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RI Coastal Resources Management Council

...to preserve, protect, develop, and restore coastal resources for all Rhode Islanders

Dredging
Harbor of Refuge Federal Navigation Dredging Project, Point Judith, RI

The proposed work includes maintenance dredging of the 15-foot-deep entrance channel into the harbor, as well as the eastern and western branch channels and the channel leading into Point Judith Pond. The channel has not been dredged since its construction in 1977. Natural shoaling has reduced the channels’ depth over the years, making navigation hazardous during low tides. Approximately 90,000 cubic yards of sand will be removed from about 25 acres of the area, and will restore the entrance channel and other channels to original depths and dimensions, according to the ACOE. The dredged material will be used to help replenish a near-shore sandbar off Matunuck Beach in South Kingstown. The dredging is scheduled to begin in December 2006 and must be completed by March 2007 at the close of the dredging window.

Army Corps of Engineers Fact Sheet (PDF)

Providence River Dredging Project

The last significant dredging of the Providence River Shipping Channel was completed in 1971. Since that time, a significant reduction in channel water depth and channel width has been documented, a result of sedimentation in the channel. The CRMC was the lead state agency responsible for coordinating the ACOE's efforts to maintain this channel's authorized navigable depths.

Army Corps of Engineers New England District

Sachuest Point Landfill Remediation and Saltmarsh Restoration Project
About the R/V Jack Reed: Funding and Uses
R/V Jack Reed

R/V Jack Reed

CAD Cell Monitoring

CAD cell monitoring using equipment similar to the R/V Jack Reed's

  • The CRMC is required, as a permit condition, to monitor the CAD cells annually. CRMC staff uses the R/V Jack Reed to survey them once a year and also monitor the placement of material into the cells and move the dump locations so they are filled evenly (weekly trips during the dredge season);
  • The CRMC also monitors the adjacent channel to ensure that if material is deposited there mistakenly that it is discovered quickly and removed before a ship strike;
  • The CRMC provides survey services for municipalities to support their dredging efforts – in particular, North Kingstown, Cranston and Barrington – and well as RIDEM and Save the Bay;
  • The CRMC uses this vessel for harbor management projects. The advanced on-board GPS can determine encroachments in real time as well as accurately determine the best limits for reauthorization requests;
  • The CRMC provides support for the U.S. Army Corps of Engineers for reconnaissance studies and access to breakwaters, as well as the U.S. Coast Guard;
  • The CRMC also rescued the Army Corps’ buoys 20 miles offshore when no other vessel was available, and is available for other similar emergency situations;
  • The CRMC uses the GPS to inspect all aquaculture sites for compliance twice annually; and
  • The CRMC works with the University of Rhode Island to complete bottom habitat mapping, as well as mapping the sub-bottom geology regularly (15 trips a year). These maps help us for near shore dredge material placement.

The CRMC is also able to monitor ongoing projects like the submarine disposal, federal dredging and disposal projects, and ensure compliance of other projects/operations by making weekly site visits and day trips. As an example, the CRMC will be out working with the City of East Providence to provide survey services to re-install the day markers that were removed as part of the Bullocks Cove dredging, saving the city approximately $5,000.

Stedman Government Center
Suite 116, 4808 Tower Hill Road, Wakefield, RI 02879-1900
Voice 401-783-3370 • Fax 401-783-3767 • E-Mail cstaff1@crmc.ri.gov

RI SealRI.gov
An Official Rhode Island State Website