laying concrete manholes and drain pipes for stormwater system. connecting a trench drain to a concrete sewer wells

laying concrete manholes drain pipes stormwater system connecting trench sewer wells building construction site crane culverts dig dirty ditch drainage pipe excavation works excavator foundation ground grunge hole infrastructure installation job large manhole municipal pipeline pit plumbing pumping reinforced repair work replacement sanitary sewage sewerage storm underground utility water main tightness structure construct utilities