 They are listed as heritage technology sites, part of the "Old Bydgoszcz canal natural park" on Nakielska street.Locks on the section of the Old Bydgoszcz canal

Two locks of the Old Canal have been demolished in 1970 ("Śluza II Św.Trójcy" and "Śluza III Grunwaldzka"), during the extension works of western end of Marshal Ferdinand Foch Street.