Details of box of contraction and transverse passage of sanitation paving project that includes a detailed view of det. structural in wall of containment, mortar f'c = 210 kg./cm2, technical specifications, containment wall plant, sewer plant of cross, fluvial water supply plant, detail of alero, cross sewer structure, alero plant, det. connection of fluvial water sum, anti-pollution sand bed, connection domiciliaries to sewer collector, sumidero connection plant, section of connection registration box, section of connection box deumidero, cast iron cover ø 5/8 "with certification, photo view of cast iron cap and much more of structure details.
