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New Hampshire Department of Environmental Services

Dredge Management Task Force (DMTF)

The New Hampshire Dredge Management Task Force (DMTF) is an interagency work group formed in 1993 to review existing and proposed dredging projects and to develop guidelines and policies for dredging activities in New Hampshire’s coastal waters. Dredging supports the region’s economy by keeping channels at adequate depths to ensure safe passage for commercial and recreational users. The DMTF provides technical and regulatory expertise to ensure that dredging projects are conducted in a manner consistent with state and federal rules and regulations.

Regular participants in the DMTF include the Department of Environmental Services New Hampshire Coastal Program (NHCP), Wetlands Bureau and Waste Management Division; New Hampshire Fish and Game Department; Pease Development Authority - Division of Ports and Harbors; Army Corps of Engineers; Environmental Protection Agency; National Marine Fisheries Service; U.S. Fish and Wildlife Service; University of New Hampshire; New Hampshire Congressional staff and others.

The DMTF is currently reviewing a number of proposed projects, including widening the uppermost turning basin in the Piscataqua River, and maintenance dredging of Sagamore Creek in Portsmouth. The DMTF is also working to identify potential onshore and offshore sites to accommodate New Hampshire's future dredge material disposal needs.

Recently completed projects reviewed by the DMTF include maintenance dredging of the “Simplex Shoal” within the Piscataqua River, maintenance and improvement dredging of Hampton-Seabrook Harbor, maintenance dredging of the Hampton Harbor entrance channel, and maintenance dredging of the Cocheco River in Dover.

The Coastal Program currently chairs the DMTF and meetings are generally held quarterly at the NHDES Pease field office in Portsmouth. DMFT meetings are open to the public. For additional information or questions regarding the DMTF, please contact Christian Williams, DMTF chair, at (603) 559-0025 or

The next meeting of the DMTF will be held on May 23, 2018 at 1:30 PM at the Coastal Program's Pease Field Office at 222 International Drive, Suite 175, Portsmouth, NH.

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Past DMFT Meeting Minutes and Presentations



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NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
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