Atlantic Intracoastal Waterway (AIWW) Maintenance Dredging

The AIWW Altamaha Sound Beneficial Use of Dredged Material project and Selective Sites Maintenance Dredging Contract provides construction services, including furnishing personnel, transportation, mobilization and demobilization, equipment and materials required in connection with maintenance dredging and the pilot project. This requirement has been traditionally performed with a hydraulic cutterhead dredge and the duration is expected to be six months from time of award. Up to 600 thousand cubic yards of maintenance material is expected to be removed from the AIWW. The work is located within the Savannah District’s portion of the AIWW shallow draft waterway in the states of Georgia and South Carolina. The AIWW in Savannah District begins in Port Royal Sound, South Carolina (Mile 552) and ends in Cumberland Sound, Georgia (Mile 713). The AIWW project depth is -12.0’ MLLW to include -2.0’ of allowable pay overdepth (-14.0’ MLLW). The widths vary from 90 feet in land cuts to 150 feet in natural waterways. Maintenance dredging will be performed in two selected sites on the AIWW; Altamaha Sound and Elba Cut. The maintenance material from Elba Cut (mile 576 to mile 576.4) will be placed in Dredged Material Containment Area 14B which is across the Savannah River from the dredging site. The maintenance material in Altamaha Sound (mile 656.4 to mile 660) will be placed in an open water site to create a temporary 13.2 acre bird nesting site to assist Georgia Department of Natural Resources with available migratory shorebird habitat lost due to the last two hurricanes along the coast within the State. Any shoaled material not being use for the bird island will be placed on Tract 36A which is an unconfined placement site on an island (Hammock) in the Altamaha River.

Division 35 -

Waterway and Marine Construction, Waterway and Marine Construction and Equipment, Dredging.