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Sustainable Shorelines:
Promoting resilient shore zonesand the human and natural
communities that depend on them
What Are Sustainable Shorelines?
Can be soft, mixed, or hard
Ecologically enhanced
Adaptable
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One size doesnt fit all
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Background
Tidal from NYC to Troy ~250 km
Half of shoreline has been
engineered
Very little green shoreline
Shorelines being modified to
control erosion, repair storm
damage, revitalize communities,
and provide public access
Hudson River Tidal Shorelines
Over 300 miles:
Natural 47%
Riprap 30%
Bulkhead, cribbing 11%
Remnant engineered 12%
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How can we best manage shorelineerosion in a changing
climate?
Harden to reduce
erosion?
Construct dikes?
Use soft engineering
approaches?
Allow shorelines to
migrate landward?
How solve these tough questions?
Collaborative research talk with and engage
our intended users
Regulators, engineers, designers, resource
managers
Intended users guided approach and products
Breadth: forums, interviews, case studies
Depth: SS Advisory Committee and Forensic Study
Technical Panel
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Project Goal
Develop science-based recommendationsfor shore zone management
that
preserves or enhances natural benefits
while meeting engineering needs
To provide tools and resources needed by
our intended users
Main Questions:
1. What physical stresses exist now? What are
our best forecasts of the future?
2. What management options exist? What are
the ecological, economic, and engineering
trade-offs among these?
3. Do shoreline options work?
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PHYSICAL FORCES
New characterizations of Hudson
River physical environments
Currents
Ice
Wakes
Water Levels
Surface wind waves
John Stark, 2012
SHORELINE PROTECTION OPTIONS
Ecological
benefits nowand future
Habitat &services
Structural
stability
Adaptability
Failure risk
Constructioncost
Maintenancecost
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Case studies, demonstration site
network, and forensic studies to show
what works
INFORMATION FOR DESIGNING SHORELINES
1. Sustainable Shorelines Project results:www.hrnerr.org --
management guidance, literaturereviews, research reports, case
studies, fact sheets,demonstration sites
2. GIS data on Hudson River estuary habitats &physical
environment links available at:
http://www.hrnerr.org/nerrs-research/habitat-mapping/
http://www.hrnerr.org/http://www.hrnerr.org/nerrs-research/habitat-mapping/http://www.hrnerr.org/nerrs-research/habitat-mapping/http://www.hrnerr.org/nerrs-research/habitat-mapping/http://www.hrnerr.org/nerrs-research/habitat-mapping/http://www.hrnerr.org/nerrs-research/habitat-mapping/http://www.hrnerr.org/nerrs-research/habitat-mapping/http://www.hrnerr.org/nerrs-research/habitat-mapping/http://www.hrnerr.org/
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SHORELINE TREATMENT CHOICES MATTERto ecology, stability, cost
& climate resilience
Betsy Blair, Manager
NYS Department of Environmental Conservation
Hudson River National Estuarine Research Reserve
Marine Habitat Protection Program, Regions 3 and 4
[email protected]
Thank you
