There’s nothing like heavy rain, wind and erosion to destroy a road embankment. Fortunately, there’s nothing like a Permapost retaining wall to get it back in service and keep it there. Our timber crib retaining walls stand up to the elements and often last more than 80 years. They’re custom built, pre-fabricated, pre-treated, and simply designed for any crew to install. They stand up to vibration, erosion, water, decay and whatever else Mother Nature can muster. Plus, unlike concrete or steel, our timber walls have a natural appearance that fits in beautifully with the environment.