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Strengthening of water reservoir banks

the river  Biryusa, 2 years after installation
the river Biryusa  2015 year
 
Overhaul of the dam, 2015 year
 the river Kostroma
the river Kostroma, 2011  year
the river Volga, 2011 year
the river Oka, 2010 year
the river Volga, 2009 year