PHOTOS: Highway 1 improvements restoring fish habitat in Glacier National Park

Danielle Backman, impact assessment scientist for Glacier National Park, checks for bull trout on Connaught Creek. (Liam Harrap/Revelstoke Review)
When Highway 1 was built 57 years ago, little regard was given to fish. The culvert near Rogers Pass Discovery Centre was considered a high priority as fish could not pass through. In 2017, Parks Canada built a new culvert that was longer, wider and had a ground bottom. For the first time in over half a century, bull trout can cross Highway 1. (Liam Harrap/Revelstoke Review)
This is called a box culvert. The Government of Canada pledged almost $3 billion in infrastructure funding to Canada’s national parks. The funding allows projects like this said Blackman to merge engineering and ecological integrity. (Liam Harrap/Revelstoke Review)
Last summer, Parks Canada improved the river’s bank. Making the river meander, built pools, planted vegetation that will eventually shade the creek and drop leaves, providing nutrients downstream. “It’s not easy to build a creek,” said Backman. (Liam Harrap/Revelstoke Review)
Building the culvert. (Submitted)
The old culvert ended with a high waterspout which did not allow fish to pass. (Submitted)
Native species, such as fireweed are now growing along the bank, adding vibrance. (Liam Harrap/Revelstoke Review)
Parks Canada planted native seeds and willows to revegetate the bank. (Liam Harrap/Revelstoke Review)
This is the end goal. To eventually have plants and willows tighly growing above the creek, providing shade and nutrients in the water below. (Liam Harrap/Revelstoke Review)
The old creekbed has been kept as water seeps from the forest and mountains above. (Liam Harrap/Revelstoke Review)
The old culvert. Parks Canada hopes it will be used as a corridor for animals, such as bears, to safely pass underneath Highway 1. So far, wildlife cameras have only captured pine martins using itl. (Liam Harrap/Revelstoke Review)
The new culvert and the old. (Liam Harrap/Revelstoke Review)

When Highway 1 was built over Rogers Pass 57 years ago, the watershed was changed.

Creeks that once flowed unfettered, were now funneled through slick metal culverts, making it impossible for fish to continue upstream and spawn.

“Fish are an indicator of habitat health,” said Shelley Bird, communications officer for Parks Canada in Glacier National


In 2014, the Government of Canada announced almost $3 billion to build and renew infrastructure in Canada’s national parks. Part of that funding is being spent to improve and reduce vehicle congestion on Highway 1 through Glacier National Park.

READ MORE: Upgrades coming to Highway 1 between Glacier National Park and Golden

Since the highway is under construction, it’s allowing Parks Canada to make ecological changes, such as building fish-friendly culverts.

The culvert on Connaught Creek, near Rogers Pass Discovery Centre, was identified as a priority. Before the construction of the highway, bull trout would spawn in gravel flats, which are roughly seven kilometers upstream.

The old creek bed and culvert still remain as water seeps from the forest. Blackman said it’s good habitat for salamanders. (Liam Harrap/Revelstoke Review)

The old culvert underneath Highway 1 was narrow and had a metal bottom, which channeled the water into a fast current – too fast for fish to swim against. Also, the old culvert ended with a high waterspout which did not allow fish to pass.

“Bull trout need pools for resting and a mix of fast and slow water, which is good for bugs. And the bugs feed the fish,” said Danielle Backman, impact assessment scientist for Glacier National Park.

It’s a delicate cycle.

Regardless, making the creek suitable for bull trout again required hard work, such as creating pools and planting willows, which shade the water. The vegetation eventually drops leaves, providing nutrients downstream.

“It’s not easy to build a creek,” Backman said.

Bull trout are the primary fish species in the Rogers Pass area. While they are not a species at risk in Glacier National Park, they are threatened in areas of Canada due to poaching and encroachment of non-native species like Brook trout.

“We want to maintain habitat to not put them on the path to at risk,” Bird said.

READ MORE: To fish or not to fish: proposal to re-open Revelstoke Reach to angling

The new culvert that was built-in 2017, is wider and has a ground bottom.

Last summer, Parks Canada confirmed that bull trout were using it.

“For the first time in 57 years,” Bird said.

Bull trout. (File)

Parks Canada is evaluating culverts throughout the park, determining if they should be changed even if they do not have fish.

“Water is important, regardless if it has fish in it,” said Backman.

The creeks provide habitat for insects, birds, mosses and plants.

Without the large federal infrastructure investment, Backman said, projects like this would not exist. She continued that the investment provided us with opportunities and was a way to merge engineering and ecological integrity.

“It’s a win-win.”

She said that many Canadians think the funding was just for roads and buildings, but it allowed Parks Canada to construct infrastructure that was not as disruptive as before.

“People drive along the highway and don’t even know what’s happening underneath,” said Backman.

Bull trout do have one more obstacle before getting to the gravel flats – an old weir that was used for drinking water roughly 700 metres upstream from the highway. Parks is in the process of removing it.

“At the end of the day, the creek is better than it was and will get even more so,” Bird said.



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