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Motorway tunnelling only started in the Czech Republic after the political changes in Europe in 1989 with the objective of rapidly integrating the then small national motorway network into the European network. In reality, this meant the construction of Motorway D5 to the West (Prague-Pilsen-Nuremberg), Motorway D8 to the North (Prague-Dresden), Motorway D3 to the South (Prague-Budweis-Linz), Motorway D1 to the North-East (Brno/Brün-Ostrava-Katowice), Motorway R52 to the South (Brno/Brün-Vienna) and Motorway R48 (Brno/Brün-Olomouc/Olmütz-Krakow). In order to improving conditions for the rapidly growing traffic around the Czech capital Prague, and to eliminate transit traffic through Prague, an outer motorway was proposed, the Prague City Ring Road R1. In the mean time some of these ambitious plans have been realized and several motorway tunnels constructed in the last decade. The paper starts with a general overview of the motorway tunnels, their parameters and features. The rest is focused on details of the design and construction of the Lochkov Tunnel on the Prague City Ring Road.

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