city district heating pipeline reparation and reconstruction parallel with the street with construction machinery and safety road

asphalt barrier building bury business canal circle city closeup completion construction danger deep diameter dirt dirty distribution district ditch drain energy engineering equipment excavating excellence extracting facilities fence field gas ground hardware hatch heating hole home hot industrial industry infrastructure installation insulated insulation large line long new occupation old orange outdoor parallel pipe pipeline plastic plumbing polymer power reconstruction repair reparation replace replacement safety sand season sewer sewerage shaft site street structure supply system town trench underground urban water work