Rhode Island Regional Sediment Management

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UNDER CONSTRUCTION

Figure 1. Study Area for Rhode Island Regional Sediment Management.

The project site is the south shore of Rhode Island and it consists of a series of glacial outwash headlands, barrier islands, and salt ponds. Washington County’s 24 miles of coastline includes two Federal navigation channels (Little Narragansett Bay and Point Judith Harbor), a Federal Harbor of Refuge (Point Judith Harbor of Refuge), a newly completed Section 206 habitat restoration project in Ninigret Pond (removing portions of flood shoal delta for habitat restoration) and two proposed Section 206 projects for Quonochontaug and Winnapaug Ponds (removing portions of flood shoal deltas for habitat restoration). This results in 3 Federal navigation projects and six existing/proposed Federal projects all of which involve the movement/placement of sediment within 24 miles of shoreline. Additionally, the Point Judith Harbor of Refuge is presently being investigated for a potential $20 million breakwater repair.

Project Objectives

The study will develop a Regional Sediment Management Plan. This plan will include:

  • Location/quantification of sediment sources and sediment sinks
  • Sediment transport characteristics
  • Quantification and interpretation of past shoreline changes
  • Establishment and testing of techniques for assessing shoreline response to natural forces and human activity on local and regional bases
  • Ecosystem evaluation
  • Sea level rise impacts
  • Locating potential sources for beach fill projects
  • Enhanced operational practices at Federal navigation projects
  • Developing a means of information dissemination from the study to all interested parties, including governmental planning, engineering and regulatory agencies, and other stakeholders interested in the coast of Washington County in RI.

Model Setup

Validation

Discussion

References

  • [| CHETN-IV-76] CMS-Wave Model: Part 3: Grid Nesting and Application Example for Rhode Island South Shore Regional Sediment Management Study
  • Watts, I. M. (2010) "The Great Mid-Atlantic Storm of 2009: The 'Friday the 13th' Storm Observations in the New England District" Shore and Beach, Vol 78, No. 2, 26-28.
  • Winkelman, J. W. et al, " " Coastal Sediments '11 Conference Proceedings In Press

Resources

Test Cases

Documentation Portal

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