The Beaver Deceiver or trapezoidal culvert fence was invented by Skip Lisle and is explained here by Mike Callahan. A free description of this and other beaver management tools is available here from Sherri Tippie and the Grand Canyon Land Trust. Blocked culverts are the easiest problem to fix and its solutions are among the best understood and most often employed.
One comment on “Protecting Culverts”
[…] works but dammit, we keep trying over and over. You would think we’d learn something new or maybe read something new on our phones. But we are from public works, We only have these hammers in our toolbox but so we keep using […]