{"version":"1.0","type":"link","title":"Control lock - Newikis","description":"A control lock, guard lock or stop lock differs from a normal canal lock in that its primary purpose is controlling variances in water level rather than raising or lowering vessels. A control lock may also be known as a tide lock where it is used to control seawater entering into a body of fresh…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}