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Kramer Highway Tunnel in Germany
12/2019–09/2023
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Spitzenberg Tunnel, A44 Highway in Germany
02/2017–12/2021
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Herrschaftsbuck Tunnel, A98 Highway in Germany
04/2017–10/2020
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Underground Utility Tunnel Hlávkův Bridge in Prague
09/2016–12/2018
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Exploration Gallery for Radlice Tunnel in Prague
04/2014–03/2018
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Reconstruction of Alter Kaiser-Wilhelm Railway Tunnel in Germany
04/2014–02/2018
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Bancarevo Tunnel, E 80 Highway, Section Prosek–Crvena Reka in Serbia
03/2012–03/2017
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Railway Line Upgrade, Section Trutnov – Teplice nad Metují
08/2015–12/2016
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Královopolský Tunnel in Brno
05/2006–08/2012
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Janov Water Reservoir, Enhancement of Stability and Safety of Dam
09/2011–06/2013