Maintenance Dredging of Raritan River, New Jersey, Federal Navigation Project, NJ

The New York District of the U.S. Army Corps of Engineers (USACE) proposes to perform maintenance dredging of Raritan River, New Jersey, Channels Federal Navigation Project to a depth of -25 feet Mean Lower Low Water (MLLW) plus 2 feet of allowable over-depth. The proposed maintenance dredging would remove approximately 500,000 cubic yards (CY) of critical shoals from the Raritan River. The proposed dredging area is broken into two dredging areas. Approximately 435,000 cubic yards of dredged material would be removed from Dredging Area “A” and placed at the Historic Area Remediation Site (HARS). Approximately 65,000 cubic yards of dredge material will be removed from Dredging Area “B” and placed upland at a contractor furnished, state permitted upland placement site(s). The dredged material from Dredging Area “A” is expected to consist of 0.0% gravel, 39.5% sand, 36.6% silt, and 24.2% clay. The dredged material from Dredging Area “B” is expected to consist of 0.0% gravel, 37.9% sand, 39.8% silt, and 22.3% clay. Due to NJ restrictions, the proposed work can only be performed utilizing a mechanical dredge with a closed clamshell environmental bucket. Additionally, multiple scows and tugboats will be needed to perform the work during the dredging, and placement operations. Bonds & prevailing wages apply