The constant turbulence and changing conditions at the Big Bar landslide in the Fraser River make it a challenging work site. (Courtesy of Incident Command Post)

‘Significant progress’ as 30,000 fish move through Fraser River at landslide site

While chinook numbers are dropping now, they’re expecting a million pink salmon to head upriver

It’s being called a milestone in terms of fish moving past the landslide obstruction on a remote part of the Fraser River.

“Significant progress” was noted on Sept. 1 at the Big Bar slide site when 30,000 fish were detected swimming past the blockage on their own.

“That was a significant accomplishment and a real milestone,” said Michael Crowe, environmental unit lead for the Big Bar Incident Command Post team, about the natural fish passage that instruments recorded.

Multi-pronged efforts by First Nations, federal and provincial officials are continuing to seek ways to help the fish blocked at the slide site, northwest of Kamloops.

“The chinook numbers are dropping,” Crowe said, adding that fish capture numbers had declined, but more sockeye and pinks will be arriving.

“We expect pinks to arrive in very large numbers in the coming days.”

They estimated that more than a million pink salmon maybe on their way, and they are looking for new fishing areas to increase productivity.

“We are uncertain if the recent success we’ve seen with sockeye will be achieved with pinks,” Crowe said.

In terms transporting fish by helicopter, so far they’ve moved more than 60,000 fish upriver of the slide. Another 73,000 “free swimming” fish have made it past the blockage on their own, including the 30,000 in one day, due to ongoing engineering work and rock scaling efforts where the main priority is creating channels for the fish, Crowe explained.

READ MORE: Goal is to free the fish as fast as possible

Work on a second fish wheel, and possible dipnetting is being considered. Test runs of the newly opened road look promising for trucking fish in the hours helicopters cannot fly.

The available work area for the rock scalers increased dramatically since the water levels started dropping in the past few days.

Plans are underway to install “anchor points” into the east wall of the canyon so that materials and heavy objects can be moved on cables across the river. The idea is to bring in a “spider excavator,” a non-tracked type of equipment, that can navigate over the constantly changing and challenging terrain, with specialized wheels. The plan is to bring it to the base of the slide in order to open up a big chunk of the blockage to allow fish to pass more freely.

About 190 personnel have been working on various aspects of the incident since it was reported in late June, from scientists and engineers, Indigenous fishing crews, archaeological monitors, field and support staff from the BC Wildfire Service, as well as biologists, rock scalers and hydrologists.

READ MORE: Helicopters moved 44,000 fish


@CHWKjourno
jfeinberg@theprogress.com

Like us on Facebook and follow us on Twitter.

Just Posted

Boil water notice lifted Sunday night

Testing confirms water is safe again

Water test passes first hurdle

Second test results expected tomorrow

Freezing rain warning issued for central Interior Remembrance Day

Highway alerts in place for Begbie Summitt and Pine Pass

BCTF rejects mediator’s recommendations for settlement

Negotiations between B.C. teachers and the province will continue

VIDEO: Hong Kong police shoot protester, man set on fire

It was the second protester shot since the demonstrations began in early June

Terrace RCMP investigating suspicious death of a man in Thornhill

Kamloops resident was found unresponsive early Sunday morning, died hours later

Sportsnet fires Don Cherry after negative comments about immigrants

Don Cherry had said immigrants don’t wear poppies like other Canadians do

Trudeau’s new cabinet: Gender parity because it’s 2019? Or due to competence?

Prime Minister Justin Trudeau will soon appoint his new cabinet

Canada among three G20 countries least likely to hit emissions targets

It says Canada, South Korea and Australia are the farthest off

Conservatives’ Scheer wants Trudeau to open Parliament Nov. 25

That’s five days after Justin Trudeau is scheduled to swear in a new cabinet

Last remaining Centurion tank from the Korean War makes its journey ‘home’ to B.C.

Tank arrives in B.C. the day before Remembrance Day after a more than 4,500-kilometre transfer

‘Your vehicle burns a lot of fuel:’ Victoria drivers wake up to angry notes

‘This handbill was left on your vehicle because your vehicle burns a lot of fuel,’ notes read

Canadians mark Remembrance Day this morning

This year exactly 101 years to the day after the end of the First World War

Most Read