p o r t m e t r o v a n c o u v e r.c o m
Linking Navigation Dredging to Ecosystem Restoration CEER 2014 Michael Cho, M&N
Habitat Enhancement Program
Agenda
1. Port Metro Vancouver and the Habitat Enhancement Program (HEP)
2. The Fraser River
3. Linking Navigation Dredging to Habitat Enhancement
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p o r t m e t r o v a n c o u v e r.c o m
• Non shareholder, financially self-sufficient corporation established by the Government of Canada
• Accountable to federal Minister of Transportation
• Offices in Vancouver and Beijing
1. PORT METRO VANCOUVER
p o r t m e t r o v a n c o u v e r.c o m
• Canada’s largest Gateway to the Asia-Pacific Region
• Connects Canadians with trading partners in more than 160 economies
• Handles more than $505 million of cargo daily on average
STRATEGICALLY POSITIONED
Pacific Ocean
Source: National Geographic
p o r t m e t r o v a n c o u v e r.c o m
• PMV focuses on long-term economic, social and environmental performance so that future generations will enjoy the benefits of trade, improved quality of life, and a healthy and vibrant ecosystem.
PORT METRO VANCOUVER’S APPROACH TO SUSTAINABILITY
p o r t m e t r o v a n c o u v e r.c o m
• Co-ordinated project environmental review
• Marine mammal monitoring and stewardship
• Habitat creation and enhancement
STEWARDSHIP OF LAND & WATER
p o r t m e t r o v a n c o u v e r.c o m
•Creating and improving fish & wildlife habitat in advance of port development projects
•Used to off-set the impacts of port development projects on existing habitat
PORT METRO VANCOUVER'S HABITAT ENHANCEMENT PROGRAM
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Before
After
p o r t m e t r o v a n c o u v e r.c o m
HABITAT ENHANCEMENT PROGRAM PROPOSED/ACTIVE PROJECTS
Musqueam Foreshore Tidal Marsh Project
Point Grey Tidal Marsh Project
South Arm Jetty Tidal Marsh Project
Westham Island/Canoe Pass Tidal Marsh Project
McDonald Tidal Marsh Project
Steveston Island Tidal Marsh Project
Glenrose Reach Tidal Marsh Project
Salt Marsh Restoration Projects
Vancouver Strait of Georgia
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2. The Fraser River
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p o r t m e t r o v a n c o u v e r.c o m
FRASER RIVER – OVERVIEW
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Vancouver
Geographic Location (Source: watercanada.net)
p o r t m e t r o v a n c o u v e r.c o m
LOWER FRASER RIVER ESTUARY
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• Total river sediment discharge ~12 Million m3/yr
• Navigation dredging ~2.5 Million m3 /yr
• Ocean disposal ~1 Million m3 /yr
Fraser River
Vancouver Strait of Georgia
Sediment Plume (Source: NASA website) Source: The Sedimentary Record
p o r t m e t r o v a n c o u v e r.c o m
Rock Jetty
Fraser River Training Wall
Strait of Georgia
Flood Tide Current
Vancouver
• River channelization and dredging occur for navigation and flood control
• Sediment is directed away from Sturgeon Bank 12
HUMAN/PHYSICAL PROCESSES
Sturgeon Bank
FRASER RIVER SOUTH ARM JETTY
• Sturgeon Bank is considered to be in ‘sediment deficit’
• ‘Sand Island’ was created in 1980
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Sturgeon Bank
3. Linking Navigation Dredging to Habitat Enhancement
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p o r t m e t r o v a n c o u v e r.c o m
• Marsh with design wave conditions: 50-year wave, NW Direction, and 2.4m GD (HHWLT)
COASTAL ENGINEERING ANALYSIS
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p o r t m e t r o v a n c o u v e r.c o m
Sturgeon Bank
Fraser River
SOUTH ARM JETTY TIDAL MARSH PROJECT CURRENT STATE – LOW WATER
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p o r t m e t r o v a n c o u v e r.c o m
SOUTH ARM JETTY TIDAL MARSH PROJECT PROPOSED CONCEPT – LOW WATER
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p o r t m e t r o v a n c o u v e r.c o m
• The proposed South Arm Jetty Tidal Marsh Project allows for the beneficial reuse of over 300,000 m3 of dredgeate from the Fraser River
• 40+ hectares of new fish rearing marsh is proposed to be created as a result of this project
LINKING DREDGING TO RESTORATION
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Questions/Discussion
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