descriptopm

"seamark:gate:category"=>"flood_barrage","seamark:gate:clearance_height"=>"999","seamark:gate:clearance_width"=>"9","seamark:type"=>"gate"

"seamark:gate:category"=>"lock","seamark:gate:clearance_height"=>"999","seamark:gate:clearance_width"=>"12","seamark:information"=>"Normally lock doors are open. Operational when current > 0.75 m/sec","seamark:name"=>"Manderssluis","seamark:type"=>"gate"

"seamark:gate:category"=>"lock","seamark:gate:clearance_height"=>"999","seamark:gate:clearance_width"=>"12","seamark:information"=>"Normally lock doors are open. Operational when current > 0.75 m/sec","seamark:name"=>"Manderssluis","seamark:type"=>"gate"