Because the beaver isn't just an animal; it's an ecosystem!

Category: Beavers and Roadways


It’s much harder to actually solve the problem than to just blame beavers and hope for the best. I mean you have to first study it’s origin, which takes precious resources and brain cells. Then you have to think about the solution and that might require actually changing your behavior which is never fun. You can see why blaming beavers is easier.

But Washington isn’t doing it.

In the Duwamish Watershed, Communities Respond as Coho Salmon Face a New Threat

Every year, salmon journey from the open waters of the North Pacific, pass through estuaries along the coast, and swim upriver to spawn in the freshwater streams and creeks in which they were born. Yet across the western coast of North America, coho salmon are dying in large numbers as they return to urban watersheds. In West Seattle, a team of citizen scientists are surveying salmon to understand how many are affected. (more…)


Beaver author Ben Goldfarb has an important article about wildlife infrastructure in Vox today. Apparently there are very very few places that he cannot get published. And all the animals are lucky.

Animals need infrastructure, too

Earlier this month, the House passed the INVEST in America Act, a $1.2 trillion infrastructure bill that President Joe Biden is expected to soon sign into law. The bipartisan package earmarks billions of dollars in funding for highway maintenance, broadband internet, and airport upgrades — as well as $350 million for animal-friendly infrastructure like bridges, underpasses, and roadside fences. Although that provision is a tiny slice of the bill, it’s easily the largest investment in wildlife crossing. (more…)


Yesterday Mike Callahan gave a VERY interesting presentation virtually at the International on Ecology and Transportation. No I didn’t know there was such a thing either, but I did know that Ben Goldfarb’s upcoming book is on road ecology, so I guess it’s a thing. I’m assuming we’ll get to see the recording soon but here’s Mike’s information.

Protecting Roads from Beavers

Technical Session 23: Good Things Come in Small Mammal Packages

Beaver dammed road culverts are a significant problem across North America, damaging road infrastructure, creating safety hazards for the motoring public, creating hazards for road crews, and diverting limited road maintenance resources. As the North American beaver population has increased so hasn’t the number of conflicts with our transportation infrastructure.

Historically nuisance beavers were trapped and killed when road flooding problems occurred, and road crews were left to clear the damming obstructions. This can be a heavy burden on a highway department’s manpower, machinery and budget.

In contrast, it is now widely accepted that the dams that beavers build can provide immense ecological benefits to wildlife, stream health, clean water, and reducing wildfire damage. So whenever possible it is desirable to keep beavers on the landscape.

Fortunately, we can now protect our infrastructure and coexist with beavers at the same time. Properly designed and installed water control devices (e.g. flow devices, Beaver Deceivers™) can protect nearly every road. They are cost-effective, long-term methods to prevent infrastructure damage by beavers. As a result, many State and Municipal Highway Departments are now utilizing these best management practices to protect infrastructure from damage, saving time, money, and improving road and worker safety in the most environmentally friendly manner possible.

The presenter Mike Callahan is the President of the Beaver Institute. Since 1998, as the owner of Beaver Solutions LLC he has nonlethally resolved over 1,750 beaver – human conflicts with these innovative devices. He will share his wealth of experience resolving beaver conflicts for local and state highway departments, and how audience members can learn to do it also.

The Beaver Institute offers extensive Self-Help instructional materials as well as a professional online course for those interested in doing this work professionally. Since 2019 Mike and Beaver Institute have been training professionals across North America how to be successful doing this work themselves.

 Wonderful Mike! How did it go? How many attended? And who paid attention? I’ve had a few emails in the past work from shy CDFW workers who found the beaver summit online and are working their way through the presentations. Interesting they are frustrated with CDFW’s beaver posture overall and one even thought we were close to a tipping point.

I’ll believe it when I see it.

I worked yesterday on the last slide for the Colorado Beaver Summit. In it I am trying to show our goals for California’s future management of beavers. What do you think?


It’s a funny thing. You make a fancy ravioli dinner for 12 of your closest beaver friends and you spend the evening chatting about the first East Coast beaver conference or repeated train rides to sacramento to get the governor to back the right legislation or countless meetings with the watershed association and fish and game to replant creek or remastering the renaissance style of painting directly with eggshell and you feel like the world is pretty  close to getting it right. It’s all within reach, and you are sitting with the right group of people to reach it.

And then you get up in the morning and read an article like this, and realize how far we truly have left to travel.

Beavers create travel headache for southeast Muhlenberg residents

MUHLENBERG COUNTY, Ky. (1/3/20) — The beaver population in southeastern Muhlenberg County has created a dam issue along Mud River Union Road.

There are approximately 50 residents who live at the end of the county road, where a nearby creek flows into Mud River. It appears water is across a section of the road about a half-mile leading to the homes, which makes travel difficult.

Muhlenberg County Judge-Executive Curtis McGehee said this week that the issue was brought to his attention during his tenure as sheriff a few months ago. He is speaking to road department officials and magistrates about hiring a beaver trapping expert to help remedy the issue.

Until the beavers are under control in that area, there’s not a whole lot officials can do.

It takes a judge to kill a beaver in Kentucky? 

Well, I guess a flow device is right out then, your honor? I mean if you’re going to falsely incarcerate thousands, bemoan the closing coal plants  and shut down all the women’s clinics, then progressively managing beavers is impossible. Right?

Too bad for Muhlenberg. Because this whole flooding this is going to happen again. Soon.



You start to realize you’re literally “not in Kansas anymore” when not only do people know about their local beaver habitat, but they get upset when city road work interferes with it. Case in point, Whistler BC.

 

Work on Alta Vista road results in removal of beaver habitat 

Recent work by the Resort Municipality of Whistler (RMOW) to prevent damage to a road in Alta Vista, which resulted in the removal of a beaver dam from a nearby pond, is “a textbook example” of the RMOW putting infrastructure over wildlife habitat, according to a longtime local conservationist.

Last month, the municipality began work in the neighbourhood to ensure the integrity of the road on Hillcrest Drive after a beaver dam had caused the water of the pond to rise “to a level that it was seeping underneath the road,” which was “at risk of failure,” explained Whistler Mayor Jack Crompton.

As a result, the RMOW removed one of two beaver dams at the site and drained approximately 1.5 metres from the secondary pond. The RMOW confirmed staff has observed “fresh beaver activity” at the pond since the work was completed.

Dave Williamson, principal at Cascade Environmental Resource Group, the firm contracted by the municipality to deal with the issue, said the removal of beaver habitat was done as a last resort after previous mitigation efforts had failed.

“I think it was necessary. We’re talking about, basically, protecting infrastructure. You can’t put the sewer line at risk,” he said, referring to Whistler’s main sewer line, which runs under the road.

Come on people. It was a choice between your beloved road and your beloved beavers! Which are you going to choose? I mean its not like there are a 100 cities within a 50 mile radius of us that have used culvert protection or installed a beaver deceiver. That’s certainly nothing that would occur to you,

Beavers have been an “on-and-off problem for years” at the site, Williamson said, noting “a beaver deceiver,” a fence that is designed to protect the upstream opening of a culvert, had been installed at various points but ultimately proved ineffective.

“We were getting to the point where we were having to clear the dam almost on an annual basis because they were damming right at the front of the culvert,” added Williamson.

“This is kind of a valley-wide problem. We have a growing beaver population, I believe, in town, and they go wherever the wood and the water is and start making dams.”

We tried open heart surgery with some tweezers and a can of hairspray and it didn’t work. So we know that never works. Much better to kill them six times in the next seven years and deal with whatever political fallout that comes.

But Bob Brett, a biologist who has been monitoring the local beaver population since 2007, said the animal is a keystone species that not only creates habitat for other wildlife, but also provides a barometer of the health of local wetlands.

“If you build any infrastructure in beaver habitat that will be damaged by beaver activity, then beavers are a problem. But beavers actually aren’t a problem; they’re essential to our ecosystem,” Brett said, noting that there are approximately 100 beavers in Whistler.

“We’ve lost 75 per cent of our wetlands in Whistler and it’s very important that we retain the ones that are still around. Beavers mean wetlands.”

Brett believes the recent work at Alta Vista is “a textbook example of people doing a job well but not within the overall framework of protecting the environment first,” he said. “I don’t fault RMOW staff for protecting infrastructure, per se, because that’s their mandate. But why is that their mandate? Why isn’t their mandate within an overall framework of protecting wildlife habitat?”

Whoa Brett! We like you!  You are our brother from another mother! You tell em’!

“Whistler is built in what was originally massive beaver habitat. There were well over 100 beavers, no doubt. So if infrastructure were built to be beaver-safe—that is to say it allows for that sort of flooding, then it wouldn’t be a problem in the first place,” added Brett. “Secondly, in that case, where it’s possible to retrofit, did they look at lining the pond at one end? Did they look at any sort of waterproofing of the infrastructure versus destroying beaver habitat?”

According to the RMOW’s Beaver Management Policy, the goal is “to encourage coexistence between humans and beavers through management techniques that limit habitat alteration and provide long-term solutions.” Brett would like to see that commitment put into action more effectively.

“I would like this to be a case study of how the municipality can do things better in the future, so that they actually walk the talk of protecting wildlife habitat,” he said.

Me too! I think that’s a great idea and I’m going to bet every single voice on this website agrees with me! Go and try harder, Whistler, The closest Canadian out your way that can help with this is Adrien Nelson, but if that doesn’t work out try Beavers NorthWest in Seattle. It’s a four hour drive but completely doable in the fall. And i bet very pretty. Call Ben Dittbrenner or Adrien Nelson, will you?

And let’s take valuable space for Show and Tell now. I was looking recently at an issue of Ranger RIck magazine and thinking how cool the bubble letter on the cover was and wishing I could do it. And LO and behold I figured it out! This is very helpful because it means I can make a work show up on any photo without putting a shape behind it. The possibilities are endless.

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