Description
The Upper Liard flood hazard mapping study was completed between May 2025 and March 2026. Learn more by visiting the Yukon Flood Hub.
In the resources section below, you can find the project summary, technical report, "What We Heard" report, GIS data files, and flood maps for specific areas.
"AEP" in the flood map filenames below refers to "Annual Exceedance Probability", the annual likelihood of a flood occurring, expressed as a percentage.
The flood scenarios used for mapping in the Yukon are the following:
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0.5% event (1-in-200 chance of occurring in any year),
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1% event (1-in-100 chance of occurring in any year), and
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5% event (1-in-20 chance of occurring in any year).
For more information see What is flood mapping? or email FloodMapping@yukon.ca.
See also
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Upper Liard map viewer | HTML | Open resource | |
| Upper Liard technical report | Open resource | ||
| Upper Liard Project Summary | Open resource | ||
| Upper Liard "What We Heard" report | Open resource | ||
| Upper Liard FGDB (file geodatabase) data | Unknown | Open resource | |
| Upper Liard SHP (shapefile) data | ESRI Shape | Open resource | |
| Upper Liard flood hazard mapbooks | HTML | Open resource | |
| Upper Liard 0.5% AEP flood hazard maps | HTML | Open resource | |
| Upper Liard 0.5% AEP with climate change flood hazard maps | HTML | Open resource | |
| Upper Liard 1% AEP flood hazard maps | HTML | Open resource | |
| Upper Liard 1% AEP with climate change flood hazard maps | HTML | Open resource | |
| Upper Liard 5% AEP flood hazard maps | HTML | Open resource | |
| Original metadata (https://open.yukon.ca) | HTML | Open resource |