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        Summary 
        
         
          
           | Description | 
           
             English: An icon containing a lock and a weir in parallel, the weir to the left of the diagram, for use in canal maps 
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           | Date | 
           30 September 2011 | 
          
          
           | Source | 
           Own work | 
          
          
           | Author | 
            Martinvl | 
          
         
         
        Licensing 
        
         
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           I, the copyright holder of this work, hereby publish it under the following license:
           
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