Abstract: A temporary road is provided which includes a plurality of sets each defined by a first and second matrices which include an upper surface for supporting heavy vehicles and the like over rough or impassable terrain and a second matrices which comprises support members for the upper or first matrices. Thus, one set is laid down such that the first matrices is in a top or upper positions and cross members of the second matrices support the top member or upper matrices and thereafter a second set is positioned such that the first matrices is on the ground or in mud or the impassable surface is such that the second matrices or bottom of the second set with its spaced cross-support members interlocks with the spaced cross-support members of the first set and thereafter each set is interlocked such that the first, third, fifth et sequence provide the upper surface of the road and the second, forth and sixth et sequence sets provide the support for the upper sets.