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 | |||||
|
Q5308/26 XHTML |
2026-11-06 | 1312 | S87 | 46-10-32.1 | 72-55-14.0 | From 1 to 35 meters North of the South limit of the channel | 32 | 34 | 10.4 |
|
Q5304/26 XHTML |
2026-11-06 | 1313 | BATA | 46-30-29.0 | 72-13-57.8 | From 0 to 128 meters South of the North limit of the anchorage area | 355 | 128 | 7.4 |
|
Q5307/26 XHTML |
2026-11-06 | 1313 | BATB | 46-30-3.2 | 72-14-11.3 | From 0 to 63 meters South of the North limit of the anchorage area | 1315 | 63 | 8.9 |
|
Q5306/26 XHTML |
2026-11-06 | 1313 | BATB | 46-30-1.8 | 72-14-6.7 | From 0 to 152 meters South of the North limit of the anchorage area | 1409 | 152 | 9.6 |
|
Q5305/26 XHTML |
2026-11-06 | 1313 | BATA | 46-30-14.1 | 72-13-56.1 | From 106 to 153 meters North of the South limit of the anchorage area | 543 | 47 | 10.0 |
|
Q5303/26 XHTML |
2026-11-06 | 1313 | BATA | 46-30-30.5 | 72-13-50.1 | From 0 to 155 meters South of the North limit of the anchorage area | 441 | 155 | 8.9 |
|
Q5302/26 XHTML |
2026-11-06 | 1313 | D68 | 46-30-32.3 | 72-13-43.8 | From 0 to 66 meters South of the North limit of the anchorage area | 465 | 66 | 9.8 |
|
Q5301/26 XHTML |
2026-11-06 | 1313 | D67 | 46-30-38.3 | 72-13-37.1 | From 0 to 93 meters North of the South limit of the anchorage area | 144 | 93 | 10.1 |
|
Q5300/26 XHTML |
2026-11-06 | 1313 | C34 | 46-22-48.8 | 72-26-25.8 | From 18 to 20 meters North of the South limit of the channel | 2 | 2 | 11.0 |
|
Q5299/26 XHTML |
2026-11-06 | 1313 | C34 | 46-22-47.3 | 72-26-31.5 | From 0 to 6 meters South of the North limit of the channel | 202 | 6 | 9.7 |
|
Q5298/26 XHTML |
2026-11-06 | 1313 | C34 | 46-22-47.8 | 72-26-31.1 | From 5 to 30 meters South of the North limit of the channel | 189 | 26 | 10.6 |
|
Q5297/26 XHTML |
2026-10-30 | 1314 | D30 | 46-33-54.4 | 72-06-28.6 | From 102 to 136 meters South of the North limit of the channel | 146 | 34 | 10.6 |
|
Q5296/26 XHTML |
2026-10-29 | 1314 | Q56 | 46-39-40.1 | 71-47-50.1 | From 0 to 2 meters South of the North limit of the channel | 2 | 2 | 10.6 |
|
Q5295/26 XHTML |
2026-10-29 | 1314 | D35 | 46-33-46.3 | 72-07-19.1 | From 94 to 103 meters North of the South limit of the channel | 150 | 8 | 10.6 |
|
Q5294/26 XHTML |
2026-10-29 | 1314 | D36 | 46-33-48.8 | 72-07-29.1 | From 0 to 4 meters South of the North limit of the channel | 12 | 4 | 10.5 |
|
Q5266/26 XHTML |
2026-10-20 | 1312 | S110 | 46-07-51.8 | 72-57-25.8 | From 0 to 12 meters South of the North limit of the channel | 673 | 12 | 9.9 |
|
Q5249/26 XHTML |
2026-09-29 | 1313 | C41 | 46-22-25.4 | 72-28-17.1 | From 0 to 7 meters South of the North limit of the channel | 231 | 7 | 10.4 |
|
Q5248/26 XHTML |
2026-09-29 | 1313 | C41 | 46-22-26.1 | 72-28-16.3 | From 7 to 22 meters South of the North limit of the channel | 279 | 16 | 10.8 |
|
Q5247/26 XHTML |
2026-09-29 | 1313 | C43 | 46-22-17.6 | 72-28-40.6 | From 0 to 7 meters South of the North limit of the channel | 166 | 7 | 10.0 |
|
Q5246/26 XHTML |
2026-09-29 | 1313 | C43 | 46-22-18.0 | 72-28-40.2 | From 7 to 14 meters South of the North limit of the channel | 164 | 8 | 10.7 |
|
Q5245/26 XHTML |
2026-09-29 | 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 |
|
Q5242/26 XHTML |
2026-09-24 | 1313 | C39 | 46-22-29.9 | 72-28-2.8 | From 7 to 18 meters South of the North limit of the channel | 187 | 10 | 11.0 |
|
Q5237/26 XHTML |
2026-09-24 | 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 |
|
Q5230/26 XHTML |
2026-09-22 | 1311 | S141 | 46-03-41.8 | 73-05-9.6 | From 8 to 15 meters South of the North limit of the channel | 7 | 8 | 11.2 |
|
Q5231/26 XHTML |
2026-09-22 | 1311 | S141 | 46-03-43.6 | 73-04-48.0 | From 7 to 26 meters South of the North limit of the channel | 190 | 19 | 10.9 |
|
Q5221/26 XHTML |
2026-09-17 | 1311 | S146 | 46-03-40.9 | 73-05-13.6 | From 16 to 37 meters South of the North limit of the channel | 16 | 21 | 11.1 |
|
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 |
|
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 |
|
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 |
|
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 |
|
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: 2026-11-06 16:45
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