FIELD: construction; laying of mains. SUBSTANCE: according to proposed method, trench with pipeline laid in trench is overlapped by bridge made by placing weighting member - polymeric container ballasting device or group of weighting members with filling of containers by soil or filling trench with soil on section of mounting of polymeric container ballasting device on pipeline. When building crossing over water course in swamp or gully, trenches are dug out in banks of water course at sides crossing and soil-filled water permeable containers are installed vertically in said trenches. One-or two-layer log flooring is made with resting onto soil-filled water permeable containers, and side log flooring is covered by industrial fabric panels together with near bank sections. And layer of sand of designed thickness is placed over industrial fabric panels. When building crossing over obstacle, namely, over surface or elevated pipeline, bridge is built overlapping the obstacle with provision of approach and exit ramps. For this purpose supports -solid-filled water permeable containers are placed on ground surface at sides of obstacle. Log flooring is placed with resting on said supports. Log flooring is lined with industrial fabric panels and panels are covered with layer of sand soil of designed thickness. EFFECT: reduced time taken for laying of pipeline. 4 cl, 3 dwg
