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Thompson Watershed Risk Assessment

A Disaster Mitigation Project on the Risks of Flood, Landslide and Debris Flows

The 2018-2019 Assessment is Complete

The 2018-2019 work of the Thompson Watershed Risk Assessment is now complete, and the project deliverables are available.

The Fraser Basin Council encourages all orders of government with flood-related responsibilities in the Thompson River Watershed to make use of the project report, online geohazards map and other deliverables. These will interest regional districts, municipalities, First Nations governments, tribal councils, and provincial and federal government agencies.

Read about the assessment and projected next steps.

Also see Thompson Flood Projects (2019-2020) for a look at new work underway.

Background on the Risk Assessment


The blue waters of the Thompson River meet the sediment-rich brown flow of the Fraser River at Lytton – an iconic scene. Photo: Picture BC/Province of British Columbia


About the Risk Assessment

The Fraser Basin Council is leading a risk assessment on flood, landslide and debris flows throughout the Thompson River watershed – including the North Thompson, South Thompson, Nicola, Bonaparte and Thompson Rivers (from Kamloops to the Fraser/Thompson confluence at Lytton).

The review comes at an important time. Over the last two decades, there have been high peak river flows in the watershed during spring freshet, as well as intense summer rain storms with flash floods in some locations, and winter ice jams in others.

The risk assessment will identify flood hazards, potential impacts, and community and infrastructure vulnerabilities as well as the overall flood risk profile for the region. The aim is to raise awareness, support mitigation planning and action, and reduce the magnitude of future emergencies.

Formally launched February 14, 2018, the risk assessment is managed by FBC’s Thompson Regional Office. Work is expected to complete in March 2019. For a look at a summary and presentations from the launch event, see Risk Assessment Background below.

This initiative will bring together representatives of large cities, small municipalities, rural areas and First Nations communities – with the intention of identifying common risks and opportunities to work together across the watershed. Over 200,000 live in the Thompson watershed, which spans 5.6 million hectares.

FBC will compile data from previous risk assessments of the past 15 years, and fill in information gaps to have a consistent, regional-scale approach across the watershed. Another component is to identify flood mapping and mitigation planning that is completed or underway.

The Thompson Watershed Risk Assessment falls within Stream 1 (Risk Assessment) of the National Disaster Mitigation Program.  Other streams are: Stream 2 (Flood Mapping); Stream 3 (Mitigation Planning); Stream 4 (Investments in Non-structural and Small Scale Structural Mitigation Projects). The assessment is funded in equal parts by Emergency Management BC and Public Safety Canada.


See our overview brochure.

Advisory Committee

An Advisory Committee to the Thompson Watershed Risk Assessment has been established — with representation from elected officials and staff from local government, First Nations and the province of BC. The Committee has met twice to date.

See the Committee's Terms of Reference (April 2018).

Updates and Reports

An interim deliverable in the risk assessment was a report from BGC Engineering Inc., which set out a list of candidate project areas for which to pursue funding under the National Disaster Mitigation Program (NDMP) - Stream 2 in 2019/20. The funding would be used to complete flood mapping and acquire LiDAR data to support detailed flood mapping. See:

Here are summaries and presentations from meetings of the Thompson Watershed Disaster Mitigation Advisory Committee

Risk Assessment Background

The risk assessment initiative was launched February 14 at a Community-to-Community Forum in Kamloops, which brought together representatives of local governments and First Nations in the Thompson. Here is a forum summary and presentation slides (PDF):

Thompson Watershed Map

The map Jurisdictions within the Thompson Watershed shows administrative and watershed boundaries. View a larger version (PDF).



Mike Simpson, MA, RPF
Senior Regional Manager, Thompson
Fraser Basin Council

T: 250 314-9660
C: 250 299-1202


Our Vision

Social well-being supported by a vibrant economy and sustained by a healthy environment.

About the Fraser Basin Council

The Fraser Basin Council (FBC) is a charitable non-profit organization that brings people together to advance sustainability in the Fraser River Basin and throughout BC. Established in 1997, FBC is a collaboration of four orders of government (federal, provincial, local and First Nations) along with those from the private sector and civil society. We work with people in multiple sectors, helping them find collaborative solutions to today’s issues through a commitment to the social, economic and environmental dimensions of sustainability. Our focus is on healthy water and watersheds, action on climate change and air quality and strong, resilient communities and regions.

FBC Project and
Partner Sites

Plug in BC:

BuySmart Network:

BC Rural Network:

Rethinking our Water Ways:

ReTooling for Climate Change:

Climate Action Toolkit:

Contact Us

FBC has offices in Vancouver, Kamloops, Williams Lake, Quesnel and Prince George. We also have staff located in Abbotsford and Vernon.

To reach us, see FBC Offices and FBC Staff.

Our main office is:

Fraser Basin Council
1st Floor, 470 Granville Street
Vancouver, BC V6C 1V5

T: 604 488-5350
F: 604 488-5351