Specifications include, but are not limited to: The State of South Dakota Department of Game, Fish and Parks is requesting a bid for the following product, specs and quantities, and delivery to the requested locations. Brand Name – Flexamat (Motz Enterprises, Inc.) or equal - Specifications: A tied concrete block mat with doubled layered underlayment. Manufactured from individual concrete blocks tied together with high strength knitted polypropylene bi-axial geogrid. Each block is tapered, beveled and interlocked and includes connections that prevent lateral displacement of the blocks within the mats when they are lifted and placed. Blocks shall have a minimum weight of three lbs. per block and placed no further than two inches apart. Concrete mats with construction of 5000 PSI concrete blocks.