Canadian Coast Guard Catalog of shoals in the navigable waterways
Updated by the Navigable Waterways Management division
Zone:   Montréal to Québec

 Last data update: 2011-11-28 08:32
Number Date Chart Reference point Center position Shoal location
In reference to the channel limits		 Dimensions
Latitude Longitude Lenght Width Depth
Sector:   Montréal - Sorel
Q5016/11 2011-05-09 1310 M207 45-30-26.09 73-32-45.06 From 35 to 40 meters South of the North limit of the channel 24 5 10.6
Q5014/11 2011-05-09 1310 M207 45-30-10.76 73-32-43.79 From 36 to 55 meters North of the South limit of the channel 194 20 10.4
Q5013/11 2011-05-09 1310 M207 45-30-11.21 73-32-42.39 From 0 to 36 meters North of the South limit of the channel 378 36 09.2
Q5017/11 2011-05-09 1310 M201 45-30-35.52 73-32-41.35 From 82 to 86 meters South of the North limit of the channel 13 4 10.6
Q5018/11 2011-05-09 1310 M201 45-30-36.53 73-32-39.02 From 63 to 66 meters North of the South limit of the channel 4 3 10.6
Q5019/11 2011-05-09 1310 M201 45-30-34.26 73-32-37.77 From 18 to 38 meters North of the South limit of the channel 35 20 10.4
Q5020/11 2011-05-09 1310 M201 45-30-34.81 73-32-36.75 From 0 to 19 meters North of the South limit of the channel 196 19 09.7
Q5021/11 2011-05-10 1310 M199 45-30-55.87 73-32-34.39 From 14 to 53 meters North of the South limit of the channel 238 39 10.3
Q5022/11 2011-05-10 1310 M201 45-30-49.24 73-32-34.20 From 0 to 17 meters North of the South limit of the channel 267 17 10.0
Q5136/11 2011-10-14 1310 ISH 45-32-02.91 73-32-01.28 From 48 to 50 meters North of the South limit of the channel 2 2 10.6
Q5137/11 2011-10-14 1310 ISH 45-32-10.55 73-31-54.40 From 44 to 47 meters North of the South limit of the channel 2 3 10.9
Q5007/10 2010-05-03 1310 ISH 45-32-13.31 73-31-49.91 From 0 to 13 meters North of the South limit of the channel 345 13 10.0
Q5135/11 2011-10-14 1310 M187 45-32-58.07 73-31-21.86 From 31 to 35 meters South of the North limit of the channel 2 4 10.8
Q5140/11 2011-11-01 1310 LGLA 45-33-37.80 73-31-08.85 18 19 10.6
Q5105/08 2008-07-16 1310 section 55 45-33-32.20 73-31-07.90 from 140 to 170 meters North of the North limit of the channel 30 15 09.6
Q5133/11 2011-10-13 1310 M175 45-34-21.29 73-30-31.98 From 10 to 12 meters South of the North limit of the channel 1 2 10.6
Q5027/11 2011-05-10 1310 M166 45-36-10.00 73-30-21.51 From 0 to 17 meters South of the North limit of the channel 241 17 10.5
Q5098/09 2009-07-09 1310 M163 45-36-37.40 73-29-56.60 from 0 to 10 meters North of the South limit of the anchorage 121 10 07.9
Q5096/10 2010-08-04 1310 MEB 45-36-39.88 73-29-50.22 From 0 to 8 meters North of the South limit of the channel 31 8 08.5
Q5139/11 2011-10-18 1310 PATH 45-37-50.43 73-29-04.35 From 0 to 13 meters North of the South limit of the anchorage area 35 13 10.3
Q5138/11 2011-10-18 1310 PATC 45-38-28.30 73-28-36.52 From 0 to 13 meters North of the South limit of the anchorage area 106 13 11.1
Q5044/09 2009-05-25 1311 M57 45-50-15.80 73-16-50.80 from 0 to 21 meters North of the South limit of the anchorage area 182 21 09.8
Q5163/10 2010-10-27 1311 M20 45-54-40.46 73-13-01.57 From 0 to 21 meters South of the North limit of the channel 335 21 10.3
Q5131/11 2011-10-11 1311 M1 46-02-14.03 73-09-46.18 From 14 to 19 meters North of the South limit of the channel 8 5 09.9
Sector:   Sorel - Trois-Rivières
Q5127/11 2011-10-06 1311 S146 46-03-37.51 73-05-44.13 From 7 to 26 meters South of the North limit of the channel 353 19 11.0
Q5128/11 2011-10-06 1311 S141 46-03-43.26 73-04-53.25 From 6 to 16 meters South of the North limit of the channel 363 10 10.7
Q5129/11 2011-10-06 1311 S141 46-03-43.28 73-04-49.92 From 17 to 24 meters South of the North limit of the channel 14 8 11.1
Q5101/11 2011-08-23 1312 S121/1 46-05-06.32 73-00-21.08 From 0 to 19 meters North of the South limit of the channel 487 19 10.4
Q5122/11 2011-09-28 1312 S110 46-07-47.79 72-57-26.94 From 0 to 21 meters South of the North limit of the channel 528 21 09.7
Q5188/10 2010-11-29 1312 S63 46-12-23.64 72-49-28.47 From 0 to 79 meters North of the South limit of the anchorage area 532 79 08.0
Q5191/10 2010-11-29 1312 YAMB 46-12-27.49 72-49-09.54 From 82 to 146 meters North of the South limit of the anchorage area 295 64 10.5
Q5190/10 2010-11-29 1312 YAMB 46-12-31.96 72-48-52.79 From 0 to 45 meters North of the South limit of the anchorage area 1236 45 10.4
Q5189/10 2010-11-29 1312 S51 46-12-30.85 72-48-50.99 From 0 to 52 meters North of the South limit of the anchorage area 1174 52 09.1
Q5179/09 2009-11-25 1312 S17 46-15-45.20 72-41-07.40 from 10 to 14 meters North of the South limit of the channel 27 4 11.1
Q5169/10 2010-11-08 1312 PSF5 46-16-10.19 72-37-35.96 From 0 to 6 meters North of the South limit of the channel 426 6 10.8
Q5168/10 2010-11-08 1312 PSF6 46-16-20.57 72-37-16.81 From 0 to 7 meters North of the South limit of the channel 218 7 11.1
Sector:   Trois-Rivières - Québec
Q5006/11 2011-04-29 1313 C41 46-22-24.73 72-28-20.12 From 0 to 21 meters North of the South limit of the channel 395 21 11.1
Q5144/11 2011-11-21 1313 C34 46-22-48.36 72-26-28.31 From 0 to 39 meters North of the South limit of the channel 336 39 09.1
Q5005/10 2010-04-29 1313 C30 46-23-03.52 72-26-04.58 From 7 to 14 meters South of the North limit of the channel 17 7 10.9
Q5004/11 2011-04-28 1313 C28 46-23-10.30 72-25-48.20 From 0 to 18 meters South of the North limit of the channel 135 18 10.9
Q5075/11 2011-07-15 1313 C23 46-24-21.92 72-23-04.10 From 211 to 241 meters North of the South limit of the anchorage area 235 31 10.4
Q5074/11 2011-07-15 1313 C23 46-24-19.03 72-23-03.14 From 43 to 176 meters North of the South limit of the anchorage area 218 133 10.6
Q5073/11 2011-07-15 1313 C23 46-24-14.67 72-23-02.19 From 0 to 70 meters North of the South limit of the anchorage area 128 70 09.0
Q5143/11 2011-11-17 1313 C20 46-24-49.91 72-22-39.20 From 36 to 44 meters North of the South limit of the channel 9 9 11.1
Q5181/10 2010-11-19 1313 C21 46-24-34.06 72-22-30.38 From 0 to 43 meters North of the South limit of the anchorage area 162 43 10.6
Q5141/11 2011-11-10 1313 D77 46-28-43.15 72-14-31.37 From 5 to 14 meters South of the North limit of the channel 11 9 11.1
Q5077/11 2011-07-18 1313 BATA 46-30-08.84 72-14-06.05 From 0 to 171 meters South of the North limit of the anchorage area 1745 171 08.6
Q5078/11 2011-07-18 1313 BATA 46-30-21.82 72-13-53.28 From 0 to 104 meters South of the North limit of the anchorage area 1042 104 09.1
Q5079/11 2011-07-18 1313 BATA 46-30-31.35 72-13-44.18 From 0 to 87 meters South of the North limit of the anchorage area 549 87 09.8
Q5144/10 2010-09-29 1314 D63 46-31-02.27 72-12-45.92 From 0 to 17 meters North of the South limit of the channel 46 17 10.3
Q5145/11 2011-11-22 1314 D38 46-33-39.20 72-07-58.26 From 23 to 29 meters South of the North limit of the channel 6 7 10.3
Q5024/11 2011-05-10 1314 D38 46-33-40.71 72-07-55.87 From 6 to 10 meters South of the North limit of the channel 4 4 10.4
Q5146/11 2011-11-28 1314 D35 46-33-37.59 72-07-38.55 From 0 to 9 meters North of the South limit of the channel 188 9 07.1
Q5175/09 2009-11-12 1314 D22 46-34-00.10 72-04-14.90 from 0 to 8 meters South of the North limit of the channel 323 8 08.9
Q5165/10 2010-11-03 1314 D9 46-34-48.52 72-01-35.79 From 0 to 7 meters North of the South limit of the channel 27 7 10.4
Q5057/10 2010-06-18 1314 D4 46-35-25.67 72-00-34.53 480 24 09.8
Q5073/09 2009-06-12 1314 D4 46-35-33.60 72-00-19.80 268 17 10.5
Q5072/09 2009-06-12 1314 D4 46-35-38.80 72-00-13.80 725 14 09.8
Q5071/09 2009-06-12 1314 D4 46-35-52.70 71-59-54.20 275 54 10.3
Q5058/10 2010-06-18 1314 GROA 46-35-34.44 71-59-49.74 376 66 08.8
Q5081/11 2011-07-21 1314 Q83 46-37-08.76 71-57-48.14 62 12 10.2
Q5126/11 2011-10-05 1314 Q55 46-39-44.01 71-48-02.30 From 0 to 9 meters North of the South limit of the channel 52 9 10.4
Q5142/11 2011-11-16 1314 Q54 46-39-02.38 71-45-39.84 From 0 to 23 meters South of the North limit of the channel 1306 23 10.5
Q5125/11 2011-10-04 1314 Q50 46-38-22.69 71-44-10.07 From 0 to 18 meters North of the South limit of the channel 423 18 09.4
Q5071/11 2011-07-08 1314 Q48 46-38-32.10 71-42-03.63 From 0 to 16 meters South of the North limit of the channel 721 16 10.0
Q5173/10 2010-11-10 1315 Q38 46-39-43.90 71-37-41.60 From 0 to 10 meters South of the North limit of the channel 174 10 10.2
Q5174/10 2010-11-10 1315 Q38 46-39-47.58 71-37-32.81 From 0 to 13 meters South of the North limit of the channel 70 13 10.2
Q5175/10 2010-11-10 1315 Q38 46-40-04.49 71-36-53.31 From 0 to 8 meters South of the North limit of the channel 65 8 10.1
Q5172/10 2010-11-10 1315 Q37 46-40-25.76 71-35-30.75 From 34 to 35 meters South of the North limit of the channel 1 1 10.6
Q5072/11 2011-07-13 1315 Q32 46-41-12.12 71-33-07.09 From 5 to 22 meters South of the North limit of the channel 45 18 10.6
Measurements are given in meters
Water depths are given in reference to chart datum