The use of ash obtained from the incineration of sewage sludge in the construction of logging roads makes it possible to reduce the cost of pavement and increase the service life of logging roads, which will make it possible to build logging roads for small logging enterprises. An increase in the network of logging roads will allow more efficient wood harvesting at a lower cost. Also, due to the cheapening of forest roads, it will be possible to develop remote forest resources. Every year the problem of waste disposal becomes more and more urgent. The number of polygons is increasing, the area occupied by such objects is increasing every year, and this area is already reaching catastrophic proportions.