Duluth-Superior Harbor Marine Traffic

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Duluth Harbor Marine Channel

Port Operations	5	156.25
Safety Navigation, Rescue	6	156.30
Commercial, Business Traffic	8	156.40
Harbor Emergency	9	156.45
Lift Bridge	10	156.50
Bridges, locks & dams	12	156.60
Ship-to-Ship	13	156.65
Bridges, locks & dams	14	156.70
General - Safety	16	156.80
Harbor Tugs	18	156.90
Bridges, locks & dams	20	157.00
Coast Guard	22	157.10
General use, & Great Lakes WX	26	157.30