They are currently under great threat from sea level rise (SLR).

They provide ecosystem services such as protection from storm surges and waves, attenuation of flooding, sequestration of pollutants (e.g., blue carbon), and nutrient removal. Waterway and Marine Construction, Waterway and Marine Construction and Equipment, Dredging.Salt marshes are key coastal ecosystems that provide habitats for wildlife, including invertebrates, fishes, and birds. Pier 2 is in Caretaker status and is excluded from the project area. Piers 3A and 4 (both east and West sides, turning basin, terminal channel and the Sandy Hook Federal Channel) shall be dredged to a project depth of 45 feet below mean lower low water (MLLW) plus 2 feet of overdepth. While virtually all of the turning basin and pier area will require dredging the identified channel areas will generally only require dredging where shoaling has reduced the depth. The dredging work shall be done using a clamshell dredge. The estimated quantities assume two feet of overdredge. The proposed project's maintenance dredging work will remove approximately 2,260,169 cubic yards (CY). This project will be done in order to re-establish the minimum required harbor depths needed for access by the Naval vessels that use these facilities. The dredged material will be tested to determine if it meets criteria for remediation material to be used at the Historic Area Remediation Site (HARS) and for placement at the Sea Bright Offshore Borrow Area (SBOBA). The project consists of Maintenance Dredge the areas surrounding piers at Naval Weapons Station (NWS) Earle including all berths, turning basin, terminal channel, and a portion of Sandy Hook Federal Channel. Maintenance Dredging of Raritan River, NJ Federal Navigation Projectĭredging of Powder Mill snd Spooky Brook Ponds at Colonial ParkįY21 Maintenance Dredging of Newark Bay, New Jersey, Federal Navigation Project General Architect-Engineering (A-E) services to Coastal Risk Management Project for South Shore of Staten Island (SSSI) Fort Wadsworth to Oakwood Beach, NY Maintenance Dredging of the Cheesequake Creek, New Jersey, Federal Navigation Project Newton Lake Dredging and Reclamation Projectĭredging of Intake Pond and Channel and Replacement of the Ice Deflectors at the Release Structureĭredging of Childrens Pond at Strawbridge Lake Work Maintenance Dredging of the Port Jersey Channel, New Jersey, Federal Navigation Project.

Coastal dredging data files NJ