Icebreakers
Historical Background
The federal government has been providing icebreaking
services since 1873 when Prince Edward Island stipulated
year-round ferry service as a condition for entry into
confederation. In the St. Lawrence River valley, annual
winter flooding was caused by the formation of ice
barriers in the narrow points of the river. In 1904,
icebreakers were assigned to break up the ice at
strategic locations in the river and keep the ice moving
down the deepest channels. A benefit of the flood control
activities was the opening of the river to winter
navigation, and other than a few exceptional days during
severe weather conditions, the river has been kept open
year-round as far as Montreal since the late 1950's.
In the early 1920's, regular Arctic patrols by
icebreakers during the short summer navigation season
were initiated to respond to several needs, including the
resupply of isolated outposts and native settlements and
also backing up Canadian claims to sovereignty over the
Arctic Archipelago.
Stanley 2 - one of the first
icebreakers
Main Objectives of Icebreaking
Program
- to ensure the provision, operation and
maintenance of icebreakers, facilities and
services to facilitate the safe and efficient
movement of marine traffic through or around
ice-covered waters
- to support marine related activities and other
government objectives, including sovereignty in
the Canadian Arctic
- to minimize the effect of flooding caused by ice
jams on the upper St. Lawrence River
A modern day icebreaker
Mission Statements (Key Result
Areas)
The following 8 services are carried
out by the Icebreaking Program:
Route Assistance
To escort ships separately or in convoy, to
maintain tracks through ice-covered waters and to stand
by for escort requests.
Ice Routing and Information Services
To provide ice information and
reconnaissance services, and to manage ice operations
centres.
Flood Control
To provide flood control in ice-covered waters
where the federal government has traditionally accepted
responsibility.
Marine Facility and Port Maintenance
To break out ice from wharf faces and harbour
approaches in order to increase accessibility to
shipping.
Fishing Harbour Breakout
To break out approaches and clear wharf
faces in harbours, where the predominant commercial
activity is fishing or is directly related to the fishing
industry.
Northern Resupply Support
To coordinate the resupply of Northern
settlements and military sites in accordance with the
Treasury Board mandate.
Research, Development and Survey Support
To support scientific and data collection
activities in ice-covered waters.
Sovereignty Support
To support the interests of Canadian sovereignty
by maintaining an active presence in the Arctic Region.
The Henry Larsen - another modern day
icebreaker
Support To Other Programs
In addition to the primary services
defined in the previous section, the Canada Coast Guard
(CCG) icebreaking vessels provide secondary support to
other programs in ice-covered waters where they are often
the only vessels capable of responding in those
conditions.
Search and Rescue Program
Providing search and rescue (SAR), medevac and
emergency assistance where ice coverage requires the
attendance of ice-capable ships.
Marine Regulatory Programs
(Ship Safety, Emergencies)
Responding to marine oil pollution incidents in
ice-covered waters by providing the necessary resources
for the department as lead agency in pollution clean-up
in the marine environment.
Marine Navigation Services
Programs
Placing, lifting or performing routine
maintenance on fixed/floating Navaids in ice-covered
waters. Resupplying lighthouses and marine installations
during the ice season.
Description of CCG Icebreaker
Classifications
Ship Type |
Description |
Operational
Capabilities |
Example |
1500 |
POLAR ICEBREAKER |
Year round
operations - all Arctic waters. |
N/A |
1400 |
MEDIUM POLAR ICEBREAKER |
Year round
operations - all Arctic waters. |
N/A |
1300 |
HEAVY GULF ICEBREAKER |
Large ship
escort in severe Gulf of St. Lawrence and
Atlantic ice and weather conditions.
Capable of extended season operations
through areas of ice zone 6 or less
severity. |
Louis S.
St-Laurent |
1200 |
MEDIUM/GULF RIVER
ICEBREAKER |
Large ship
escort operations in southern Canadian
waters as well as Arctic areas during
summer season. |
Henry
Larsen |
1100 |
MAJOR NAVAIDS
TENDER/LIGHT ICEBREAKER |
Buoy
handling and medium capacity cargo; small
to medium vessel escort in southern
Canadian and sub-Arctic waters. |
Griffon |
1050 |
MEDIUM NAVAIDS
TENDER/LIGHT ICEBREAKER |
Buoy
handling, restricted mainly to deck
cargo; small to medium vessel escort in
moderate ice conditions south of the
Arctic. |
Earl Grey |
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Information
taken from CCG Icebreaking Operations, Levels of
Service, January 1993 and CCG Fleet List, April
1996
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Images
courtesy of the Canadian Coast Guard, Icebreaking
division
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