New Jersey Department of Environmental Protection. (2014). “News Release: Christie Administration and Army Corps Launch Pilot Project to Study Storm Resiliency Benefits of New Approach for Restoring Coastal Salt Marshes.“
Keywords:dredged materials, resiliency, black skimmer, Stone Harbor, Avalon, Superstorm Sandy, thin-layer placement, Intracoastal Waterway
Summary:Clean dredged material from the Intracoastal Waterway in New Jersey will be used for thin-layer placement to restore saltwater marshes. This will combat land subsidance and sea-level rise. It will also make coastal communities more resilient to storms like Superstorm Sandy.
What You Will Find Here:Webpage
Ferraro, C.. (2014). “Strategies for Implementing Regional Sediment Management: Using a Collaborative Approach to Implementing RSM Principles in Alabama.” CEER, New Orleans, Louisiana, July 28th, 2014
Keywords:Regional Sediment Management, Mobile Bay, Brookley Hole, Thin-Layer Open Placement, Beneficial Use
Summary:These presentation slides cover a range of environmentally acceptable alternatives for disposal of dredged material in Mobile Bay. This includes: disposal at Brookley Hole, thin-layer placement, and marsh creation in the upper bay.
What You Will Find Here:Slides
Virginia Institute of Marine Sciences. (2014). “Thin-layer Sediment Addition of Dredged Material for Enhanced Marsh Resilience.“
Keywords:Thin-Layer Addition, Marsh Resilience
Summary:Virginia’s coastal marshes are valued at $25,000 per acre per year. These marshes are lost due to development and sea level rise. Thin-layer additions of dredged material to marshes could allow them to reach a desired elevation. The goal is to promote vigorous plant growth. Costs associated with the technology include: dredged material transport, possible remediation of dredged material, engineered reductions in wave impacts, environmental impact studies, and planting of seedlings. The technology also requires public ownership of tidal and subaqueous lands, which is the current Virginia policy.
What You Will Find Here:Physical-Biological Considerations p. 1, Economic Considerations p. 2, Policy and Regulation p. 3.
Delaware Department of Natural Resources and Environmental Control. (2013). “DNREC’s first beneficial-reuse marsh restoration project succeeds with thin-layer spray application.” Press Release. Vol. 43, No 212, p. 30, 5-21-13
Keywords:thin-layer placement, marsh restoration, Delaware
Summary:Thin-layer placement of dredged materials was to restore marsh in Pepper Creek satisfied multiple objectives and will serve as a model for similar projects in Delaware.
What You Will Find Here:Webpage
Sallesse, C.. (2012). “GIWW Dredging at West Bay Response to Public Concerns.” USACE Galveston District, Slideshow, January 25th, 2012
Keywords:thin-layer placement, sea grass, dredged material, aerial photography, Gulf Intracoastal Waterway (GIWW)
Summary:The slideshow provides an overview of a thin-layer placement project involving dredged material from shipping canals in Texas. The material was placed in 6-8 inch layers during winter dormancy of the sea grass.
What You Will Find Here:Slides
ay Kim, Sue-Jin An, Roger Santiago, Victoria Renner, Rupert Joyner, Anne Borgmann, Matthew Graham, and Erin Hartman. (2012). “The Use of Thin-Layer Cap to Manage Hg and PCB Contaminated Sediments in Jellicoe Cove, Peninsula Harbour, Ontario, Canada.” Environment Canada Sediment Remediation Unit Presentation
Summary:Case study of Thin-Layer Cap in Jellicoe Cove, Peninsula Harbour, Ontario, Canada. Planning, design, construction, and monitoring is discussed.
What You Will Find Here:Remediation (Hg & PCB) p. 6, Planning p. 7, Monitoring p. 13, 56, Construction p. 30,
CarpMan. (2012). “USACE Makes Changes to West Bay Dredging Project.” Texas FlyFishers
Keywords:Galveston Bay, dredged material, seagrass, placement areas
Summary:The online forum from Texas Flyfishers was used to share the news release documenting changes to placement areas 62 and 63 by the USACE following concerns raised by the Galveston Bay Foundation about effects of dredged material on seagrass.
What You Will Find Here:Webpage
Joseph Gailani, Douglas Clarke,Timothy Welp. (2006). “Working With Nature Beneficial Use Studies.” Presentation
Keywords:Beneficial Use Case Study, Regulatory, Planning, Cost, Monitoring, Construction
Summary:Overview presentation on beneficial use methods of placement and case study discussion.
What You Will Find Here:Beneficial Use Case Study p. 12, p. 13, p. 16, Long Distance Conveyance p. 6, Regulatory p. 8, Planning p. 9, Cost p. 10, Monitoring p. 17, Thin-Layer Placement p. 23
USACE/Interagency Coordination Team (ICT). (2002). “Laguna Madre GIWW Dredged Material Management Plan.“
Keywords:Dredged Material Management Plan (DMMP), Interagency Coordination Team (ICT), Corps of Engineers (USACE), Placement Areas (Pas)
Summary:Each placement area for the Laguna Madre Gulf Intracoastal Waterway is reviewed. Best management practices are used for dispersing dredged material such ase energy dissipating devices for spreading out thin layers and decreasing the chance of burying sea grasses. Dredging windows are set from November through February when seagrass is dormant and less effected by turbidity. Generally elevated turbidity due to dredging activity is limited to an area 3/4 to 1 mile from the discharge point and remains up to 3 months after disposal is complete. It has been determined that if no more than 3 inches of dredged material is placed seagrass can recover in 3-5 years. Typical issues in the placement areas involve: hauling or pumping distances being too long for ocean disposal, recuirements of protecting seagrass, or critical habitat for piping plover or black skimmer. The preservation of cabins are also common issues with dredge material placement. The use of the placement areas for dredged material was surveyed between 1949 and 1995.
What You Will Find Here:General Guidelines p. 2, Reach 1 issues with Ocean Placement p. 3, Pas 213-219 issues p. 17, PA 221 Circulation problems p. 18, Issues with Thin-Layer Placement in Reach 5 p. 19, Erosive Currents PA 233 p. 23
USACE, DoD. (1996). “Notice of Intent to Prepare a Supplemental Environmental Impact Statement for the Gulf Intracoastal Waterway, Corpus Christi Bay to Port Isabel, TX.” Federal Register Doc. Number 96-3276, Volume 61. Issue 31. p. 5754-5755, Wednesday, February 14, 1996.
Keywords:Dedging, Dredged Material, Gulf Intracoastal Waterway
Summary:This is a summary of study activities on a long-term plan for placement of dredged material from maintenance dredging of the Gulf Intracoastal Waterway (GIWW) from Corpus Christi Bay to Port Isabel, Texas.
What You Will Find Here:Summary, Interagency Coordination Team p. 5754; Goals, Concerns, Approved Studies, Schedule, Public Participation p. 5755
Donald R. Cahoon Jr. & James H. Cowan Jr. . (1988). “Environmental impacts and regulatory policy Implications of spray disposal of dredged material in Louisiana wetlands.” Coastal Management, 16:4, 341-362, DOI: 10.1080/08920758809362067
Keywords:Wetland Loss, High-Pressure Spray, Low-Pressure, Cost, Field Demonstration, Regulatory, Monitoring
Summary:The high pressure spray nozzle can be aimed in any direction so that the spoil can be deposited discontinuously in order to completely avoid small natural drainage streams or sensitive habitats. In saline marsh, the sprayed spoil has been observed to remain mostly in place during dredging, with little or no run-off into the canal and turbidity levels in the canal were kept low because of the use of hydraulic suction. This new disposal methodology differs importantly from conventional low-pressure hydraulic dredging and the industry standard, bucket dredging, in terms of dimensions of the spoil area, spoil deposition pattern, cost of dredging, and purported environmental impacts.
What You Will Find Here:Wetland Loss p. 342, High-Pressure Spray (Solid deposition pattern p. 345), Low Pressure Spray p. 243, Cost p. 243, p. 347, p. 359, Field Demonstration (Qualitative p. 351), Spray Dredging, Regulatory (Environmental Impacts p. 348, Policy p. 349, p. 359) Monitoring p. 360