Sosnówek Lock - the twelfth lock on the Augustów Canal (from the Biebrza). It combines artificial part of the canal with a section running through the Black Hancza. Built in 1828 by Lt. Eng. Konstantin Jodko.
Location: 71.2 km channel Level difference: 2.98 m Length: 44.40 m Width: 6.10 m Gates: Wooden Year built: 1828 Construction Manager: Konstantin Jodko
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