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Spring 2022 Task Force Meeting presentation on Adjacent Sediment Slurry Enrichment Process.pptx

Spring 2022 Task Force Meeting presentation on Adjacent Sediment Slurry Enrichment Process.pptx

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adjacent sediment slurry enrichment proposals for Jamaica Bay. Also known as Thin Layer Placement this process as many opportunities for Jamaica Bay Wetland restoration

adjacent sediment slurry enrichment proposals for Jamaica Bay. Also known as Thin Layer Placement this process as many opportunities for Jamaica Bay Wetland restoration

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Spring 2022 Task Force Meeting presentation on Adjacent Sediment Slurry Enrichment Process.pptx

  1. 1. Adjacent Sediment Slurry Wetlands Enrichment Opportunities in Jamaica Bay
  2. 2. History • 1997-2000 Marsh loss recognition by Ecowatcher’s • April 2001 Ecowatcher’s scientific panel and tour of the bay • May 2001 NPS Blue Ribbon Panel • Recognition of Wetlands Loss Problem • 2002 Ecowatchers contact Florida Power and Light – secure funding commitment for Pilot wetlands Project –outreach to Jet Spray Barge operator • 2003 Barge transported from Louisiana to Jamaica Bay • 2003 Big Egg Marsh Restoration Project
  3. 3. NPS Big Egg Marsh Wetland Restoration Project • Goals • Elevate portion of Big Egg Marsh experiencing marsh die off • Place 8000 CU on depressed pooling areas • Raise elevation 6-18 inches • Hydro seed • Spartina Plug Planting • Create two acres of restored wetlands
  4. 4. Jet Spray Barge operating at Big Egg
  5. 5. Big Egg Marsh
  6. 6. Benefits • Small project areas 2- 3 acres • Low Cost • Stop total marsh loss in areas where the center marsh area is disappearing • Maintenance type of approach to stay ahead of SLR • Create sediment bank that can “feed” adjacent areas
  7. 7. Adjacent Sediment Slurry Enrichment • Barge Platform • Dredge Adjacent Sediment • 130 foot spray range • Barge moved during process • Initiated in Louisiana • Recently Referred to as “Thin Layer Placement” • Spring Creek and Idlewild upcoming projects to utilize
  8. 8. ACOE Thin Layer Placement THP
  9. 9. Black Bank Marsh
  10. 10. Big Egg East
  11. 11. Summary • NOT a replacement for Marsh Island Building • A maintenance program to stay ahead of complete wetland island collapse • Application opportunities in the interior of the bay as well as along the shorelines • Wide-spread acceptance and support across various agencies and multiple states • Additional Opportunity to save the wetlands of Jamaica Bay.
  12. 12. • Questions ?

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