The U.S. Army Corps of Engineers, Norfolk District, is seeking contractors for the Craney Island Rehandling Basin maintenance dredging, located in Portsmouth, Virginia.
According to the Federal Business Opportunities, the work includes maintenance dredging of the Rehandling Basin at Craney Island Dredged Material Management Area (CIMMA) to a depth of -28 feet Mean Lower Low Water (MLLW) with -2 feet allowable overdepth.
In addition, the work consists of maintenance dredging the Access Channel (s) to a depth of -18 feet MLLW with -2 feet of allowable overdepth and the Debris Channel at a depth of -9 feet MLLW with -2 feet of allowable overdepth.
The work will be performed by a Hydraulic Cutter-head dredge and Hydraulic pipeline, with the transportation of all dredge material to the government-furnished upland placement area at the CIDMMA.
The Corps estimated that the Rehandling Basin dredging, including allowable overdepth, is approximately 885,100 cubic yards of dredge material; that the Access Channels and Debris Channel dredging, including allowable overdepth, is approximately 32,300 cubic yards of material; and that the total estimated amount the contractor will dredge, along with an estimated accretion, is 1,012,400 cubic yards.
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