Contract awarded for dredging at Portsmouth Harbor, Piscataqua River

The work involves removal of 3 distinct, relatively small shoal areas within the Simplex Reach. Advance maintenance dredging to -40 feet Mean Lower Low Water (MLLW) plus 2-foot allowable over-depth dredging will be performed on the primary shoal located adjacent to the Tyco Integrated Systems Company wharf (i.e. formerly the Simplex Wire and Cable Company dock). Maintenance dredging to -35 feet MLLW plus 2-foot of allowable over-depth will be performed on the other two shoals: one located upstream of the primary shoal and one located downstream of the primary shoal.


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