The clamshell Dredges ATLANTIC and VIRGINIAN loaded hydraulic dumps scows which were towed over 20 miles to the Hydraulic Unloader VICKSBURG for placement on the beach. This project required strict contol of dredging, towing and pipeline placement activities to ensure protection of the adjacent and environmentally sensitive hardbottom coral reef areas.
Posts Tagged ‘clamshell dredging’
The two bucket dredges VIRGINIAN and ATLANTIC worked together on this project. By realigning Tolchester Channel, navigation safety was improved for vessels traversing the C&D Canal. To accomplish this over 3,000,000 CY of clay and silt were dredged, transported and placed inside Poplar Island from barges using the unloader VICKSBURG. The maximum round trip tow distance was 75 miles.
Bucket dredges VIRGINIAN and ATLANTIC performed this harbor maintenance job in the winter of 2004/2005. The disposal area for the material was in the ocean 20 miles from the dredge. The dredge ATLANTIC began the project offshore, dredging sand and cobble from Broad Sound North Channel. The dredge VIRGINIAN took over the project performing the remaining maintenance and extracted a sunken flat deck barge about 100-120 feet long and 40-50 feet wide from Broad Sound North Channel. The VIRGINIAN and ATLANTIC each removed several boulders from the channel approximately 8 feet in diameter. The crew did a superb job of coordinating with the local lobstermen to insure that they could both make their living in the waters off Boston.