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We have a pond with beavers there is a 24 inch drainpipe under the road approx 24 to 30 ft long it was plugged , causing the pond to overflow and flood the road! Managed to clear the blockage and the pond water level dropped to just above the top of the pipe and now the pipe is plugged solid . If I put a new pipe in any suggestions on keeping it clear . The road is just a walking trail TIA
 

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Welll....... around my area there is a local term for how you "fix" this this sort of thing. It's called "The Three S's".

S number 1: Shoot it
S number 2: Shovel it... into a deep hole
S number 3: Shut up about it.
 

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Flood control

In the Adirondacks, the local town highway crew placed large rocks/boulders in a semi-circle (spillway) around the culvert opening. They also drove rebar spaced 6-8” vertically across the mouth of the culvert opening.


Beavers build their dam on the spillway; the overflow still goes through culvert. The dam is easier to remove from the spillway, and avoids plugging of the culvert.


They also put in a smaller culvert, higher and some distance from the main culvert for overflow.


The only real solution is to eliminate the beavers. The value of beaver pelts is low, but trappers get permits to trap them periodically.
 

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You could try this
Beaver Dam Pipes | Beaver Instituteâ„¢

Or do like I do... shoot em with #2 shotgun shells. It's really easy. Wait till an 1hr after dark and shine a spotlight into the water in the in the same spot for a while. Don't shine it around. The beaver will come in to check it out and only the head will really be out of the water. Hence the shotgun. Trying to shoot a small moving head on water at night with a rifle is tough and dangerous. Don't try to shoot the body. Even though it's only 2-3 inches of water, it will/can stop the bullet from hitting the body.

I take out at least one a yr in my pond. Suckers come down the creek and try to take home. Not on my watch.
 

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We had a problem with them, ended up flooding our potato field, one of our hay fields and another field that my wife's uncle's farm uses. There is only one long term fix, eliminate the beaver population, we ended up getting a permit, once the beavers were trapped out we destroyed the dams. Now the fella that trapped them comes back once a month looking for signs and traps them out before they can construct a new dam. Now sure what your laws are, but around here they are somewhat protected and require a nuisance permit, doesn't say we have to trap them, but does have rules for destroying the dam, which we followed (sort of).
 

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Discussion Starter #8
We had a problem with them, ended up flooding our potato field, one of our hay fields and another field that my wife's uncle's farm uses. There is only one long term fix, eliminate the beaver population, we ended up getting a permit, once the beavers were trapped out we destroyed the dams. Now the fella that trapped them comes back once a month looking for signs and traps them out before they can construct a new dam. Now sure what your laws are, but around here they are somewhat protected and require a nuisance permit, doesn't say we have to trap them, but does have rules for destroying the dam, which we followed (sort of).
Going to check with the forest rangers
 

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The sound of flowing water

There was an interesting story on NPR a while ago about research on how beavers "know" to build/repair. It has been linked to the sound of flowing water. Some park service up north now plays the sound of flowing water in an area where there are no leaks. The beavers keep adding material but the water level remains the same. So, the lakes in the parks keep flowing into streams as normal and the beavers are busy building big brush piles. And, the trails in the park remain dry.

If one can place a pipe through the dam underwater so no sound is generated, they won't try to "plug it up" or at least that's what the researchers claim.

Here's a link to the original research from back in the last century: The Sound of Running Water Puts Beavers in the Mood to Build | Mental Floss
 

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We have a pond with beavers there is a 24 inch drainpipe under the road approx 24 to 30 ft long it was plugged , causing the pond to overflow and flood the road! Managed to clear the blockage and the pond water level dropped to just above the top of the pipe and now the pipe is plugged solid . If I put a new pipe in any suggestions on keeping it clear . The road is just a walking trail TIA
chuckle....I have had that problem very frustrating. The only sure fire cure would be to kill every beaver in the watershed and neighboring water sheds. I finally raised the road thinking that would give them all the water they wanted and still allow water flow under the road but i was wrong! Beavers just made the dam higher and pond bigger. I just gave up and clear out enough every month to keep water flowing and stocked the pond with trout. Nice to have fresh trout when ever you wish. Another result was i get more balds around and that seems to deter the beavers some what..maybe the balds eat one once in a while?

I ended selling the place and buying a place on a much larger creek with salmon runs and lots of eagles no beavers just otters.:usa
 

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Removing them is the only real solution.

I have two ponds, one flowing into the other.

There were beavers here when we bought the place.

They were evicted.


Create a leak. Find an advantageous position with the lodge between you and the leak.

Get in a comfortable shooting position just before sunset.

Aim just behind the V in the water.
 

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In the Adirondacks, the local town highway crew placed large rocks/boulders in a semi-circle (spillway) around the culvert opening. They also drove rebar spaced 6-8” vertically across the mouth of the culvert opening.


Beavers build their dam on the spillway; the overflow still goes through culvert. The dam is easier to remove from the spillway, and avoids plugging of the culvert.


They also put in a smaller culvert, higher and some distance from the main culvert for overflow.


The only real solution is to eliminate the beavers. The value of beaver pelts is low, but trappers get permits to trap them periodically.
Do you have photos or sketches of the stone spillway? We have beaver problems at a couple of locations in town that I would like to address.

Thanks

Dave
 

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The hidden drain method does work

You could try this
Beaver Dam Pipes | Beaver Instituteâ„¢

Or do like I do... shoot em with #2 shotgun shells. It's really easy. Wait till an 1hr after dark and shine a spotlight into the water in the in the same spot for a while. Don't shine it around. The beaver will come in to check it out and only the head will really be out of the water. Hence the shotgun. Trying to shoot a small moving head on water at night with a rifle is tough and dangerous. Don't try to shoot the body. Even though it's only 2-3 inches of water, it will/can stop the bullet from hitting the body.

I take out at least one a yr in my pond. Suckers come down the creek and try to take home. Not on my watch.
Va. Dept of Highways paid a contractor to put in something similar to protect culverts and it worked fine, until we got over 20" of rain in a 12 hour period which wiped out the whole road. They replaced the round culverts with 2 6' box culverts and so far the beavers haven't been able to make a dam stick on the concrete floor of those.

On the original structure the drain was probably 20' out from the culverts and protected by hog panels but the key was getting it so water flowed so slowly at the intake the beavers didn't know where it was coming from.

Treefarmer
 
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