Construction of L=1km-long closed pipeline serving the agricultural fields of Gushgara village (PK30 - PK 40) Excavation of soil by moving it to a distance of up to 10 m, power of the bulldozer: 96 (130) kW (a.g.), 2nd group of soil (cutting the vegetation layer) Construction of profiled temporary dirt roads when works are performed at the zero level, the width of the soil cover is 7.5 m. for rock categories: 1 (4.5 m) Excavation of soil by throwing it aside with excavators of the "reverse bucket" or "dragline" type with a bucket capacity of 0.65 (0.5-1) m3, soil group: 3 Manual excavation of soil in sloping trenches with a depth of up to 2 m without fasteners, soil group: 3 Soil up to 10 m remote excavation, bulldozer power: 96 (130) kW (hp), soil group 3 (construction site clearing) Manual planning of the bottom and slopes of excavated canals, soil group: 3 (trench bottom)