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

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Design and Location of Facilities (NS3). The minimum design standards and location requirements of future permanent building structures within flood prone areas should be established, as well as the minimum design standards for structural stormwater runoff management and flood protection practices. Having these minimum standards and requirements can reduce flooding impacts, as well as help mitigate sources of flooding. Building Codes (NS4). Specific building codes should be established for permanent structures to be built in areas permitted by flood plain zoning and regulation, as well as flood prone areas. These codes will establish minimum requirements to minimize life and property losses due to flooding. Building codes also take into account historical experience. However as climate change occurs, they may need additional analysis to assess their current and future effectiveness. Information and Education (NS5). Government has the responsibility, from a public safety perspective, to inform all flood plain property owners and residents of the risks that exist in the flood plain, as well as the steps they can take to minimize loss of life and property. The Provincial flood plain mapping program is an element of this strategy. Information and education should be an ongoing program, to address future changes in flood risks and communities. The existing flood risk mapping studies and relevant material are publically available today on the Department of Environment and Conservation website 31 . Disaster Preparedness (NS6). This type of planning is also a government public safety responsibility. Governments should review their vulnerabilities to flooding (and other disasters), and identify the roles and responsibilities of local officials, responders, and the public to protect life and property. Post Flood Recovery (NS7). Governments should have in place adequate plans to respond to flooding events. These plans would include roles and responsibilities of government agencies and officials, access to flooded areas, rescue and recovery of citizens, damage assessment, and dedicated funding to support these activities. Another element of this strategy is data collection. Documented evidence of flooding and resulting impacts has proved invaluable for this assessment. 6.3.2 Property Acquisition The Provincial government is in the process of updating old and undertaking new flood risk mapping. As flood risk mapping occurs, the Province should consider gathering specific data on those properties that have experienced high flood damages or repetitive loss. The Province should also consider its role in assisting communities through the process of buying out flood prone properties to reduce future losses. 31 http://www.env.gov.nl.ca/env TA1112733 page 146
Table 6-5 presents the range of average dwelling values in each Sub-region as published by Statistics Canada (based on Dissemination Areas) in their report on the 2006 Census of Population. The highest dwelling values are in West-2 and Central-1. The greatest range of average dwelling values is in East-1. This information may be beneficial to provincial and the decision makers when evaluating their general ability to purchase properties as a mitigation strategy. Sub-region Range of Average Dwelling Values 32 ($1,000s) West-CB 36 - 167 West-1 27 - 119 West-2 35 - 284 West-3 55 - 145 West-4 26 - 119 Central-1 38 - 225 Central-2 35 - 152 Central-3 28 - 74 East-1 25 - 391 East-2 37 - 209 East-SJ 47 - 204 Table 6-5. Range of Average Dwelling Values for each Sub-region 6.3.3 Strategies Applicable to Specific Sub-regions Table 6-6 lists the mitigation and adaptation strategies that communities within each Sub-region should first consider as part of a community‟sflood mitigation and adaption program. Depending on specific conditions in each community, other strategies not identified for that Sub-region, may be applicable. 32 Statistics Canada (2012) TA1112733 page 147
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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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Page 141 and 142: 5.2 Methods The methodology used fo
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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
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Page 199 and 200: FOX ISLAND RIVER-POINT GALLANTS GEO
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Page 205 and 206: Flood # Storm # General Location St
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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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