Riga Metropolitain geological analysis

In the middle of the 1970s in Riga, the capital of Latvia, a geological exploration for a subway project was carried out—ten years later it was stopped. In the period between 1979 and 1988 hundreds of geological and hydrogeological wells were made with a depth of exploration reaching 50 meters. A large amount of research material is still available at the State Geology Fund today providing knowledge of Riga’s geology up to the present day such as the “Report on the geological exploration of metropolitan of Riga – technical project” exceeding 1000 pages and with close to 200 graphic attachments, as well as overviews of seismic and ultrasound research in Riga’s subway route.