Czech Republic’s longest tunnel broken through

The breakthrough of the Czech Republic´s longest railway tunnel was celebrated on June 11.

CZECH REPUBLIC: The breakthrough of the Czech Republic's longest railway tunnel was celebrated on June 11, when the 115 m long Herrenknecht Type S-799 tunnel boring machine Viktorie broke through the southern bore of the 4·15 km twin-bore tunnel under the Chlum and Homolka hills east of Plzeň after 16 ...

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