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Liberec interurban line 11, the last narrow-gauge tram line in Czechia, gonna be converted to standard gauge. Construction works 07/2021 - 2022.
The urban lines number 2 and 3 in Liberec have been already converted during 1990's and 2000's.
A part of the urban line is in 1000/1435 double gauge to allow rides with historical vehicles.