Rock Slide

Aerial View of Rockslide Area

On December 7, 2014, 80,000 cubic metres of rock and debris slid into the canyon blocking the Seymour River. River water levels upstream of the slide rose by 10 meters and forced the removal of Twin Bridges. In the next year Seymour Hatchery staff and volunteers continually monitored adult and juvenile fish. The results found that no migration was occurring upstream or downstream of the slide area!

In the fall of 2015 two engineering firms were hired to determine the best way to reduce the slide debris to enable greater water flows and fish migration. Seven different recommendations were made. A Roundtable was formed with all the stakeholders and partners to decide on one of the recommendations. The partners decided on drilling and rock breaking over a 2 – 5 year period as the best way to restore migration for all species on the Seymour River.

Since then, Seymour Salmonid Society, has taken the lead in managing and fundraising for the rockslide mitigation project.

This information page is intended to keep you updated on this project.

Rockslide Project Timeline

  • 2016 | October

    Low velocity rock breaking in the Seymour River Canyon. Slow motion video of some of the first explosions.

  • 2016 | August

    Project partners and funders gather at the slide site to celebrate to beginning of the rock breaking and

  • 2016 | July

    Danger tree removal for site safety.

  • 2016 | March

    This article featured in the 24 Hour Newspaper on March 18th, 2016. It highlights the incredible number of

  • 2015 | January

    Public access to the slide area and Fisherman's Trail are restricted to ensure scene safety. Walking and biking

  • 2015 | November

    Fish are trapped, carried in backpacks up 140+ stairs and then trucked to the hatchery upstream.

  • 2014 | December

    Rock slide occurs in the lower portion of Seymour River threatening all progress since the hatchery began operations