At present time, private enterprise “Borovik” manufactures buoyant, nonself-propelled, electric, diesel-electric dredging machines for extraction and transportation of nonmetalliferous materials (sand, gravel) from irrigated pits, besides it can be used for laying channels, cleaning not deep ponds. Technical characteristics can be changed according to client’s requirements, namely: to change the depth of mining or different kinds of soil pumps can be installed, etc.