Catalog of shoals by date
Catalog of shoals in the
St. Lawrence Waterway
Updated by the Navigable Waterways Management division
| Number | Date | Chart | Reference point | Center position |
Shoal location In reference to the channel limits |
Dimensions | |||
|---|---|---|---|---|---|---|---|---|---|
| Latitude | Longitude | Lenght | Width | Depth | |||||
|
Q5124/26 XHTML |
2026-06-11 | 1314 | Q68 | 46-38-55.7 | 71-54-32.1 | From 3 to 5 meters South of the North limit of the channel | 2 | 2 | 10.4 |
|
Q5122/26 XHTML |
2026-06-11 | 1314 | Q54 | 46-39-5.2 | 71-45-47.5 | From 5 to 9 meters South of the North limit of the channel | 3 | 4 | 10.5 |
|
Q5121/26 XHTML |
2026-06-11 | 1314 | Q54 | 46-39-3.5 | 71-45-43.4 | From 0 to 29 meters South of the North limit of the channel | 136 | 29 | 10.2 |
|
Q5120/26 XHTML |
2026-06-11 | 1313 | C21 | 46-24-45.5 | 72-22-46.5 | From 33 to 39 meters North of the South limit of the channel | 5 | 7 | 11.2 |
|
Q5119/26 XHTML |
2026-06-11 | 1313 | C23 | 46-24-0.7 | 72-24-4.9 | From 42 to 45 meters North of the South limit of the channel | 2 | 2 | 11.0 |
|
Q5123/26 XHTML |
2026-06-11 | 1314 | Q51 | 46-38-53.1 | 71-45-12.7 | From 0 to 8 meters South of the North limit of the channel | 8 | 8 | 10.6 |
|
Q5118/26 XHTML |
2026-06-11 | 1313 | C33 | 46-22-45.0 | 72-26-48.4 | From 24 to 27 meters North of the South limit of the channel | 2 | 3 | 11.0 |
|
Q5117/26 XHTML |
2026-06-11 | 1313 | C41 | 46-22-30.1 | 72-28-2.1 | From 7 to 17 meters South of the North limit of the channel | 108 | 10 | 11.0 |
|
Q5115/26 XHTML |
2026-06-09 | 1313 | C19 | 46-25-45.5 | 72-21-29.8 | From 63 to 65 meters South of the North limit of the channel | 2 | 2 | 11.2 |
|
Q5109/26 XHTML |
2026-05-29 | 1314 | Q84 | 46-35-56.4 | 71-59-50.6 | From 5 to 8 meters South of the North limit of the channel | 3 | 3 | 10.4 |
|
Q5107/26 XHTML |
2026-05-28 | 1313 | C17 | 46-25-55.9 | 72-20-58.2 | From 0 to 2 meters South of the North limit of the channel | 2 | 2 | 11.2 |
|
Q5098/26 XHTML |
2026-05-26 | 1313 | C52 | 46-20-25.7 | 72-32-18.5 | From 0 to 11 meters North of the South limit of the approach area | 74 | 11 | 9.3 |
|
Q5094/26 XHTML |
2026-05-26 | 1313 | C34 | 46-22-50.2 | 72-26-18.1 | From 0 to 41 meters South of the North limit of the channel | 807 | 41 | 9.0 |
|
Q5095/26 XHTML |
2026-05-26 | 1313 | C30 | 46-22-53.8 | 72-26-2.4 | From 17 to 27 meters South of the North limit of the channel | 66 | 10 | 11.1 |
|
Q5097/26 XHTML |
2026-05-26 | 1313 | C30 | 46-22-57.2 | 72-25-52.4 | From 1 to 3 meters North of the South limit of the channel | 2 | 2 | 9.9 |
|
Q5088/26 XHTML |
2026-05-22 | 1314 | D22 | 46-34-0.6 | 72-04-12.0 | From 0 to 5 meters South of the North limit of the channel | 159 | 5 | 8.3 |
|
Q5087/26 XHTML |
2026-05-22 | 1314 | D30 | 46-33-55.2 | 72-06-25.4 | From 99 to 106 meters South of the North limit of the channel | 7 | 7 | 10.5 |
|
Q5086/26 XHTML |
2026-05-22 | 1314 | D35 | 46-33-47.9 | 72-07-11.9 | From 109 to 113 meters North of the South limit of the channel | 182 | 4 | 10.5 |
|
Q5085/26 XHTML |
2026-05-20 | 1311 | M17 | 45-54-42.0 | 73-13-1.5 | From 0 to 7 meters North of the South limit of the channel | 291 | 7 | 10.1 |
|
Q5084/26 XHTML |
2026-05-20 | 1311 | M17 | 45-54-42.4 | 73-13-1.0 | From 7 to 17 meters North of the South limit of the channel | 346 | 10 | 10.8 |
|
Q5083/26 XHTML |
2026-05-20 | 1311 | M57 | 45-50-14.5 | 73-16-51.1 | From 0 to 6 meters North of the South limit of the anchorage area | 78 | 6 | 10.0 |
|
Q5082/26 XHTML |
2026-05-15 | 1317 | K115 | 47-01-10.0 | 70-46-41.4 | From 133 to 147 meters North of the South limit of the channel | 6 | 15 | 12.3 |
|
Q5080/26 XHTML |
2026-05-15 | 1317 | K116 | 47-01-58.1 | 70-46-3.9 | From 0 to 20 meters South of the North limit of the channel | 6 | 20 | 11.8 |
|
Q5079/26 XHTML |
2026-05-14 | 1317 | K104 | 47-04-35.0 | 70-43-46.1 | From 6 to 41 meters South of the North limit of the channel | 11 | 35 | 12.2 |
|
Q5078/26 XHTML |
2026-05-14 | 1317 | K104 | 47-04-32.5 | 70-43-47.0 | From 35 to 40 meters South of the North limit of the channel | 2 | 5 | 12.3 |
|
Q5077/26 XHTML |
2026-05-14 | 1317 | K119 | 47-00-26.8 | 70-47-18.9 | From 65 to 71 meters North of the South limit of the channel | 3 | 6 | 12.3 |
|
Q5076/26 XHTML |
2026-05-13 | 1312 | S63 | 46-12-22.7 | 72-49-21.1 | From 32 to 73 meters North of the South limit of the anchorage area | 164 | 40 | 8.3 |
|
Q5075/26 XHTML |
2026-05-13 | 1312 | S63 | 46-12-23.7 | 72-49-20.3 | From 80 to 109 meters North of the South limit of the anchorage area | 71 | 29 | 9.6 |
|
Q5074/26 XHTML |
2026-05-13 | 1312 | YAMB | 46-12-39.0 | 72-48-40.0 | From 143 to 145 meters North of the South limit of the anchorage area | 2 | 2 | 10.6 |
|
Q5073/26 XHTML |
2026-05-13 | 1312 | YAMB | 46-12-29.6 | 72-48-52.6 | From 0 to 13 meters North of the South limit of the anchorage area | 1194 | 13 | 7.4 |
|
Q5072/26 XHTML |
2026-05-13 | 1312 | YAMB | 46-12-30.7 | 72-48-52.3 | From 0 to 43 meters North of the South limit of the anchorage area | 1236 | 43 | 8.4 |
|
Q5071/26 XHTML |
2026-05-13 | 1312 | YAMB | 46-12-32.1 | 72-48-52.6 | From 0 to 43 meters North of the South limit of the anchorage area | 1267 | 43 | 9.2 |
|
Q5070/26 XHTML |
2026-05-13 | 1312 | YAMB | 46-12-27.4 | 72-49-8.9 | From 92 to 117 meters North of the South limit of the anchorage area | 512 | 25 | 10.0 |
|
Q5069/26 XHTML |
2026-05-13 | 1312 | YAMB | 46-12-30.7 | 72-49-2.6 | From 123 to 145 meters North of the South limit of the anchorage area | 140 | 23 | 10.6 |
|
Q5068/26 XHTML |
2026-05-13 | 1312 | S63 | 46-12-21.7 | 72-49-22.7 | From 0 to 42 meters North of the South limit of the anchorage area | 274 | 42 | 6.3 |
|
Q5065/26 XHTML |
2026-05-13 | 1312 | S63 | 46-12-24.2 | 72-49-34.8 | From 0 to 30 meters North of the South limit of the anchorage area | 265 | 30 | 6.8 |
|
Q5064/26 XHTML |
2026-05-13 | 1312 | S63 | 46-12-25.3 | 72-49-35.7 | From 29 to 52 meters North of the South limit of the anchorage area | 78 | 24 | 9.3 |
|
Q5063/26 XHTML |
2026-05-13 | 1312 | S92 | 46-10-30.6 | 72-55-15.7 | From 7 to 19 meters North of the South limit of the channel | 20 | 12 | 11.0 |
|
Q5062/26 XHTML |
2026-05-13 | 1312 | S51 | 46-12-57.7 | 72-48-41.3 | From 7 to 17 meters North of the South limit of the channel | 176 | 9 | 11.2 |
|
Q5061/26 XHTML |
2026-05-12 | 1311 | S141 | 46-03-41.6 | 73-05-12.1 | From 7 to 13 meters North of the South limit of the channel | 7 | 5 | 11.2 |
|
Q5060/26 XHTML |
2026-05-12 | 1311 | S141 | 46-03-43.1 | 73-04-54.7 | From 7 to 14 meters South of the North limit of the channel | 11 | 7 | 11.0 |
|
Q5059/26 XHTML |
2026-05-12 | 1312 | S110 | 46-07-52.0 | 72-57-25.8 | From 0 to 11 meters South of the North limit of the channel | 690 | 11 | 10.4 |
|
Q5058/26 XHTML |
2026-05-12 | 1312 | S110 | 46-07-25.4 | 72-57-37.7 | From 7 to 23 meters South of the North limit of the channel | 24 | 16 | 11.2 |
|
Q5057/26 XHTML |
2026-05-08 | 1317 | K119 | 46-59-55.4 | 70-47-45.7 | From 0 to 18 meters North of the South limit of the channel | 30 | 18 | 12.0 |
|
Q5050/26 XHTML |
2026-05-08 | 1310 | M191 | 45-32-11.2 | 73-31-51.6 | From 0 to 9 meters North of the South limit of the channel | 190 | 9 | 10.8 |
|
Q5056/26 XHTML |
2026-05-07 | 1310 | PATG | 45-37-50.5 | 73-29-3.9 | From 0 to 8 meters North of the South limit of the anchorage area | 54 | 8 | 10.9 |
|
Q5054/26 XHTML |
2026-05-06 | 1310 | MEB | 45-36-37.9 | 73-29-54.4 | From 0 to 6 meters North of the South limit of the anchorage area | 16 | 6 | 8.8 |
|
Q5055/26 XHTML |
2026-05-06 | 1310 | MEB | 45-36-39.4 | 73-29-50.4 | From 0 to 7 meters North of the South limit of the anchorage area | 44 | 7 | 8.6 |
|
Q5053/26 XHTML |
2026-05-06 | 1310 | M163 | 45-36-37.1 | 73-29-57.8 | From 0 to 8 meters North of the South limit of the anchorage area | 94 | 8 | 8.5 |
|
Q5052/26 XHTML |
2026-05-06 | 1310 | M187 | 45-33-2.9 | 73-31-7.2 | From 19 to 21 meters North of the South limit of the channel | 2 | 2 | 10.9 |
|
Q5051/26 XHTML |
2026-05-06 | 1310 | M189 | 45-32-16.5 | 73-31-47.1 | From 2 to 8 meters South of the North limit of the channel | 45 | 6 | 10.9 |
|
Q5049/26 XHTML |
2026-05-06 | 1310 | LGLA | 45-33-30.2 | 73-30-49.4 | From 13 to 15 meters North of the South limit of the channel | 2 | 2 | 10.8 |
|
Q5048/26 XHTML |
2026-05-06 | 1310 | LGLA | 45-33-33.7 | 73-30-47.3 | From 11 to 13 meters North of the South limit of the channel | 2 | 3 | 10.9 |
|
Q5047/26 XHTML |
2026-05-05 | 1313 | C28 | 46-23-11.5 | 72-25-45.9 | From 0 to 14 meters North of the South limit of the channel | 281 | 14 | 9.5 |
|
Q5040/26 XHTML |
2026-04-30 | 1313 | C36 | 46-22-25.5 | 72-28-17.4 | From 0 to 24 meters South of the North limit of the channel | 352 | 24 | 10.7 |
|
Q5039/26 XHTML |
2026-04-30 | 1313 | C43 | 46-22-14.8 | 72-28-48.8 | From 6 to 19 meters North of the South limit of the channel | 33 | 12 | 10.9 |
|
Q5038/26 XHTML |
2026-04-30 | 1313 | C46 | 46-22-17.8 | 72-28-40.4 | From 0 to 15 meters South of the North limit of the channel | 179 | 15 | 10.0 |
|
Q5023/26 XHTML |
2026-04-28 | 1313 | C77 | 46-16-45.7 | 72-36-30.5 | From 5 to 8 meters North of the South limit of the channel | 2 | 2 | 11.1 |
|
Q5024/26 XHTML |
2026-04-28 | 1313 | C77 | 46-16-42.4 | 72-36-36.6 | From 2 to 7 meters North of the South limit of the channel | 33 | 5 | 10.9 |
|
Q5022/26 XHTML |
2026-04-24 | 1314 | D59 | 46-31-23.6 | 72-12-5.5 | From 0 to 15 meters North of the South limit of the channel | 51 | 15 | 9.9 |
|
Q5021/26 XHTML |
2026-04-24 | 1313 | D71 | 46-30-2.2 | 72-13-43.0 | From 0 to 16 meters North of the South limit of the channel | 62 | 16 | 9.3 |
|
Q5020/26 XHTML |
2026-04-23 | 1312 | S8 | 46-15-37.1 | 72-39-16.2 | From 20 to 23 meters North of the South limit of the channel | 2 | 2 | 11.1 |
|
Q5011/26 XHTML |
2026-04-23 | 1312 | S13 | 46-15-43.6 | 72-40-31.8 | From 12 to 19 meters North of the South limit of the channel | 10 | 6 | 11.2 |
|
Q5013/26 XHTML |
2026-04-23 | 1312 | S22 | 46-15-53.9 | 72-42-4.1 | From 0 to 29 meters South of the North limit of the channel | 167 | 29 | 10.1 |
|
Q5019/26 XHTML |
2026-04-23 | 1313 | BATA | 46-30-7.6 | 72-14-7.9 | From 0 to 120 meters South of the North limit of the anchorage area | 1729 | 120 | 8.3 |
|
Q5018/26 XHTML |
2026-04-23 | 1313 | BATB | 46-30-7.9 | 72-14-2.6 | From 0 to 88 meters South of the North limit of the anchorage area | 1810 | 88 | 8.8 |
|
Q5012/26 XHTML |
2026-04-23 | 1312 | S13 | 46-15-43.1 | 72-40-21.5 | From 50 to 52 meters North of the South limit of the channel | 2 | 2 | 11.1 |
|
Q5017/26 XHTML |
2026-04-23 | 1313 | BATA | 46-30-23.0 | 72-13-52.8 | From 0 to 31 meters South of the North limit of the anchorage area | 876 | 31 | 9.3 |
|
Q5016/26 XHTML |
2026-04-23 | 1313 | BATA | 46-30-28.8 | 72-13-47.6 | From 0 to 73 meters South of the North limit of the anchorage area | 584 | 73 | 9.5 |
|
Q5015/26 XHTML |
2026-04-23 | 1313 | BATA | 46-30-28.4 | 72-13-44.8 | From 11 to 61 meters North of the South limit of the anchorage area | 385 | 50 | 10.0 |
|
Q5010/26 XHTML |
2026-04-23 | 1312 | S17 | 46-15-45.2 | 72-41-7.4 | From 6 to 15 meters North of the South limit of the channel | 26 | 9 | 10.6 |
|
Q5009/26 XHTML |
2026-04-22 | 1312 | S27 | 46-15-7.7 | 72-43-37.6 | From 0 to 12 meters North of the South limit of the channel | 1795 | 12 | 10.4 |
|
Q5008/26 XHTML |
2026-04-22 | 1312 | S27 | 46-15-8.1 | 72-43-37.7 | From 12 to 26 meters North of the South limit of the channel | 1778 | 14 | 11.0 |
|
Q5007/26 XHTML |
2026-04-22 | 1312 | S54 | 46-13-8.1 | 72-48-13.2 | From 0 to 14 meters South of the North limit of the channel | 33 | 14 | 10.6 |
|
Q5004/26 XHTML |
2026-04-22 | 1313 | C23 | 46-24-15.0 | 72-22-59.7 | From 0 to 24 meters North of the South limit of the anchorage area | 48 | 24 | 10.0 |
|
Q5003/26 XHTML |
2026-04-22 | 1313 | C23 | 46-24-16.6 | 72-23-1.0 | From 41 to 88 meters North of the South limit of the anchorage area | 10 | 47 | 10.6 |
|
Q5001/26 XHTML |
2026-04-22 | 1313 | C23 | 46-24-21.4 | 72-23-1.9 | From 156 to 225 meters North of the South limit of the anchorage area | 8 | 70 | 10.6 |
|
Q5006/26 XHTML |
2026-04-22 | 1313 | C23 | 46-24-14.3 | 72-23-4.8 | From 0 to 8 meters North of the South limit of the anchorage area | 175 | 8 | 7.7 |
|
Q5005/26 XHTML |
2026-04-22 | 1313 | C23 | 46-24-14.5 | 72-23-2.3 | From 0 to 20 meters North of the South limit of the anchorage area | 107 | 20 | 8.7 |
|
Q5002/26 XHTML |
2026-04-22 | 1313 | C23 | 46-24-20.3 | 72-22-58.1 | From 113 to 116 meters North of the South limit of the anchorage area | 2 | 2 | 10.5 |
|
Q5158/25 XHTML |
2025-07-04 | 1314 | Q77 | 46-37-17.7 | 71-56-56.7 | From 0 to 8 meters North of the South limit of the channel | 45 | 8 | 10.1 |
|
Q5157/25 XHTML |
2025-07-04 | 1314 | Q77 | 46-37-10.1 | 71-57-11.7 | From 0 to 22 meters South of the North limit of the channel | 631 | 22 | 8.2 |
Measurements are given in meters
Water depths are given in reference to chart datum
Last data update: 2026-06-11 19:03
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