Regulatory Flood Map (Bylaw Flood Hazard) (English, CSV)

Explore the interactive map. Regulatory Flood Map (Bylaw Flood Hazard): English CSV file you can open as a table, filter, chart and export up to 10,000 rows. From City of Calgary, updated Sep 2026.

Format

CSV

Access

Table on demand (prepared when opened) and interactive map

Fields

3

Publisher-reported update

2026-09-03

Calgary’s Regulatory Flood Map shows the floodway, flood fringe and overland flood zones. The map is used for land planning purposes, showing the designated flood zones where various development and building regulations apply. The map shows the regulatory flood zones for the Bow River, Elbow River, Nose Creek and West Nose Creek. An annotation file is provided separately as an attachment: ( Bylaw Flood Hazard Annotations ). This map is the 1:100 flood extent calculated in 1983. Designated flood elevations (or steplines) associated with these zones are available separately. For more on the development and building regulations that apply in each designated flood zone, please refer to Calgary’s Land Use Bylaw, Part 3 Division 3. http://www.calgary.ca/PDA/pd/Pages/Calgary-Land-Use-bylaw-1P2007/Calgary-Land-Use-Bylaw-1P2007.aspx Are you building or renovating? If you are building or renovating, check the regulatory flood map on this page, and the 1:100 year inundation map (from Flooding in Calgary: Maps http://www.calgary.ca/UEP/Water/Pages/Flood-Info/Calgary-flood-maps/Flood-maps.aspx) to see if your property is in a flood risk zone. Since late 2011, property owners have been advised…

Access original file