excavation for laying utility networks, sewer pipes, electric cables or gas connections to new buildings. digging heavily scattere

artillery barrage battery building buildings cable cables connection connections construction deep development digging dirt ditch effort electric electricity empty engineering excavating excavation freeze gas heavily heavy house infantry laying line narrow network networks new obstacle pile pipe pipes power propose protect protection quarter residential rocky sandstone scattere scattered sewer shrapnel site soil stone subsoil town trench ukraine utility war warfare working yellow