"maxdraught"=>"2.6","river:waterway_distance"=>"3.61","seamark:gate:category"=>"flood_barrage","seamark:gate:clearance_width"=>"10.6","seamark:information"=>"Normally open for shipping","seamark:name"=>"Damsluis","seamark:national_information"=>"Keersluis staat in de regel open. Schotbalkkering.","seamark:source"=>"https://www.vaarweginformatie.nl/frp/main/#/geo/detail/EXCEPT_NAV_STRUCTURE/30998","seamark:type"=>"gate"