casey holzworth lightning round coxsackie
DESCRIPTION
Lightning round presentation from Casey Holzworth (NYSParks) on Coxsackie, NY's sustainable shoreline.TRANSCRIPT
Hudson River Sustainable Shorelines
Case Study – Coxsackie Boat Launch
NYS OPRHP - Saratoga-Capital District Region
Level Scientific Common Size Quantity
Top Platanus occidentalis Sycamore 4-6' 3
Upper Cephalanthus occidentalis Buttonbush 18-24" 5
Cornus amomum Silky Dogwood 18-24" 5
Scirpus atrovirens Green Bulrush 2" 5
Scirpus cyperinus Woolgrass 2" 5
Mid Cephalanthus occidentalis Buttonbush 18-24" 3
Cornus amomum Silky Dogwood 18-24" 3
Scirpus cyperinus Woolgrass 2" 15
Scirpus atrovirens Green Bulrush 2" 15
Lower Scirpus cyperinus Woolgrass 2" 30
Scirpus atrovirens Green Bulrush 2" 30
Pontederia cordata Pickerelweed 2" 50
Total 169
Totals Platanus occidentalis Sycamore 4-6' 3
Cephalanthus occidentalis Buttonbush 18-24" 8
Cornus amomum Silky Dogwood 18-24" 8
Schoenoplectus pungens Woolgrass 2" 50
Schoenoplectus tabernaemontani Green Bulrush 2" 50
Pontederia cordata Pickerelweed 2" 50
Level Scientific Common Size Quantity
Top Platanus occidentalis Sycamore 4-6' 3
Upper Cephalanthus occidentalis Buttonbush 18-24" 5
Cornus amomum Silky Dogwood 18-24" 5
Scirpus atrovirens Green Bulrush 2" 5
Scirpus cyperinus Woolgrass 2" 5
Mid Cephalanthus occidentalis Buttonbush 18-24" 3
Cornus amomum Silky Dogwood 18-24" 3
Scirpus cyperinus Woolgrass 2" 15
Scirpus atrovirens Green Bulrush 2" 15
Lower Scirpus cyperinus Woolgrass 2" 30
Scirpus atrovirens Green Bulrush 2" 30
Pontederia cordata Pickerelweed 2" 50
Total 169
Totals Platanus occidentalis Sycamore 4-6' 3
Cephalanthus occidentalis Buttonbush 18-24" 8
Cornus amomum Silky Dogwood 18-24" 8
Schoenoplectus pungens Woolgrass 2" 50
Schoenoplectus tabernaemontani Green Bulrush 2" 50
Pontederia cordata Pickerelweed 2" 50
Average High Tide
Rock Armoring
Rock sill Planting Areas
Forensic Analysis Results Stevens Institute Engineering Study
NYS OPRHP - Saratoga-Capital District Region
• Submerged during major storms - limited
damage
• Ice/debris and possibly wakes play a significant
role at the site
• Implications of contractor modified stone size
from the design
• Current lack of maintenance may be
contributing to project degradation
Functional Analysis
NYS OPRHP - Saratoga-Capital District Region
• What is the status of the erosion at the site?
• How is the project performing ecologically?
• How does this project compare to nearby hard
shoreline techniques?
• Alternative view of maintenance implications
Site Erosion
NYS OPRHP - Saratoga-Capital District Region
Lots Of Vegetation
=
No Erosion
Erosion due mostly to
non-overtopping events
Ecological Performance
NYS OPRHP - Saratoga-Capital District Region
Shallow Slope,
No Major Voids,
+ Vegetation
=
Connectivity
Spaced
Rock Sill
=
Protection
Without
Blockage
Lots of
Submerged
Aquatic Veg.
NYS OPRHP - Saratoga-Capital District Region
Proximate Hard Shoreline Comparisons
Steep Slope,
Large Rock,
No Soil
=
No Vegetation,
No Connectivity
Steep Entry,
Hardened
Shore,
No Sill
=
No Vegetation
Proximate Hard Shoreline Comparisons
NYS OPRHP - Saratoga-Capital District Region
Vertical Face
=
No Vegetation
Less
Vegetation
=
Lee Side
Erosion?
Outline of
Submerged
Rock Wall
Overtopped
=
Limited
Connectivity
Maintenance
NYS OPRHP - Saratoga-Capital District Region
Trees and Shrubs
Planted Trees and Shrubs
Removed
Negative
Maintenance?
NO MAINTENANCE!
NYS OPRHP - Saratoga-Capital District Region
Hudson River Sustainable Shorelines
Case Study – Coxsackie Boat Launch
NYS OPRHP - Saratoga-Capital District Region
Questions?