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Name & Description: Grays Reef Passage, MI- Section Included: East channel, 3,000 feet wide and about 2 miles long. Controlling and project depths: 25 feet.
Time: CY2009
Traffic Type: Domestic
Measure: Trips (#)
  All Vessel Types Self-Propelled Dry Cargo Self-Propelled Tanker Self-Propelled Towboat Non-Self Propelled Dry Cargo Non-Self Propelled Tanker Liquid barge
  All Traffic Directions Upbound Downbound All Traffic Directions Upbound Downbound All Traffic Directions Upbound Downbound All Traffic Directions Upbound Downbound All Traffic Directions Upbound Downbound All Traffic Directions Upbound Downbound
All Drafts 1,180 681 499 596 385 211 0 0 0 260 124 136 256 128 128 68 44 24
    0-5 ft. 15 4 11 0 0 0 0 0 0 0 0 0 15 4 11 0 0 0
    6-9 ft. 30 21 9 16 15 1 0 0 0 11 4 7 2 2 0 1 0 1
    10-12 ft. 41 29 12 3 2 1 0 0 0 18 12 6 15 14 1 5 1 4
    13-14 ft. 34 16 18 1 0 1 0 0 0 32 16 16 0 0 0 1 0 1
    15-17 ft. 228 120 108 50 37 13 0 0 0 121 46 75 10 4 6 47 33 14
    18-20 ft. 355 259 96 233 182 51 0 0 0 37 28 9 71 39 32 14 10 4
    21-23 ft. 291 163 128 205 126 79 0 0 0 15 9 6 71 28 43 0 0 0
    24-26 ft. 186 69 117 88 23 65 0 0 0 26 9 17 72 37 35 0 0 0
    27-29 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    30-32 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    33-35 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    36-38 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    39-40 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    41 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    42 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    43 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    44 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    45 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    46 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    47 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    48 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    49 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    50 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    51 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    52 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    53 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    54 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    55 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    56 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    57 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    58 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    59 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    60 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    >60 ft. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0