Baron - Jamaica Bay Task Force Meeting 18June24.pdf

Update by the Army Corps of Engineers on the Stoney Creek wetland Island Project
Jamaica Bay Restoration
wetlands

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“The views, opinions and findings contained in this report are
those of the authors(s) and should not be construed as an
official Department of the Army position, policy or decision,
unless so designated by other official documentation.”HUDSON RARITAN ESTUARY ECOSYSTEM
RESTORATION –JAMAICA BAY UPDATE JAMAICA BAY TASK FORCE MEETING LISA BARON
PROJECT MANAGER, CIVIL WORKS
NEW YORK DISTRICT
JUNE 18, 2024
1
File Name

2. File Name
2
Agenda
Spring Creek North
Spring Creek South
HRE- Fresh Creek
HRE- Duck Point
HRE- Stony Creek

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STONY CREEK MARSH ISLAND
Field Investigations Completed:
ERDC Hydrodynamic Data Collection
Instrument Deployment: 27 May - 2 June 2023
Instrument Service/Interim Data Download: 6-9 November 2023
Instrument Retrieval: May 2024
Data to be used to validate a system-wide hydrodynamic numeric model developed
to evaluate sediment flux, stabilization tec hniques and restoration alternatives for the
marsh islands.
Green – Wave/Current Profiler
Blue – Wave Sensors
Magenta – Water Level Loggers
Red Lines – Roving Current Survey
Surficial Sediment Grabs (not shown)
Atmospheric Sensor (not shown)

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STONY CREEK MARSH ISLAND
ERDC is utilizing field data to calibrate the
hydrodynamic model and will evaluate the design to
interrogate shoreline stabilization approaches. Report
expected in July. + Boat Wake Analysis
Hydrodynamic Modeling

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STONY CREEK MARSH ISLAND
Field Investigations Completed: •Bathymetric Surveys: 16 June – 2 July and December 2023
•Biological Surveys: Wetland Delineation, Bio-benchmark Surveys
and Vegetative Mapping: 23 October – 3 November 2023
•Topographic Surveys using drones: 26 February 2024
Aerial Coverage of Spartina Alterniflora
Vegetation Communities

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STONY CREEK MARSH ISLAND
Future Geotechnical Sampling
Pending SUP for summer/fall 2024
Standard Penetration Testing (SPT)

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STONY CREEK MARSH ISLAND
Design Progression
• Habitat acreage reduced and sand
volume increased due to greater
offshore depths measured from higher
resolution bathymetric and topographic
surveys.
• Healthy contiguous vegetation/existing
marsh will be preserved. A thin layer
placement technique would be used in
these areas.
Feasibility30%
<60%
<60% 30% Feasibility Habitat
4.3 10.79 8.67 Shallows (AC)
1 3.2 1.43 Tidal Channel (AC)
16 17.7 26 Low Marsh (AC)
22 13.3 22.5 High Marsh (AC)
3 3.2 3.4 Scrub/Shrub (AC)
46.3 48.1 62 Total Area (AC)
375,000 441,300 151,000 Sediment Volume (CY)

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STONY CREEK MARSH ISLAND
Living Shoreline Options
Christmas Tree
Fascines
Terraced Coir
LogsQuick Reef/
ECOncrete
Decisions on types and
placement will be informed
by hydrodynamic modeling
results.

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STONY CREEK MARSH ISLAND
•Advancing to 60% Designs
•Meeting with Partners
•Complete Field Sampling:
Geotechnical Sampling
(Summer/fall)
•Conduct Hydrodynamic
Modeling
•Complete 60%, 90% and 100%
design progressions
•Execute Project Partnership
Agreement for Construction
•Construction coordinated with
Navigation Project (early 2026)
Next Steps

10. HRE –DUCK POINT MARSH ISLAND
Authorized Plan: 47 acres of marsh
island habitat using 213,776 CYD
dredged material
Design Agreement executed on 29 May
2024 with NYCDEP
Data already collected for bathymetry
and hydrodynamics during Stony Creek
Investigation
Task Order for non-invasive surveys is
under development.
Develop Project Management Plan,
Schedule and budget
Total Project Cost: $31,772,000 (FY25)
PED Cost: $3,500,000 (FY24)

11. HRE –FRESH CREEK
Design Agreement executed with NYCDEP
on 29 May 2024
Total Habitat: ~80 acres
Opportunity for beneficial use of dredged
material
Hydrodynamic data collected in Jamaica
Bay will be helpful
Next Steps: Develop Project Management
Plan, Schedule, Budget and initiate field
data collection
Total Project Cost: $52,275,000 (FY25)
PED Cost: $5,000,000 (FY24)

12. Spring Creek North Ecosystem Restoration (
Continuing Authorities Program)
• Restoration of 43.2-acres including:
18.8 acres of wetlands
24.4 acres of maritime uplands
• Restoration through excavating and
recontouring uplands to intertidal
elevations, removing invasives species
and replanting; as well as restoring
existing degraded wetlands with Thin
Layer Placement techniques
•NYSDEC Tidal Wetlands and Water
Quality Certification 6 Dec 2023
•100% Plans and Specifications
approved 28 March 2024
•NYCDEP Stormwater Pollution
Prevention Permit – pending
•Special Use Permit for pump-out barge
for Thin Layer Placement- pending
•Ready to Advertise Milestone: 28 June
2024 and Construction scheduled for
Fall 2024

13. 13
HRE
Restoration
Sites in
Jamaica Bay
327 acres of habitat restoration: -206 acres of
marsh islands
-121 acres along
perimeter
~300,000 CYD
~50 acres
41 acres
80 acres
215,000 CYD
40 acres
285,000 CYD
29 acres
328,000 CYD
24 acres
352,000 CYD
29 acres
10 acres
2024
2024
2022
2027
2034
2032
2036
2029

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Questions?