Spunline technology includes a large family of methods used to install, maintain, and rehabilitate any underground pipes, mains, and drains with minimal excavation and disruption to the environment and general public. This process has application in a variety of fields such as water mains, electrical, phone, and cable systems, and gas pipes. Our goal is to minimize alterations and damage to the terrain. Wherever the project may be ­ under a busy interstate highway or under a delicate natural preserve ­ our minimal impact technology allows us to minimize the negative effect in both the public and the environment. Our pipe installation and rehabilitation systems include: Horizontal drilling for the installation of small diameter piping, drilling of micro tunnels, hydraulic cleaning, and drag cleaning. We use a variety of materials in the rehabilitation process including Epoxies, fiberglass, and cement-mortar. The use of modern machinery, including advanced perforation drills and video inspections, has allowed us to develop a low impact system that is both effective and affordable. Since 1987 HEICOVEN has been working in the reconditioning and maintenance of water mains of large diameter (>60 cms). To this end our work has focused on the rehabilitation of street drains, most of which were near collapse. The rehabilitation process included cleaning, rebuilding and reinforcing the tubular structure, and finally the lining of the interior walls with cement-mortar. All of this is done without disrupting automotive or pedestrian traffic. To date we have performed this technique in more than 700 drains throughout the country and have completed more advanced projects repairing collapsed drainage systems in many urban areas. Among our most challenging works was the complete rehabilitation of the Northern section of the underground water system of the city of Caracas. More than 1800 mts of large diameter pipes (1.80m), located under one of the most transited areas of Caracas underwent our cement-mortar lining technique. We completed this work with minimal impact to the public and the environment. Advantages of our System: - No automotive transit disruptions - Minimal environmental impact - No need for building and coordinating detours - No limits on excavation depths - Reduced construction times - Utilization and rehabilitation of existing structures - Possible increase in pipe diameter - Excellent preventive method - Reduced costs