Tubo TechSpan® 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 TechSpan®, a trench is excavated at the installation location as per the dimensions of the Tubo TechSpan®. The trench is freed of any compressible materials and then levelled and proof rolled. The precast units are positioned from the top inside the excavated trench. Waterproof structures can be built using these segmental units. The installation is quality ensured and rapid.