Tubo TerraArch™ is a prefabricated reinforced concrete tube with vaulted sections that has particular designs for small cross structures like road sewer, culverts, any other utility pass, etc. To install the Tubo TerraArch™, a trench is excavated at the installation location as per the dimensions of the Tubo TerraArch™. Waterproof structures can be built using these segmental units.