Search for NAVWARNs

Search Criteria

Map of selected areas
Reset
Navigational Warnings (NAVWARNs) replace Notices to Shipping (NOTSHIPs) and shall be construed as Notices to Shipping
Grid
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.
Areas affected by the message
Waterway information - Lock closure - Trent-Severn Waterway - Swift Rapids
2024-07-25 20:58 UTC
NW-C-1944-24

Swift Rapids lock 43 inoperative.

Areas affected by the message
Aids to Navigation - Great Lakes, Lake Nipissing - West Arm
2024-07-09 12:33 UTC To 2025-01-01 00:00 UTC
NW-C-1696-24

Privately maintained navigational aids may be unreliable due to multiple buoys reported having discrepancies.

Areas affected by the message
Aids to Navigation - Lake Simcoe, Trent-Severn Waterway - Holland River
2024-07-08 21:42 UTC To 2025-01-01 00:00 UTC
NW-C-1685-24

Privately maintained unidentified red buoy listing.

Areas affected by the message
Obstruction - Trent-Severn Waterway - Holland River
2024-06-18 14:51 UTC
NW-C-1411-24

Scientific moorings marked with a surface float established at:

44 09.848N 079 31.093W
44 09.797N 079 30.958W

Areas affected by the message
Marine works - Bridge repair - Trent-Severn Waterway - Chemong Lake
2024-06-11 21:13 UTC
NW-C-1320-24

Bridge repair work taking place on the Chemong Bridge of the James A Gifford causeway. Temporary work platform hanging below the bridge on the north side reducing veritcal clearance by 30 centimetres. A 4 metre channel through the centre of the bridge will remain unrestricted. 

Areas affected by the message
Aids to Navigation - Trent-Severn Waterway - Nassau
2024-06-10 11:04 UTC
NW-C-1298-24

White markers temporarily established between buoys C79 and C81 indicating shoreline restoration work. 

Areas affected by the message
Aids to Navigation - Lake Simcoe, Trent-Severn Waterway - Keswick
2024-06-07 15:28 UTC
NW-C-1276-24

Unlit

Aids: Maskinonge (Jersey) River light buoy SA1 LL 1365.5
Areas affected by the message
Aids to Navigation - Lake Simcoe, Trent-Severn Waterway - Cook's Bay
2024-05-24 21:47 UTC
NW-C-1092-24

Channel marker SS26 off station at 44 12.403N 079 30.798W

Areas affected by the message
Obstruction - Trent-Severn Waterway - Rice Lake
2024-05-24 19:59 UTC
NW-C-1090-24

Yellow scientific bouys with white danger buoys established at:

44 14.948N 078 04.705W

44 10.942N 078 10.716W

44 08.887N 078 13.625W

Areas affected by the message
Aids to Navigation - Trent-Severn Waterway - Trenton
2024-05-17 20:11 UTC
NW-C-0992-24

Marker temporarily established in 44 06.826N 077 35.537W to mark a rock.

Areas affected by the message
Aids to Navigation - Lake Simcoe, Trent-Severn Waterway - Keswick
2024-04-24 17:28 UTC
NW-C-0646-24

Orange buoy temporarily established at 44 13.927N 079 28.326W to mark Keswick water treatment facility manhole. 

Areas affected by the message
Obstruction - Lake Simcoe, Trent-Severn Waterway - Atherley
2024-04-22 15:16 UTC
NW-C-0615-24

Subsurface scientific equipment placed 2 metres below the surface at:

44 36.265N 079 22.193W
44 36.263N 079 22.167W

Areas affected by the message
Obstruction - Lake Simcoe, Trent-Severn Waterway - Kempenfelt Bay
2023-11-14 15:20 UTC
NW-C-2208-23

Subsurface scientific mooring temporarily established at 44 23.880N 079 34.269W, 3 metres below the surface.

Areas affected by the message
Obstruction - Dock - Lake Simcoe, Trent-Severn Waterway - Barrie
2021-06-30 15:39 UTC
NW-C-0961-21

Dock 3.6 metres by 60 centimetres submerged 60 centimetres at 44 23.52N 079 39.11W.

Areas affected by the message
Aids to Navigation - Trent-Severn Waterway - Rice Lake
2021-06-03 21:38 UTC
NW-C-0765-21

Temporarily removed and replaced with a red spar buoy.

Aids: Otonabee River east entrance light LL 1347.5
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.
Details
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.
ID Date Title Areas Charts Description
NW-C-1944-24
Areas affected by the message
44° 51.460'N 079° 32.414'W
Pt 1: 44° 51.475'N 079° 32.428'W
Pt 2: 44° 51.457'N 079° 32.390'W
Pt 3: 44° 51.445'N 079° 32.401'W
Pt 4: 44° 51.464'N 079° 32.439'W
Pt 5: 44° 51.470'N 079° 32.434'W
2024-07-25 20:58 UTC Waterway information - Lock closure Trent-Severn Waterway - Swift Rapids 2029(NAD83)

Swift Rapids lock 43 inoperative.
NW-C-1696-24
Areas affected by the message
46° 14.924'N 080° 23.813'W
Pt 1: 46° 16.296'N 080° 28.489'W
Pt 2: 46° 16.346'N 080° 19.268'W
Pt 3: 46° 13.442'N 080° 19.250'W
Pt 4: 46° 13.615'N 080° 28.489'W
2024-07-09 12:33 UTC To 2025-01-01 00:00 UTC Aids to Navigation Great Lakes, Lake Nipissing - West Arm 6038(NAD83)

Privately maintained navigational aids may be unreliable due to multiple buoys reported having discrepancies.
NW-C-1685-24
Areas affected by the message
44° 12.343'N 079° 30.776'W
Pt 1: 44° 12.471'N 079° 30.956'W
Pt 2: 44° 12.472'N 079° 30.548'W
Pt 3: 44° 12.241'N 079° 30.694'W
Pt 4: 44° 12.155'N 079° 30.886'W
Pt 5: 44° 12.198'N 079° 30.961'W
Pt 6: 44° 12.265'N 079° 30.905'W
Pt 7: 44° 12.376'N 079° 30.886'W
2024-07-08 21:42 UTC To 2025-01-01 00:00 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Holland River 2028(NAD83)

Privately maintained unidentified red buoy listing.
NW-C-1411-24
Areas affected by the message
44° 09.848'N 079° 31.093'W
44° 09.797'N 079° 30.958'W
2024-06-18 14:51 UTC Obstruction Trent-Severn Waterway - Holland River 2028(NAD83)

Scientific moorings marked with a surface float established at:

44 09.848N 079 31.093W
44 09.797N 079 30.958W
NW-C-1320-24
Areas affected by the message
44° 23.150'N 078° 23.175'W
Pt 1: 44° 23.174'N 078° 23.191'W
Pt 2: 44° 23.157'N 078° 23.136'W
Pt 3: 44° 23.125'N 078° 23.158'W
Pt 4: 44° 23.144'N 078° 23.213'W
2024-06-11 21:13 UTC Marine works - Bridge repair Trent-Severn Waterway - Chemong Lake 2024(NAD83)

Bridge repair work taking place on the Chemong Bridge of the James A Gifford causeway. Temporary work platform hanging below the bridge on the north side reducing veritcal clearance by 30 centimetres. A 4 metre channel through the centre of the bridge will remain unrestricted. 
NW-C-1298-24
Areas affected by the message
44° 21.188'N 078° 17.534'W
44° 21.715'N 078° 17.402'W
2024-06-10 11:04 UTC Aids to Navigation Trent-Severn Waterway - Nassau 2023(NAD83), 2024(NAD83)

White markers temporarily established between buoys C79 and C81 indicating shoreline restoration work. 
NW-C-1276-24
Areas affected by the message
44° 13.549'N 079° 28.347'W
2024-06-07 15:28 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Keswick 2028(NAD83)

Unlit

Aids: Maskinonge (Jersey) River light buoy SA1 LL 1365.5
NW-C-1092-24
Areas affected by the message
44° 12.403'N 079° 30.798'W
2024-05-24 21:47 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Cook's Bay 2028(NAD83)

Channel marker SS26 off station at 44 12.403N 079 30.798W
NW-C-1090-24
Areas affected by the message
44° 14.948'N 078° 04.705'W
44° 10.942'N 078° 10.716'W
44° 08.887'N 078° 13.625'W
2024-05-24 19:59 UTC Obstruction Trent-Severn Waterway - Rice Lake 2022(NAD83), 2022(NAD83), 2022(NAD83)

Yellow scientific bouys with white danger buoys established at:

44 14.948N 078 04.705W

44 10.942N 078 10.716W

44 08.887N 078 13.625W
NW-C-0992-24
Areas affected by the message
44° 06.826'N 077° 35.537'W
2024-05-17 20:11 UTC Aids to Navigation Trent-Severn Waterway - Trenton 2021(NAD83), 2021(NAD83)

Marker temporarily established in 44 06.826N 077 35.537W to mark a rock.
NW-C-0646-24
Areas affected by the message
44° 13.927'N 079° 28.326'W
2024-04-24 17:28 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Keswick 2028(NAD83)

Orange buoy temporarily established at 44 13.927N 079 28.326W to mark Keswick water treatment facility manhole. 
NW-C-0615-24
Areas affected by the message
44° 36.265'N 079° 22.193'W
44° 36.263'N 079° 22.167'W
2024-04-22 15:16 UTC Obstruction Lake Simcoe, Trent-Severn Waterway - Atherley 2028(NAD83)

Subsurface scientific equipment placed 2 metres below the surface at:

44 36.265N 079 22.193W
44 36.263N 079 22.167W
NW-C-2208-23
Areas affected by the message
44° 23.880'N 079° 34.269'W
2023-11-14 15:20 UTC Obstruction Lake Simcoe, Trent-Severn Waterway - Kempenfelt Bay 2028(NAD83)

Subsurface scientific mooring temporarily established at 44 23.880N 079 34.269W, 3 metres below the surface.
NW-C-0961-21
Areas affected by the message
44° 23.518'N 079° 39.112'W
2021-06-30 15:39 UTC Obstruction - Dock Lake Simcoe, Trent-Severn Waterway - Barrie 2028(NAD83), 2028(NAD83)

Dock 3.6 metres by 60 centimetres submerged 60 centimetres at 44 23.52N 079 39.11W.
NW-C-0765-21
Areas affected by the message
44° 08.910'N 078° 13.428'W
2021-06-03 21:38 UTC Aids to Navigation Trent-Severn Waterway - Rice Lake 2022(NAD83), 2022(NAD83)

Temporarily removed and replaced with a red spar buoy.

Aids: Otonabee River east entrance light LL 1347.5
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.
Table
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.
ID Date Title Areas Charts Description
NW-C-1944-24 2024-07-25 20:58 UTC Waterway information - Lock closure Trent-Severn Waterway - Swift Rapids 2029(NAD83)

Swift Rapids lock 43 inoperative.
NW-C-1696-24 2024-07-09 12:33 UTC To 2025-01-01 00:00 UTC Aids to Navigation Great Lakes, Lake Nipissing - West Arm 6038(NAD83)

Privately maintained navigational aids may be unreliable due to multiple buoys reported having discrepancies.
NW-C-1685-24 2024-07-08 21:42 UTC To 2025-01-01 00:00 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Holland River 2028(NAD83)

Privately maintained unidentified red buoy listing.
NW-C-1411-24 2024-06-18 14:51 UTC Obstruction Trent-Severn Waterway - Holland River 2028(NAD83)

Scientific moorings marked with a surface float established at:

44 09.848N 079 31.093W
44 09.797N 079 30.958W
NW-C-1320-24 2024-06-11 21:13 UTC Marine works - Bridge repair Trent-Severn Waterway - Chemong Lake 2024(NAD83)

Bridge repair work taking place on the Chemong Bridge of the James A Gifford causeway. Temporary work platform hanging below the bridge on the north side reducing veritcal clearance by 30 centimetres. A 4 metre channel through the centre of the bridge will remain unrestricted. 
NW-C-1298-24 2024-06-10 11:04 UTC Aids to Navigation Trent-Severn Waterway - Nassau 2023(NAD83), 2024(NAD83)

White markers temporarily established between buoys C79 and C81 indicating shoreline restoration work. 
NW-C-1276-24 2024-06-07 15:28 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Keswick 2028(NAD83)

Unlit

Aids: Maskinonge (Jersey) River light buoy SA1 LL 1365.5
NW-C-1092-24 2024-05-24 21:47 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Cook's Bay 2028(NAD83)

Channel marker SS26 off station at 44 12.403N 079 30.798W
NW-C-1090-24 2024-05-24 19:59 UTC Obstruction Trent-Severn Waterway - Rice Lake 2022(NAD83), 2022(NAD83), 2022(NAD83)

Yellow scientific bouys with white danger buoys established at:

44 14.948N 078 04.705W

44 10.942N 078 10.716W

44 08.887N 078 13.625W
NW-C-0992-24 2024-05-17 20:11 UTC Aids to Navigation Trent-Severn Waterway - Trenton 2021(NAD83), 2021(NAD83)

Marker temporarily established in 44 06.826N 077 35.537W to mark a rock.
NW-C-0646-24 2024-04-24 17:28 UTC Aids to Navigation Lake Simcoe, Trent-Severn Waterway - Keswick 2028(NAD83)

Orange buoy temporarily established at 44 13.927N 079 28.326W to mark Keswick water treatment facility manhole. 
NW-C-0615-24 2024-04-22 15:16 UTC Obstruction Lake Simcoe, Trent-Severn Waterway - Atherley 2028(NAD83)

Subsurface scientific equipment placed 2 metres below the surface at:

44 36.265N 079 22.193W
44 36.263N 079 22.167W
NW-C-2208-23 2023-11-14 15:20 UTC Obstruction Lake Simcoe, Trent-Severn Waterway - Kempenfelt Bay 2028(NAD83)

Subsurface scientific mooring temporarily established at 44 23.880N 079 34.269W, 3 metres below the surface.
NW-C-0961-21 2021-06-30 15:39 UTC Obstruction - Dock Lake Simcoe, Trent-Severn Waterway - Barrie 2028(NAD83), 2028(NAD83)

Dock 3.6 metres by 60 centimetres submerged 60 centimetres at 44 23.52N 079 39.11W.
NW-C-0765-21 2021-06-03 21:38 UTC Aids to Navigation Trent-Severn Waterway - Rice Lake 2022(NAD83), 2022(NAD83)

Temporarily removed and replaced with a red spar buoy.

Aids: Otonabee River east entrance light LL 1347.5
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.
Compact
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.
ID Date Charts Title
NW-C-1944-24 2024-07-25 20:58 UTC 2029(NAD83) Waterway information - Lock closure

Swift Rapids lock 43 inoperative.
NW-C-1696-24 2024-07-09 12:33 UTC To 2025-01-01 00:00 UTC 6038(NAD83) Aids to Navigation

Privately maintained navigational aids may be unreliable due to multiple buoys reported having discrepancies.
NW-C-1685-24 2024-07-08 21:42 UTC To 2025-01-01 00:00 UTC 2028(NAD83) Aids to Navigation

Privately maintained unidentified red buoy listing.
NW-C-1411-24 2024-06-18 14:51 UTC 2028(NAD83) Obstruction

Scientific moorings marked with a surface float established at:

44 09.848N 079 31.093W
44 09.797N 079 30.958W
NW-C-1320-24 2024-06-11 21:13 UTC 2024(NAD83) Marine works - Bridge repair

Bridge repair work taking place on the Chemong Bridge of the James A Gifford causeway. Temporary work platform hanging below the bridge on the north side reducing veritcal clearance by 30 centimetres. A 4 metre channel through the centre of the bridge will remain unrestricted. 
NW-C-1298-24 2024-06-10 11:04 UTC 2023(NAD83), 2024(NAD83) Aids to Navigation

White markers temporarily established between buoys C79 and C81 indicating shoreline restoration work. 
NW-C-1276-24 2024-06-07 15:28 UTC 2028(NAD83) Aids to Navigation

Unlit

Aids: Maskinonge (Jersey) River light buoy SA1 LL 1365.5
NW-C-1092-24 2024-05-24 21:47 UTC 2028(NAD83) Aids to Navigation

Channel marker SS26 off station at 44 12.403N 079 30.798W
NW-C-1090-24 2024-05-24 19:59 UTC 2022(NAD83), 2022(NAD83), 2022(NAD83) Obstruction

Yellow scientific bouys with white danger buoys established at:

44 14.948N 078 04.705W

44 10.942N 078 10.716W

44 08.887N 078 13.625W
NW-C-0992-24 2024-05-17 20:11 UTC 2021(NAD83), 2021(NAD83) Aids to Navigation

Marker temporarily established in 44 06.826N 077 35.537W to mark a rock.
NW-C-0646-24 2024-04-24 17:28 UTC 2028(NAD83) Aids to Navigation

Orange buoy temporarily established at 44 13.927N 079 28.326W to mark Keswick water treatment facility manhole. 
NW-C-0615-24 2024-04-22 15:16 UTC 2028(NAD83) Obstruction

Subsurface scientific equipment placed 2 metres below the surface at:

44 36.265N 079 22.193W
44 36.263N 079 22.167W
NW-C-2208-23 2023-11-14 15:20 UTC 2028(NAD83) Obstruction

Subsurface scientific mooring temporarily established at 44 23.880N 079 34.269W, 3 metres below the surface.
NW-C-0961-21 2021-06-30 15:39 UTC 2028(NAD83), 2028(NAD83) Obstruction - Dock

Dock 3.6 metres by 60 centimetres submerged 60 centimetres at 44 23.52N 079 39.11W.
NW-C-0765-21 2021-06-03 21:38 UTC 2022(NAD83), 2022(NAD83) Aids to Navigation

Temporarily removed and replaced with a red spar buoy.

Aids: Otonabee River east entrance light LL 1347.5
Showing results 1 to 15, from 15 total results.
Showing results 1 to 15, from 15 total results.

Related links

Report a problem on this page
Please select all that apply:

Privacy statement

Privacy statement

Privacy statement, no sensible information will be sent.

Thank you for your help!

You will not receive a reply. For enquiries, please contact us.

Date Modified: