Lake Erosion Prevention Fortress Rock & Flexamat

Flex-a-mat®, a tied concrete block mat, is used to control erosion along roadsides, in swales or ditches or slopes of highways, roads, or any area where soil sediment can be moved by water runoff. Flex-a-mat® is made into a pattern of molded concrete in rectangular or round shapes two-inches thick by 4 ¾-inches to 5-inches in length with one-inch gaps between the joints. The concrete shapes are tied together with high strength geogrid. This product results in the geogrid and the concrete becoming a high strength flexible hard armor against erosion, while allowing grass to become established in the tied concrete block mat.  

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