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 | |||||
|
Q5135/25 XHTML |
2025-06-13 | 1314 | D22 | 46-34-0.4 | 72-04-13.2 | From 0 to 5 meters South of the North limit of the channel | 107 | 5 | 10.5 |
|
Q5134/25 XHTML |
2025-06-13 | 1314 | D30 | 46-33-56.7 | 72-05-56.3 | From 0 to 2 meters North of the South limit of the channel | 2 | 2 | 10.6 |
|
Q5133/25 XHTML |
2025-06-13 | 1314 | D35 | 46-33-47.1 | 72-07-15.2 | From 92 to 100 meters North of the South limit of the channel | 321 | 8 | 10.6 |
|
Q5132/25 XHTML |
2025-06-12 | 1312 | S13 | 46-15-41.3 | 72-40-15.4 | From 25 to 28 meters North of the South limit of the channel | 2 | 2 | 11.2 |
|
Q5131/25 XHTML |
2025-06-12 | 1312 | S13 | 46-15-43.6 | 72-40-31.8 | From 14 to 18 meters North of the South limit of the channel | 5 | 4 | 11.2 |
|
Q5130/25 XHTML |
2025-06-12 | 1312 | S17 | 46-15-45.2 | 72-41-7.5 | From 6 to 15 meters North of the South limit of the channel | 23 | 9 | 11.1 |
|
Q5129/25 XHTML |
2025-06-12 | 1312 | S27 | 46-15-25.5 | 72-42-59.4 | From 7 to 14 meters North of the South limit of the channel | 5 | 7 | 11.2 |
|
Q5128/25 XHTML |
2025-06-12 | 1317 | K135 | 46-56-0.1 | 70-51-45.4 | From 53 to 55 meters South of the North limit of the channel | 2 | 2 | 12.4 |
|
Q5127/25 XHTML |
2025-06-12 | 1317 | K135 | 46-55-52.2 | 70-51-45.3 | From 114 to 120 meters North of the South limit of the channel | 3 | 6 | 12.4 |
|
Q5126/25 XHTML |
2025-06-12 | 1317 | K136 | 46-55-34.1 | 70-52-11.6 | From 21 to 37 meters South of the North limit of the channel | 11 | 17 | 12.3 |
|
Q5125/25 XHTML |
2025-06-11 | 1314 | Q55 | 46-39-43.9 | 71-48-1.7 | From 0 to 14 meters North of the South limit of the channel | 13 | 14 | 10.5 |
|
Q5124/25 XHTML |
2025-06-11 | 1314 | Q57 | 46-39-53.9 | 71-48-30.8 | From 0 to 7 meters North of the South limit of the channel | 37 | 7 | 10.6 |
|
Q5123/25 XHTML |
2025-06-11 | 1314 | Q51 | 46-38-56.2 | 71-45-23.3 | From 19 to 24 meters South of the North limit of the channel | 4 | 5 | 10.5 |
|
Q5122/25 XHTML |
2025-06-11 | 1314 | Q50 | 46-38-23.4 | 71-44-12.3 | From 0 to 14 meters North of the South limit of the channel | 425 | 14 | 10.4 |
|
Q5120/25 XHTML |
2025-06-10 | 1313 | C23 | 46-24-34.7 | 72-23-7.1 | From 59 to 62 meters North of the South limit of the channel | 2 | 3 | 11.2 |
|
Q5121/25 XHTML |
2025-06-10 | 1313 | C21 | 46-24-57.0 | 72-22-31.0 | From 95 to 97 meters North of the South limit of the channel | 2 | 2 | 11.2 |
|
Q5112/25 XHTML |
2025-06-06 | 1317 | K131 | 46-56-50.0 | 70-50-43.8 | From 7 to 10 meters North of the South limit of the channel | 2 | 3 | 12.4 |
|
Q5110/25 XHTML |
2025-06-05 | 1313 | D67 | 46-30-33.3 | 72-13-20.6 | From 0 to 17 meters South of the North limit of the channel | 48 | 17 | 10.9 |
|
Q5109/25 XHTML |
2025-06-05 | 1313 | C30 | 46-22-53.7 | 72-26-2.2 | From 20 to 22 meters North of the South limit of the channel | 2 | 2 | 11.2 |
|
Q5107/25 XHTML |
2025-06-05 | 1313 | C33 | 46-22-49.7 | 72-26-19.9 | From 0 to 32 meters South of the North limit of the channel | 630 | 32 | 10.6 |
|
Q5108/25 XHTML |
2025-06-04 | 1313 | C34 | 46-22-51.0 | 72-26-17.2 | From 39 to 41 meters North of the South limit of the channel | 2 | 2 | 11.2 |
|
Q5105/25 XHTML |
2025-06-04 | 1313 | D68 | 46-30-33.6 | 72-13-39.1 | From 10 to 33 meters North of the South limit of the channel | 30 | 23 | 10.8 |
|
Q5092/25 XHTML |
2025-05-29 | 1317 | K115 | 47-01-7.3 | 70-46-42.9 | From 116 to 123 meters North of the South limit of the channel | 2 | 7 | 12.4 |
|
Q5088/25 XHTML |
2025-05-29 | 1313 | C41 | 46-22-27.1 | 72-28-12.6 | From 6 to 15 meters North of the South limit of the channel | 66 | 9 | 11.2 |
|
Q5087/25 XHTML |
2025-05-29 | 1313 | C41 | 46-22-24.9 | 72-28-20.0 | From 7 to 17 meters North of the South limit of the channel | 41 | 10 | 11.0 |
|
Q5086/25 XHTML |
2025-05-29 | 1313 | C43 | 46-22-14.7 | 72-28-48.9 | From 7 to 16 meters North of the South limit of the channel | 32 | 10 | 11.0 |
|
Q5082/25 XHTML |
2025-05-27 | 1313 | C23 | 46-24-17.3 | 72-23-1.5 | From 87 to 89 meters North of the South limit of the anchorage area | 3 | 2 | 10.6 |
|
Q5081/25 XHTML |
2025-05-27 | 1313 | C23 | 46-24-14.9 | 72-22-59.8 | From 0 to 21 meters North of the South limit of the anchorage area | 45 | 21 | 10.1 |
|
Q5080/25 XHTML |
2025-05-27 | 1313 | C23 | 46-24-14.5 | 72-23-4.1 | From 0 to 27 meters North of the South limit of the anchorage area | 185 | 27 | 8.7 |
|
Q5083/25 XHTML |
2025-05-27 | 1313 | C23 | 46-24-20.3 | 72-22-58.1 | From 113 to 115 meters North of the South limit of the anchorage area | 2 | 2 | 10.5 |
|
Q5078/25 XHTML |
2025-05-23 | 1317 | K104 | 47-04-34.6 | 70-43-46.7 | From 0 to 35 meters South of the North limit of the channel | 11 | 35 | 12.1 |
|
Q5077/25 XHTML |
2025-05-23 | 1317 | K104 | 47-04-44.6 | 70-43-40.5 | From 0 to 25 meters South of the North limit of the channel | 9 | 25 | 12.2 |
|
Q5076/25 XHTML |
2025-05-23 | 1317 | K104 | 47-04-31.9 | 70-43-48.7 | From 0 to 24 meters South of the North limit of the channel | 4 | 24 | 12.3 |
|
Q5079/25 XHTML |
2025-05-23 | 1317 | K104 | 47-04-28.8 | 70-43-50.7 | From 11 to 14 meters South of the North limit of the channel | 2 | 3 | 12.4 |
|
Q5075/25 XHTML |
2025-05-22 | 1312 | YAMB | 46-12-27.0 | 72-49-10.2 | From 100 to 113 meters North of the South limit of the anchorage area | 422 | 13 | 10.3 |
|
Q5074/25 XHTML |
2025-05-22 | 1312 | YAMB | 46-12-32.1 | 72-48-52.1 | From 0 to 57 meters North of the South limit of the anchorage area | 1251 | 57 | 9.0 |
|
Q5073/25 XHTML |
2025-05-22 | 1312 | YAMB | 46-12-30.8 | 72-48-50.8 | From 0 to 46 meters North of the South limit of the anchorage area | 1154 | 46 | 8.4 |
|
Q5072/25 XHTML |
2025-05-22 | 1312 | YAMB | 46-12-22.9 | 72-49-17.3 | From 0 to 28 meters South of the North limit of the anchorage area | 209 | 28 | 8.9 |
|
Q5071/25 XHTML |
2025-05-22 | 1312 | YAMB | 46-12-30.0 | 72-49-4.0 | From 124 to 133 meters North of the South limit of the anchorage area | 80 | 10 | 10.6 |
|
Q5069/25 XHTML |
2025-05-22 | 1312 | S63 | 46-12-22.3 | 72-49-19.6 | From 0 to 40 meters North of the South limit of the anchorage area | 235 | 40 | 8.3 |
|
Q5068/25 XHTML |
2025-05-22 | 1312 | S63 | 46-12-21.7 | 72-49-22.8 | From 0 to 41 meters North of the South limit of the anchorage area | 274 | 41 | 6.9 |
|
Q5067/25 XHTML |
2025-05-22 | 1312 | S63 | 46-12-25.3 | 72-49-35.7 | From 28 to 51 meters North of the South limit of the anchorage area | 78 | 24 | 9.2 |
|
Q5066/25 XHTML |
2025-05-22 | 1312 | S63 | 46-12-24.2 | 72-49-34.8 | From 0 to 29 meters North of the South limit of the anchorage area | 264 | 29 | 7.1 |
|
Q5065/25 XHTML |
2025-05-22 | 1312 | YAMB | 46-12-31.9 | 72-49-0.0 | From 139 to 145 meters North of the South limit of the anchorage area | 41 | 6 | 10.6 |
|
Q5070/25 XHTML |
2025-05-22 | 1317 | K119 | 47-00-4.4 | 70-47-37.5 | From 3 to 29 meters North of the South limit of the channel | 8 | 27 | 12.4 |
|
Q5063/25 XHTML |
2025-05-21 | 1312 | S58 | 46-12-50.7 | 72-48-47.4 | From 143 to 146 meters South of the North limit of the channel | 2 | 2 | 11.2 |
|
Q5064/25 XHTML |
2025-05-21 | 1312 | S54 | 46-13-1.2 | 72-48-30.8 | From 7 to 25 meters North of the South limit of the channel | 97 | 18 | 11.2 |
|
Q5057/25 XHTML |
2025-05-16 | 1314 | D35 | 46-33-47.0 | 72-07-16.0 | From 111 to 113 meters North of the South limit of the channel | 4 | 3 | 10.6 |
|
Q5056/25 XHTML |
2025-05-15 | 1313 | BATB | 46-30-0.5 | 72-14-11.5 | From 0 to 107 meters South of the North limit of the anchorage area | 1198 | 107 | 9.0 |
|
Q5055/25 XHTML |
2025-05-15 | 1313 | BATB | 46-29-58.2 | 72-14-7.9 | From 0 to 81 meters South of the North limit of the anchorage area | 1293 | 81 | 10.1 |
|
Q5054/25 XHTML |
2025-05-15 | 1313 | BATA | 46-30-27.6 | 72-13-56.9 | From 0 to 188 meters South of the North limit of the anchorage area | 556 | 188 | 8.5 |
|
Q5053/25 XHTML |
2025-05-15 | 1313 | BATA | 46-30-18.1 | 72-13-52.7 | From 17 to 183 meters North of the South limit of the anchorage area | 614 | 166 | 9.4 |
|
Q5052/25 XHTML |
2025-05-15 | 1313 | BATA | 46-30-32.8 | 72-13-46.1 | From 0 to 157 meters South of the North limit of the anchorage area | 290 | 157 | 9.4 |
|
Q5047/25 XHTML |
2025-05-15 | 1312 | S92 | 46-10-27.8 | 72-55-20.2 | From 14 to 31 meters North of the South limit of the channel | 16 | 17 | 11.1 |
|
Q5044/25 XHTML |
2025-05-14 | 1311 | M17 | 45-54-41.7 | 73-13-1.2 | From 7 to 14 meters North of the South limit of the channel | 248 | 7 | 11.2 |
|
Q5043/25 XHTML |
2025-05-14 | 1311 | M57 | 45-50-14.5 | 73-16-51.1 | From 0 to 6 meters North of the South limit of the anchorage area | 72 | 6 | 10.5 |
|
Q5042/25 XHTML |
2025-05-13 | 1311 | S146 | 46-03-41.3 | 73-05-11.4 | From 6 to 36 meters South of the North limit of the channel | 51 | 30 | 11.0 |
|
Q5041/25 XHTML |
2025-05-09 | 1312 | S110 | 46-07-52.1 | 72-57-25.7 | From 0 to 11 meters South of the North limit of the channel | 674 | 11 | 10.3 |
|
Q5040/25 XHTML |
2025-05-09 | 1312 | S102 | 46-09-2.3 | 72-56-45.7 | From 0 to 14 meters South of the North limit of the channel | 183 | 14 | 11.2 |
|
Q5030/25 XHTML |
2025-05-08 | 1310 | M191 | 45-32-12.2 | 73-31-50.7 | From 0 to 6 meters North of the South limit of the channel | 52 | 6 | 10.9 |
|
Q5031/25 XHTML |
2025-05-08 | 1310 | M187 | 45-33-2.9 | 73-31-7.2 | From 20 to 22 meters North of the South limit of the channel | 2 | 2 | 10.9 |
|
Q5029/25 XHTML |
2025-05-08 | 1310 | M191 | 45-32-8.9 | 73-31-53.6 | From 0 to 8 meters North of the South limit of the channel | 18 | 8 | 10.8 |
|
Q5027/25 XHTML |
2025-05-07 | 1310 | M151 | 45-38-34.2 | 73-28-52.8 | From 64 to 76 meters South of the North limit of the channel | 7 | 12 | 9.6 |
|
Q5028/25 XHTML |
2025-05-07 | 1310 | M152 | 45-38-27.4 | 73-28-59.6 | From 23 to 25 meters South of the North limit of the channel | 2 | 2 | 11.2 |
|
Q5024/25 XHTML |
2025-05-07 | 1310 | PATG | 45-37-50.5 | 73-29-3.9 | From 0 to 7 meters North of the South limit of the anchorage area | 53 | 7 | 11.0 |
|
Q5025/25 XHTML |
2025-05-07 | 1310 | M163 | 45-36-37.1 | 73-29-57.8 | From 0 to 7 meters North of the South limit of the anchorage area | 92 | 7 | 8.5 |
|
Q5026/25 XHTML |
2025-05-07 | 1310 | MEB | 45-36-39.4 | 73-29-50.4 | From 0 to 6 meters North of the South limit of the anchorage area | 45 | 6 | 8.6 |
|
Q5020/25 XHTML |
2025-05-01 | 1310 | LGLA | 45-33-33.7 | 73-30-47.3 | From 11 to 13 meters North of the South limit of the channel | 2 | 2 | 10.9 |
|
Q5019/25 XHTML |
2025-05-01 | 1310 | LGLA | 45-33-30.1 | 73-30-49.4 | From 0 to 2 meters South of the North limit of the channel | 2 | 2 | 10.9 |
|
Q5018/25 XHTML |
2025-04-30 | 1312 | S22 | 46-15-54.0 | 72-42-3.8 | From 0 to 28 meters South of the North limit of the channel | 115 | 28 | 11.0 |
|
Q5013/25 XHTML |
2025-04-29 | 1312 | S31 | 46-14-54.3 | 72-44-6.6 | From 7 to 15 meters North of the South limit of the channel | 17 | 8 | 11.1 |
|
Q5012/25 XHTML |
2025-04-29 | 1312 | S6 | 46-15-45.3 | 72-38-55.3 | From 0 to 2 meters South of the North limit of the channel | 2 | 2 | 11.1 |
|
Q5011/25 XHTML |
2025-04-29 | 1312 | S6 | 46-15-43.7 | 72-38-56.5 | From 0 to 2 meters South of the North limit of the channel | 2 | 2 | 11.2 |
|
Q5010/25 XHTML |
2025-04-29 | 1312 | S6 | 46-15-43.0 | 72-38-54.2 | From 7 to 20 meters North of the South limit of the channel | 75 | 13 | 11.1 |
|
Q5009/25 XHTML |
2025-04-24 | 1313 | C77 | 46-16-45.7 | 72-36-30.5 | From 6 to 8 meters North of the South limit of the channel | 2 | 2 | 11.0 |
|
Q5008/25 XHTML |
2025-04-24 | 1313 | C77 | 46-16-42.6 | 72-36-36.2 | From 1 to 7 meters North of the South limit of the channel | 6 | 6 | 10.9 |
|
Q5197/24 XHTML |
2024-08-23 | 1314 | Q74 | 46-37-54.3 | 71-55-44.0 | From 4 to 6 meters North of the South limit of the channel | 2 | 2 | 10.6 |
|
Q5198/24 XHTML |
2024-08-23 | 1314 | Q74 | 46-37-52.5 | 71-55-47.7 | From 3 to 5 meters North of the South limit of the channel | 9 | 3 | 10.4 |
|
Q5195/24 XHTML |
2024-08-23 | 1314 | Q77 | 46-37-17.7 | 71-56-56.7 | From 0 to 7 meters North of the South limit of the channel | 45 | 7 | 10.2 |
|
Q5196/24 XHTML |
2024-08-23 | 1314 | Q77 | 46-37-9.9 | 71-57-12.1 | From 0 to 21 meters South of the North limit of the channel | 605 | 21 | 8.2 |
|
Q5194/24 XHTML |
2024-08-23 | 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 |
|
Q5188/24 XHTML |
2024-08-22 | 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 | 10.3 |
|
Q5139/24 XHTML |
2024-06-12 | 1313 | C52 | 46-20-25.7 | 72-32-18.6 | From 0 to 13 meters North of the South limit of the approach area | 72 | 13 | 9.1 |
|
Q5138/24 XHTML |
2024-06-12 | 1313 | C52 | 46-20-30.8 | 72-31-49.8 | From 288 to 290 meters South of the North limit of the approach area | 2 | 2 | 10.5 |
Measurements are given in meters
Water depths are given in reference to chart datum
Last data update: 2025-06-13 14:43
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