Sosnówek LockSosnówek Lock - the twelfth lock on the Augustów Canal. 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