BLOCKED ROAD CULVERTS ARE THE MOST COMMON BEAVER PROBLEM WE SEE
To a beaver, a road bed with a culvert pipe probably looks like a hole in a large dam. Since beavers have an innate ability to plug leaking holes in their own dams, they are also very good at blocking water flowing through road culverts. By blocking a culvert beavers can easily create a large dam and pond. A blocked culvert can quickly flood road causing a public safety issue, and can be a significant drain on limited manpower and financial resources.
Fortunately, properly designed and constructed culvert protective devices have proven to be extremely effective in eliminating culvert damming by beavers. Our flow devices have a 98% success rate protecting culverts despite the presence of beavers (see Beaver Solutions Studies ). Different culvert flow device options include: Keystone Fences™, Fence and Pipe Devices, and Culvert Fences with Diversion Dams. They are so effective we can Guarantee them. Annual maintenance is usually less than one hour per year.
Keystone Fences™ – Culvert Protective Fences
Beaver Solutions LLC has installed hundreds of successful culvert protective fences. Our Keystone Culvert Fences are usually trapezoidal in shape and have a 96% success rate. They eliminate beaver culvert damming in several important ways.
First, the fence creates a long perimeter that the beavers must dam against. Typically over 40 feet, this long perimeter makes it much more work for the beaver to dam the culvert. This makes plugging the culvert less desirable, keeping it open to flow without obstruction.
Second, if beavers try to dam the culvert inlet, the Keystone Fence will force them to dam further and further from the culvert. This misdirection discourages damming on the fence.
Third, if the topography of the stream allows for water to surround the entire fence perimeter, the fence should be built in a trapezoidal (Keystone) shape. The trapezoidal shape discourages beaver damming because if the beavers start damming at the culvert as they get further away from the culvert inlet the opening that the stream is flowing into is widening. This widening of the water inlet reduces the water movement at the fence where the beaver is damming. Since the sound and feel of moving water are strong damming stimuli for beavers, their desire to continue damming is reduced.
Trapezoidal Keystone Fence Diagram