Rainfall A section of the railway was washed away. Rainfall and 58 043 Codroy Valley 1969 3 19 1969 3 21 2 Spring Western 1105 Codroy Valley Snowmelt 59 044 60 044 61 044 Stephenville, Steady Brook, Deer Lake 1969 5 19 1969 5 21 2 Summer Western 4945 Stephenville Stephenville, Steady Brook, Deer Lake 1969 5 19 1969 5 21 2 Summer Western 4935 Steady Brook Warm Creek / Blanche Brook Rainfall Stephenville, Steady Brook, Deer Lake 1969 5 19 1969 5 21 2 Summer Western 1380 Deer Lake Humber River Rainfall 62 045 Deer Lake 1969 5 21 1969 5 30 9 Spring Western 1380 Deer Lake Humber River 63 046 Avalon Peninsula 1970 2 27 1970 3 2 4 Winter Eastern 4400 St. John's Warm Creek / Blanche Brook Rainfall $40,000 $40,000 Rainfall and Snowmelt Description Source MR: Many roads were flooded and shoulders washed out, numerous basements were flooded, a bridge between Rennie's River and the Stadium was completely submerged. The reservoir overflowed spilling water down to the powerhouse, inundating the lower levels of the powerhouse. A bridge at Northeast Trepassey was completely submerged Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC MR: Many roads were flooded and shoulders washed out, numerous basements were flooded, a bridge between Rennie's River and the Stadium was completely submerged. The reservoir overflowed spilling water down to the powerhouse, inundating the lower levels of the Flooding Events in powerhouse. A bridge at Northeast Trepassey Newfoundland and Labrador was completely submerged - An Historical Perspective No AMEC Dept Natural Resources Website 42 AMEC Flood Risk Mapping Study Railway line damaged at Codroy Pond. of the Codroy Valley Area No AMEC MR: Several basements and some outside property was flooded. Several homes were flooded, two were considered to be a total write off. Three houses were flooded, a section of the highway was flooded MR: Several basements and some outside property was flooded. Several homes were flooded, two were considered to be a total write off. Three houses were flooded, a section of the highway was flooded MR: Several basements and some outside property was flooded. Several homes were flooded, two were considered to be a total write off. Three houses were flooded, a section of the highway was flooded Several homes along Humber River from Corner Brook to Nicholsville were inundated. Highways were blocked for a period of time Waterford River / Quidi Vidi River Rainfall 114 4 day rainfall resulted in general flooding MR: Environment Canada Report January 8th, 1976. Hydro technical Study of Steady Brook Area No AMEC MR: Environment Canada Report January 8th, 1976. Hydro technical Study of Steady Brook Area No AMEC MR: Environment Canada Report January 8th, 1976. Hydro technical Study of Steady Brook Area No AMEC Hydro technical Study of the Deer Lake Area No AMEC Flood Risk Mapping Study of Gould's, Petty Harbour and Ferryland No AMEC 64 047 West Coast 1970 5 22 1970 6 3 10 Spring Western 1200 Corner Brook Majestic Brook Rainfall 48.8 $17,500 $17,500 65 047 Burin Peninsula 1970 8 11 1970 8 12 2 Summer Eastern 725 Burin Peninsula Rainfall 257.6 66 048 Corner Brook 1970 11 24 1970 11 26 2 Fall Western 1200 Corner Brook Rainfall 100.9 67 049 Avalon Peninsula 1971 1 31 1971 2 1 1 Winter Eastern 4400 St. John's Waterford River Rainfall and Snowmelt 48.8 68 050 Codroy Valley 1971 2 14 1971 2 15 1 Winter Western 1105 Codroy Valley Ice Jam Quidi Vidi Rainfall and 69 051 St. John's 1971 11 14 1971 11 15 2 Fall Eastern 4400 St. John's River Snowmelt 70 052 Grand Falls Area 1971 12 30 1972 1 4 6 Winter Central 1960 Grand Falls Rushy Pond unknown Rainfall and 71 053 Corner Brook 1972 N/A N/A 1972 N/A N/A N/A Spring Western 1200 Corner Brook Snowmelt MR: Heavy rainfall of 257.6 mm caused streams to flood their banks resulting in extensive damage to roads, culverts, and bridges. Several streets including Watson's Road was inundated by heavy Flooding Events in runoff causing erosion, culverts were blocked with debris and one river overflowed its bank Newfoundland and Labrador - An Historical Perspective No AMEC MR: Heavy rainfall of 257.6 mm caused streams to flood their banks resulting in extensive damage to roads, culverts, and bridges. Several streets including Watson's Road was inundated by heavy runoff causing erosion, culverts were blocked with debris and one river overflowed its bank Department of Natural Resources Website 47 AMEC A major washout was reported in the Elizabeth Street area, as well as many others throughout the city, many basements were flooded resulting in damages. Melting snow and rainfall caused flooding at many locations (St. Brides College) Some roads washed out in Corner Brook or badly rutted, a bridge washed out in Port au Basque, some flooding on the TCH Local flooding reported in St. John's and within Bowering Park Ice cover and high water flows raised the level of Rushy Pond to road level A three year old drowned when swept away by a swollen stream behind her house. Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC Flood Risk Mapping Study of Gould's, Petty Harbour and Ferryland No AMEC Flood Risk Mapping Study of the Codroy Valley Area No AMEC Waterford River Area - Hydro technical Study No AMEC Hydro technical Study of the Badger and Rushy Pond Area, Dept of Natural Resources Website 290 AMEC Department of Natural Resources Website 53 AMEC 72 054 Corner Brook 1972 3 9 1972 3 10 1 Winter Western 1200 Corner Brook Rainfall 20.3 $20,000 $20,000 Damage to streets and city property Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC Page 4
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 73 055 Stephenville, Corner Brook 1972 5 15 1972 5 17 2 Spring Western 4945 Stephenville Warm Creek Rainfall $1,500 $1,500 MR: Corner Brook NL, May 15, 1972. Spring runoff accompanied by rainfall caused flooding affecting communities on the Port au Prince Peninsula and area; damage to CNR; in Corner Brook, a 3-year old child drowned when swept away by a swollen brook behind her home. The causeway washed out at Mississippi Drive, water washed out sections of the roadway. MR: Canadian Disaster Database. Environment Canada Report January 8th, 1976 No AMEC 74 055 Stephenville, Corner Brook 1972 5 15 1972 5 17 2 Spring Western 1200 Corner Brook Rainfall 75 056 St. John's 1972 11 10 1972 11 12 2 Fall Eastern 4400 St. John's 76 057 77 057 North Harbour, Corner Brook 1972 11 27 1972 11 28 1 Fall Eastern 3535 North Harbour North Harbour, Corner Brook 1972 11 27 1972 11 28 1 Fall Eastern 1200 Corner Brook Bell's Brook Waterford River Rainfall 116 Rainfall and Snowmelt 40.6 Rainfall and Snowmelt 40.6 $30,000 $30,000 MR: Corner Brook NL, May 15, 1972. Spring runoff accompanied by rainfall caused flooding affecting communities on the Port au Prince Peninsula and area; damage to CNR; in Corner Brook, a 3-year old child drowned when swept away by a swollen brook behind her home. The causeway washed out at Mississippi Drive, water washed out sections of the roadway. Rainfall resulted in local flooding and road washouts in St. John's near the Waterford River mouth MR: A newly constructed culvert and about 200ft of the Branch road (St. Mary's Bay). Drainage systems were overtaxed causing overflow in some areas, many basements throughout the city were flooded. MR: A newly constructed culvert and about 200ft of the Branch road (St. Mary's Bay). Drainage systems were overtaxed causing overflow in some areas, many basements throughout the city were flooded. MR: Canadian Disaster Database. Environment Canada Report January 8th, 1976 No AMEC Waterford River Area - Hydro technical Study No AMEC Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC 78 058 Corner Brook 1972 12 7 1972 12 8 1 Winter Western 1200 Corner Brook Bell's Brook Rainfall 79 059 Codroy Valley 1972 12 9 1972 12 10 1 Fall Western 1105 Codroy Valley Codroy River Flood 80 060 St. John's 1973 1 20 1973 1 21 1 Winter Eastern 4400 St. John's Rainfall 81 061 St. John's 1973 2 22 1973 2 23 1 Winter Eastern 4400 St. John's Rainfall 68.3 Bell's Brook overflowed inundating the road and flooding property. Heavy rain caused a flash flood and inundated the St. Croix farm near Cold Brook Minor damages to some unpaved roads in the city Flooding near the river mouth (Southside Road, Water Street West) Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC Flood Risk Mapping Study of the Codroy Valley Area No AMEC Flooding Events in Newfoundland and Labrador - An Historical Perspective No AMEC Waterford River Area - Hydro technical Study No AMEC 82 062 Rushoon, Stephenville, Burin Peninsula 1973 2 2 1973 2 5 4 Winter Eastern 4295 Rushoon Rushoon Brook Ice Jam MR: The Burin Peninsula highway was closed due to washouts at Grand Le Pierre, Southwest Arm, Hodges Cove and close to Swift Current. Several streets were blocked with Ice and water. Some areas escaped flooding thanks to the dykes that were constructed after the last flood. Rain and warm weather and an ice jam caused Rushoon River to flood, several damaged houses were reported. MR: Flooding Events in Newfoundland and Labrador - An Historical Perspective. Hydro technical Study of the Stephenville Area. Rushoon Flood Study Report, Dept of Natural Resources Website 302 AMEC 83 062 Rushoon, Stephenville, Burin Peninsula 1973 2 2 1973 2 3 1 Winter Western 4945 Stephenville Blanche Brook Ice Jam MR: The Burin Peninsula highway was closed due to washouts at Grand Le Pierre, Southwest Arm, Hodges Cove and close to Swift Current. Several streets were blocked with Ice and water. Some areas escaped flooding thanks to the dykes that were constructed after the last flood. Rain and warm weather and an ice jam caused Rushoon River to flood, several damaged houses were reported. MR: Flooding Events in Newfoundland and Labrador - An Historical Perspective. Hydro technical Study of the Stephenville Area. Rushoon Flood Study Report, Dept of Natural Resources Website 302 AMEC 84 062 Rushoon, Stephenville, Burin Peninsula 1973 2 2 1973 2 5 4 Winter Eastern 725 Burin Peninsula Rushoon Brook 85 063 St. John's 1973 6 17 1973 6 17 1 Summer Eastern 4400 St. John's Rainfall 50 86 064 Corner Brook 1973 6 23 1973 6 24 1 Summer Eastern 1200 Corner Brook Rainfall $30,000 $30,000 Ice Jam MR: The Burin Peninsula highway was closed due to washouts at Grand Le Pierre, Southwest Arm, Hodges Cove and close to Swift Current. Several streets were blocked with Ice and water. Some areas escaped flooding thanks to the dykes that were constructed after the last flood. Rain and warm weather and an ice jam caused MR: Flooding Events in Newfoundland and Labrador - An Historical Perspective. Hydro technical Study of the Stephenville Area. Rushoon Rushoon River to flood, several damaged houses Flood Study Report, Dept of were reported. Natural Resources Website 302 AMEC Rainfall caused isolated flooding and landslides Waterford River Area - down Southside Hills at Kilbride Hydro technical Study No AMEC Rainfall caused considerable damages to some homes and property Hydro technical Study of the Steady Brook Area No AMEC Page 5
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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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Page 163 and 164: Figure 6-2. Newfoundland Digital El
Page 165 and 166: communities ( Gillams, Hughes Brook
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Page 169 and 170: Analysis of the socio-economic data
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Page 183 and 184: Sub-region Watershed Characteristic
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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 207: Flood # Storm # General Location St
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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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