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The potential for flooding exists along all streams and lakes in Alberta. To assist communities in keeping Albertans safe and protecting their properties from floods, the Government of Alberta manages the production of flood studies under the provincial Flood Hazard Identification Program. Provincial flood maps are used by all levels of government, consultants, industry, non-government organizations and the public. Flood maps can inform local land use planning decisions, emergency management operations and sustainable floodplain function initiatives. Flood maps are not available in all communities and flood risks exist in areas without flood mapping. |
| summary:
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The potential for flooding exists along all streams and lakes in Alberta. To assist communities in keeping Albertans safe and protecting their properties from floods, the Government of Alberta manages the production of flood studies under the provincial Flood Hazard Identification Program. Provincial flood maps are used by all levels of government, consultants, industry, non-government organizations and the public. Flood maps can inform local land use planning decisions, emergency management operations and sustainable floodplain function initiatives. Flood maps are not available in all communities and flood risks exist in areas without flood mapping. |
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Flood studies include detailed engineering reports and flood maps. The engineering reports are typically technical in nature and document the data, assumptions, and results of the hydrologic and hydraulic analyses required to create flood maps. Flood maps are created by combining hydraulic model results for different sized floods with high-accuracy ground information. Flood maps identify where water will flow during a flood, and what land could be flooded during different sized floods. Most flood maps focus on floods caused by high river flows when water escapes the river channel, most often experienced in spring or following summer rainstorms, but they can also show areas at risk from ice jam floods or document the extent of historic floods.Flood inundation maps show areas at risk for different sized floods, including ice jam floods in some communities, and identify areas protected by flood berms. Because they map a wide range of floods, they are most often used for emergency response planning and to inform local infrastructure design. Flood hazard maps define floodway and flood fringe areas for the 1:100 design flood and are typically used by communities for planning or to help make local land use and development decisions. The floodway is the portion of the flood hazard area where flows are deepest, fastest and most destructive. The flood fringe is the portion of the flood hazard area outside of the floodway, where flood water is generally shallower and flows slower than in the floodway. High hazard flood fringe is the area within the flood fringe with deeper or faster moving water than the rest of the flood fringe. Protected flood fringe identifies areas that could be flooded if dedicated flood berms fail or do not work as designed during the 1:100 design flood. Flood hazard maps define floodway and flood fringe areas for the 1:100 design flood and are typically used by communities for planning or to help make local land use and development decisions. Flood hazard maps can also illustrate additional information for communities to consider, including incremental areas at risk for floods larger than the 1:100 design flood, such as the 1:200 and 1:500 floods.Visit www.floodhazard.alberta.ca for more information about the Flood Hazard Identification Program. The website includes different sections for final flood studies and for draft flood studies. Flood maps can be viewed directly using the Flood Awareness Map Application at www.floods.alberta.ca.The Alberta Flood Mapping GIS dataset is updated when new information is available or existing information changes; therefore, the Government of Alberta assumes no responsibility for discrepancies at the time of use. |
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<pre class="wrap" style="width: 211.859px; font-family: "Segoe UI", Arial, sans-serif; font-size: 13.3333px; margin: 0px; white-space: pre-wrap; overflow-wrap: break-word;">Your use of this information will be governed by the terms of the Open Government Licence - Alberta, in force as of the date you accessed the information, found at https://open.alberta.ca/licence<pre class="wrap" style="width: 211.859px; font-family: "Segoe UI", Arial, sans-serif; font-size: 13.3333px; margin: 0px; white-space: pre-wrap; overflow-wrap: break-word;">Under the terms of the Open Government Licence - Alberta, the Information is licensed as is, and the Information Provider excludes all representations, warranties, obligations, and liabilities, whether express or implied, to the maximum extent permitted by law. The Information Provider is not liable for any errors or omissions in the Information, and will not under any circumstances be liable for any direct, indirect, special, incidental, consequential, or other loss, injury or damage caused by its use or otherwise arising in connection with this licence or the Information, even if specifically advised of the possibility of such loss, injury or damage.</pre></pre> |
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FAMA Public Data Distribution |
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Map Service |
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["Flood studies","Flood maps","Floodways","Flood Hazard Identification Program"] |
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en-US |
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