Water Stewardship Information Sources

ID 2003
Citation Winkler, RD, Giles, T, Turner, K, Hope, G, Bird, S, Schwab, J, Hogan, D and Anderson, D. 1998. The Silver Creek Fire Watershed Hazards Assessment. BC Ministry of Forests.
Organization FLNRO
URL http://www.for.gov.bc.ca/hfd/library/ffip/Winkler_R1998.pdf
Abstract/Description or Keywords The Silver Creek fire began on July 29, 1998 along the north fork of Silver Creek. From there it
spread north and east eventually covering the slopes to the west of the Salmon River from Silver
Creek to Gordon Creek and all of the area draining the east slope of the Salmon River from Wall
Creek to Rumball Creek. In total, the Silver Creek fire covered approximately 6,400 hectares. A
map showing the watersheds within the area burned by the fire is provided in Figure 1.
The immediate and long-term effects of the fire on both the land base and the residents of the lower
Salmon River Valley are of concern. Immediately following the fire, work began to assess and
rehabilitate the damage. During September and October of 1998, roads, trails and fireguards were
rehabilitated, slopes were grass seeded to reduce erosion, and fire control related damage to private
property was repaired. At the same time, the potential long-term effects of the fire on timber,
hillslopes and watershed values were assessed.
The effects of the fire on slope stability, erosion, stream channels, water quantity and water quality
were assessed by a group of forest hydrologists, geomorphologists, pedologists and geological
specialists from the Ministry of Forests, Ministry of Environment, Lands and Parks with the
assistance of private consultants. With the coming of winter and in consideration of the extent of
the fire, this review was by necessity an overview. The objectives of the watershed hazards
assessment were to identify areas of immediate concern, develop recommendations for salvage
logging and describe the likely future downstream effects of the fire. The assessment team visited
ground between Silver and Moutell Creeks to the west of the Salmon River and between Harold's
Brook and Hobson Creek to the east. The assessment work focused on the Crown forest, however,
potential valley bottom hazards (where streams flow onto alluvial fans near their confluence with the
Salmon River) were also considered.
Though a clear indication of valley bottom hazards is provided in this report, the group did not
assess property specific issues on private land. The identification of specific issues related to
individual properties and improvements will require the commissioning of detailed investigation by
specialists. Private property owners should obtain advice from specialists experienced in debris flow
hazard and risk assessment and in protection works design (engineers, hydrologists and
geoscientists).
This report describes hillslope, stream channel, water quality, flooding and physical valley bottom
hazards for watersheds draining the area burned by the Silver Creek fire. It is not considered an
exhaustive analysis but rather is intended to provide general information to the public and resource
agencies. Supporting documents to this assessment report, including the Technical Supplement,
maps and the Silver Creek Fire Post Seeding and Monitoring Report ; wildfire, sediment, erosion, landslide, peak flow
Information Type report
Regional Watershed Shuswap
Sub-watershed if known Silver Creek, Salmon River
Aquifer #
Comments
Project status complete
Contact Name Rita Winkler
Contact Email [email protected]