www.antena3.ro/externe/cel-mai-lung-tunel-rutier-s

Norway is constructing the world's longest and deepest underwater road tunnel, Rogfast, which will significantly reduce travel time between major cities. The 27-kilometer tunnel will reach depths of 392 meters below sea level and is part of a larger project to modernize the E39 coastal highway. Construction began in 2018 but faced delays due to cost overruns, resuming in 2021 with an expected completion in 2033. The tunnel will eliminate the need for ferries, cutting travel time between Bergen and Stavanger by about 40 minutes. Advanced technology ensures precise construction, while challenges include water infiltration and air quality management. The project aims to enhance regional connectivity and economic growth.