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 | |||||
|
Q5212/26 XHTML |
2026-09-15 | 1312 | S110 | 46-07-26.2 | 72-57-37.3 | From 4 to 23 meters South of the North limit of the channel | 18 | 19 | 11.2 |
|
Q5211/26 XHTML |
2026-09-15 | 1312 | S110 | 46-07-50.7 | 72-57-26.2 | From 0 to 12 meters South of the North limit of the channel | 599 | 12 | 9.9 |
|
Q5210/26 XHTML |
2026-09-10 | 1312 | S54 | 46-13-7.9 | 72-48-13.2 | From 7 to 13 meters South of the North limit of the channel | 8 | 6 | 11.1 |
|
Q5209/26 XHTML |
2026-09-09 | 1312 | S27 | 46-15-32.3 | 72-42-47.7 | From 93 to 97 meters North of the South limit of the channel | 3 | 4 | 11.2 |
|
Q5208/26 XHTML |
2026-09-09 | 1312 | S27 | 46-15-27.1 | 72-42-58.8 | From 41 to 50 meters North of the South limit of the channel | 74 | 9 | 11.1 |
|
Q5205/26 XHTML |
2026-09-03 | 1312 | S27 | 46-15-25.2 | 72-43-2.4 | From 31 to 42 meters North of the South limit of the channel | 5 | 10 | 11.2 |
|
Q5204/26 XHTML |
2026-09-03 | 1312 | S27 | 46-15-20.4 | 72-43-12.6 | From 32 to 34 meters North of the South limit of the channel | 2 | 2 | 11.2 |
|
Q5203/26 XHTML |
2026-09-03 | 1312 | S27 | 46-15-20.1 | 72-43-14.9 | From 51 to 55 meters North of the South limit of the channel | 3 | 4 | 11.2 |
|
Q5206/26 XHTML |
2026-09-03 | 1312 | S27 | 46-15-7.9 | 72-43-37.5 | From 7 to 17 meters North of the South limit of the channel | 1801 | 10 | 10.9 |
|
Q5207/26 XHTML |
2026-09-03 | 1312 | S27 | 46-15-9.3 | 72-43-33.8 | From 0 to 7 meters North of the South limit of the channel | 1617 | 7 | 10.4 |
|
Q5202/26 XHTML |
2026-08-31 | 1313 | C41 | 46-22-29.9 | 72-28-2.9 | From 7 to 19 meters South of the North limit of the channel | 168 | 12 | 11.0 |
|
Q5201/26 XHTML |
2026-08-31 | 1313 | C41 | 46-22-26.1 | 72-28-16.2 | From 5 to 21 meters South of the North limit of the channel | 277 | 16 | 10.7 |
|
Q5200/26 XHTML |
2026-08-31 | 1313 | C43 | 46-22-17.7 | 72-28-40.4 | From 0 to 8 meters South of the North limit of the channel | 179 | 8 | 10.0 |
|
Q5199/26 XHTML |
2026-08-31 | 1313 | C43 | 46-22-18.1 | 72-28-40.3 | From 8 to 20 meters South of the North limit of the channel | 165 | 12 | 10.7 |
|
Q5198/26 XHTML |
2026-08-31 | 1313 | C43 | 46-22-14.7 | 72-28-48.8 | From 7 to 17 meters North of the South limit of the channel | 31 | 10 | 11.0 |
|
Q5197/26 XHTML |
2026-08-28 | 1314 | Q55 | 46-39-46.1 | 71-48-7.1 | From 0 to 33 meters North of the South limit of the channel | 32 | 33 | 10.3 |
|
Q5196/26 XHTML |
2026-08-28 | 1314 | Q50 | 46-38-23.2 | 71-44-12.1 | From 0 to 6 meters North of the South limit of the channel | 407 | 6 | 10.1 |
|
Q5195/26 XHTML |
2026-08-28 | 1314 | Q54 | 46-39-4.1 | 71-45-45.2 | From 0 to 33 meters South of the North limit of the channel | 405 | 33 | 10.1 |
|
Q5194/26 XHTML |
2026-08-28 | 1314 | Q54 | 46-39-3.8 | 71-45-50.6 | From 72 to 78 meters South of the North limit of the channel | 5 | 6 | 10.6 |
|
Q5193/26 XHTML |
2026-08-28 | 1314 | Q54 | 46-39-12.5 | 71-46-16.9 | From 82 to 99 meters South of the North limit of the channel | 11 | 17 | 10.4 |
|
Q5192/26 XHTML |
2026-08-27 | 1313 | C34 | 46-22-49.2 | 72-26-22.8 | From 7 to 23 meters South of the North limit of the channel | 519 | 16 | 9.4 |
|
Q5191/26 XHTML |
2026-08-27 | 1313 | C34 | 46-22-48.6 | 72-26-23.8 | From 0 to 9 meters South of the North limit of the channel | 547 | 9 | 8.2 |
|
Q5189/26 XHTML |
2026-08-27 | 1313 | C34 | 46-22-48.6 | 72-26-28.6 | From 25 to 32 meters South of the North limit of the channel | 104 | 7 | 11.2 |
|
Q5188/26 XHTML |
2026-08-27 | 1313 | C30 | 46-23-0.3 | 72-26-13.2 | From 0 to 2 meters North of the South limit of the channel | 2 | 2 | 11.2 |
|
Q5187/26 XHTML |
2026-08-27 | 1314 | Q53 | 46-39-11.8 | 71-46-27.7 | From 24 to 40 meters North of the South limit of the channel | 13 | 15 | 10.5 |
|
Q5186/26 XHTML |
2026-08-27 | 1314 | Q53 | 46-39-14.7 | 71-46-28.4 | From 94 to 111 meters North of the South limit of the channel | 11 | 17 | 10.3 |
|
Q5185/26 XHTML |
2026-08-27 | 1314 | Q54 | 46-39-16.0 | 71-46-27.9 | From 95 to 107 meters South of the North limit of the channel | 13 | 12 | 10.4 |
|
Q5184/26 XHTML |
2026-08-27 | 1314 | Q54 | 46-39-16.0 | 71-46-17.9 | From 3 to 6 meters South of the North limit of the channel | 2 | 3 | 10.6 |
|
Q5183/26 XHTML |
2026-08-27 | 1314 | Q54 | 46-39-20.5 | 71-46-33.7 | From 29 to 33 meters South of the North limit of the channel | 5 | 3 | 10.6 |
|
Q5181/26 XHTML |
2026-08-26 | 1313 | C20 | 46-24-33.4 | 72-23-19.4 | From 38 to 58 meters South of the North limit of the channel | 10 | 20 | 11.1 |
|
Q5180/26 XHTML |
2026-08-26 | 1313 | C21 | 46-24-42.6 | 72-22-52.3 | From 35 to 56 meters North of the South limit of the channel | 14 | 21 | 10.9 |
|
Q5182/26 XHTML |
2026-08-26 | 1313 | C20 | 46-24-40.1 | 72-23-10.4 | From 7 to 18 meters South of the North limit of the channel | 10 | 10 | 11.0 |
|
Q5176/26 XHTML |
2026-08-19 | 1312 | S87 | 46-10-35.2 | 72-55-9.3 | From 7 to 21 meters North of the South limit of the channel | 22 | 14 | 10.4 |
|
Q5175/26 XHTML |
2026-08-19 | 1312 | S87 | 46-10-31.4 | 72-55-15.0 | From 7 to 30 meters North of the South limit of the channel | 31 | 24 | 10.7 |
|
Q5174/26 XHTML |
2026-08-14 | 1317 | K119 | 47-00-27.5 | 70-47-17.7 | From 58 to 60 meters North of the South limit of the channel | 2 | 2 | 12.4 |
|
Q5173/26 XHTML |
2026-08-13 | 1317 | K116 | 47-01-58.0 | 70-46-4.3 | From 0 to 11 meters South of the North limit of the channel | 6 | 11 | 12.2 |
|
Q5172/26 XHTML |
2026-08-13 | 1317 | K115 | 47-01-54.7 | 70-45-51.5 | From 9 to 25 meters North of the South limit of the channel | 8 | 16 | 12.2 |
|
Q5171/26 XHTML |
2026-08-13 | 1317 | K115 | 47-01-51.3 | 70-45-57.7 | From 68 to 74 meters North of the South limit of the channel | 2 | 6 | 12.4 |
|
Q5170/26 XHTML |
2026-08-13 | 1317 | K115 | 47-01-41.0 | 70-46-8.7 | From 88 to 92 meters North of the South limit of the channel | 2 | 4 | 12.4 |
|
Q5169/26 XHTML |
2026-08-13 | 1317 | K115 | 47-01-2.3 | 70-46-42.3 | From 19 to 33 meters North of the South limit of the channel | 6 | 14 | 12.3 |
|
Q5168/26 XHTML |
2026-08-13 | 1317 | K115 | 47-00-50.2 | 70-46-52.7 | From 0 to 7 meters North of the South limit of the channel | 6 | 7 | 12.4 |
|
Q5167/26 XHTML |
2026-08-11 | 1311 | S141 | 46-03-43.6 | 73-04-48.0 | From 7 to 24 meters South of the North limit of the channel | 223 | 17 | 10.9 |
|
Q5166/26 XHTML |
2026-08-11 | 1311 | S146 | 46-03-41.0 | 73-05-14.7 | From 20 to 22 meters South of the North limit of the channel | 2 | 2 | 11.2 |
|
Q5165/26 XHTML |
2026-08-05 | 1313 | C28 | 46-23-11.4 | 72-25-46.1 | From 0 to 16 meters North of the South limit of the channel | 305 | 16 | 9.9 |
|
Q5154/26 XHTML |
2026-07-29 | 1314 | Q74 | 46-37-52.5 | 71-55-47.6 | From 3 to 5 meters North of the South limit of the channel | 10 | 2 | 10.5 |
|
Q5152/26 XHTML |
2026-07-28 | 1313 | D71 | 46-30-2.4 | 72-13-42.9 | From 0 to 16 meters North of the South limit of the channel | 49 | 16 | 9.3 |
|
Q5151/26 XHTML |
2026-07-28 | 1314 | D30 | 46-33-55.1 | 72-06-25.2 | From 101 to 106 meters South of the North limit of the channel | 16 | 5 | 10.5 |
|
Q5147/26 XHTML |
2026-07-17 | 1310 | M189 | 45-32-13.5 | 73-31-49.7 | From 4 to 6 meters North of the South limit of the channel | 2 | 2 | 10.9 |
|
Q5146/26 XHTML |
2026-07-17 | 1310 | M191 | 45-32-8.9 | 73-31-53.7 | From 0 to 12 meters North of the South limit of the channel | 17 | 12 | 10.3 |
|
Q5145/26 XHTML |
2026-07-17 | 1317 | K104 | 47-04-39.5 | 70-43-43.8 | From 7 to 19 meters South of the North limit of the channel | 142 | 12 | 12.3 |
|
Q5144/26 XHTML |
2026-07-15 | 1317 | K104 | 47-04-33.7 | 70-43-46.9 | From 0 to 51 meters South of the North limit of the channel | 102 | 51 | 11.8 |
|
Q5143/26 XHTML |
2026-07-03 | 1311 | S146 | 46-03-41.1 | 73-05-15.8 | From 13 to 17 meters South of the North limit of the channel | 3 | 5 | 11.2 |
|
Q5126/26 XHTML |
2026-06-17 | 1312 | S22 | 46-15-53.4 | 72-42-5.2 | From 0 to 23 meters North of the South limit of the channel | 221 | 23 | 10.1 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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: 2026-09-15 18:36
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