Soowahlie plan includes gravel removalBy Jennifer Feinberg
The Progress
Mar 06 2007The Soowahlie First Nation is going ahead with a fish-friendly plan to remove gravel and log debris this month from a storm-damaged section of the Chilliwack River.
The approval from Fisheries and Oceans Canada came in last week and the work is starting this week, says Doug Kelly, who’s involved in the project as president of Th’ewali Resources Ltd, a Soowahlie-owned company that will oversee the removal of 163,000 cubic metres of gravel from the river.
“It’s going to be a busy month for Soowahlie,” Kelly says, adding they’ll also do some dike repair to remediate the effects of earlier storms, after the gravel and logjams are removed.
Back in January the band decided something had to be done about the material that was piling up, worried that the buildup could lead to more erosion trouble for the Soowahlie-built dike, especially in light of the heavy snowpack building on local mountaintops.
The material could pose a hazard during future high-water events, or even threaten the Vedder Bridge. But the plan is to conduct the work with a careful eye on maintaining or improving the fish habitat.
“We’ve been mining gravel from the river since the 1950s,” Kelly adds. “We’ve never left our land in a situation where we couldn’t use it for anything else. The principle is quite simple, if you take something from Mother Earth then you have to give something back.”
The Soowahlie in-stream project is not only geared to flood risk prevention but is part of a long-term river management strategy, says Dale Paterson, DFO area chief of habitat and enhancement for the Lower Fraser.
“We haven’t seen anything like this before in this section of the river,” he says.
Gravel removal is more common in the lower section of the river, where the Chilliwack becomes the Vedder River, and is managed by reps on the Vedder River Management Committee.
“So it’s the same river system but once it flows under the bridge, it goes from high-energy to low-energy and so the gravel deposits build up faster in the Vedder section,” Paterson says.
The main river channel has shifted recently away from the Soowahlie side of the river, where it had been pointed.
“So we wanted to get in and do the protection work now during the lower flows, so it doesn’t pose a risk,” Paterson adds. “Theoretically doing the work now will keep the pressure off both banks and keep the flow in the mid-channel area.”
Some flood hazard mitigation work was undertaken in the upper river in 1992, but it didn’t go any further, he says. Now Fisheries and other stakeholders are studying a bigger snapshot of the Chilliwack River, under the aegis of the Chilliwack River Watershed Coalition, with the goal of devising a comprehensive and strategic approach to planning.
“It’s a real powerful process, owned and run by the people who live there,” the DFO official says.
And the Soowahlie gravel project certainly fits the profile of that long-term planning approach, he adds.
“Soowahlie designed the plan and we thought it was a good deal,” says Paterson. “It’s a well-engineered plan and when they’re finished there will be usable fish habitat. Also it takes pressure off the community in terms of safety, it’s building capacity for First Nations and it’s fish-friendly as well.”
The shifting river could one day see the main channel heading toward the reserve side of the river again.
“We’re very encouraged by approach taken by Doug Kelly and the band on this, which is that it’s not about fish versus people, it’s about fish and people. We heard that and we said, ‘Bingo.’ We’re partners in this,” he says. “But it’s going to need ongoing maintenance because it’s such a dynamic river. We know this is only a short-term thing. The gravel will fill in again but this is part of a longer-term process.”
Kelly says there’s also huge potential for sharing the knowledge and the know-how they’ll gain from this project.
“If we can demonstrate success from this, and take the learning from Soowahlie to Chehalis, or Skowlitz, or Seabird, Chawathil or Cheam, we could certainly apply the learning to other parts of the Fraser,” Kelly says.
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