Norfolk Harbor Southern Branch Maintenance Dredging

Description

Required work includes maintenance dredging, by mechanical dredging method, segments of the Southern Branch of the Elizabeth River, part of the Norfolk Harbor Federal Navigation Project. The segments are being dredged to required depth of -41 feet and -36 feet MLLW. One foot of allowable overdepth dredging will be part of the contract dredging pay prism.Dredged material generated by the project shall be transported by barge or scow and placed directed into the cell(s) at the Craney Island Dredged Material Management Area (CIDMMA). Dredging is estimated to generate approximately 96,200 cubic yards of available pay volume.The Contractor shall be responsible for the following: dredging within the designated areas to the required and allowable pay depths, transporting the dredged material to the CIDMMA, discharging the material by direct pump-out method into the designated Government- furnished placement site, properly operating and maintaining the spillways within the CIDMMA, ensuring effluent water leaving the CIDMMA meets State water quality requirements, and communicating with the Port of Hampton Roads maritime users to minimize impacts of vessel traffic, adjacent utilities, and other dredging operations.