Route 5 and Route 78 twin-tunnel project in Santiago

project in planning

The project involves the construction of the Bitúnel, an underground road infrastructure solution designed to improve connectivity between Route 78 and Route 5 in the Metropolitan Region of Santiago, Chile. It includes the development of two parallel, bidirectional tunnels built using mining-style excavation methods to ease traffic congestion while minimizing surface disruption. By prioritizing a subterranean alignment, the project seeks to preserve urban spaces, reduce environmental and social impacts, and enhance the quality of life for surrounding communities, while incorporating modern safety systems, intelligent transport technologies, and surface-level urban integration features such as new public and green spaces.