Water Stewardship Information Sources

ID 2157
Citation Jordan, P, Covert, A, Glums, D and Curran, M. 2007. Sitkum Creek Fire, 2007, N70347 Post0Wildfire Riska Analysis. FLNRO
Organization FLNRO
URL http://www.rdck.ca/assets/Services/Emergency~Management/Documents/Sitkum_Creek_Post_Wildfire_Risk_Analysis.pdf
Abstract/Description or Keywords The Sitkum Creek fire burned an extensive area in the upper portion of the Sitkum Creek drainage. The fire perimeter totals 39% of the watershed; areas of high and moderate vegetation burn severity cover 10 and 11% of the watershed respectively. High soil burn severity and water repellency are widespread in some areas, although not as abundant as in some other fires. Some small tributary drainages have high vegetation burn severity in up to 50% of their drainage area. The most likely hazards to occur in the first 3 to 5 years following the fire are: increased streamflow from the burned area, especially during high-intensity summer rainstorms and longduration fall rainstorms; soil erosion from the burned area; and debris flows in tributary streams. Possible debris flows in tributaries T1 and T2 have the potential to cause a debris flood in the main channel of Sitkum Creek, if they were to occur during a time of peak discharge, or temporarily block the flow of the main creek. Sitkum Creek is a community watershed, and its fan is heavily developed. There are high risks to houses and the highway from flooding, debris floods, and possible avulsion of the creek channel. The risk of water quality impacts due to sedimentation of the creek is also high.
Information Type Report
Regional Watershed Sitkum Creek
Sub-watershed if known
Aquifer #
Comments
Project status
Contact Name
Contact Email